sync with main

cms/version.py

@@ -1 +1 @@
-VERSION = "8.1.2"
+VERSION = "8.1.3"

frontend/.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-    "editor.formatOnSave": true
+    "editor.formatOnSave": true,
+    "prettier.configPath": "../.prettierrc"
 }

frontend/jest.config.js

@@ -5,5 +5,5 @@ module.exports = {
         '^.+\\.tsx?$': 'ts-jest',
         '^.+\\.jsx?$': 'babel-jest',
     },
-    collectCoverageFrom: ['src/**'],
+    collectCoverageFrom: ['src/**', '!src/static/lib/**'],
 };

frontend/package.json

@@ -21,6 +21,9 @@
         "@babel/core": "^7.26.9",
         "@babel/preset-env": "^7.26.9",
         "@babel/preset-react": "^7.26.3",
+        "@testing-library/dom": "^8.20.1",
+        "@testing-library/jest-dom": "^5.17.0",
+        "@testing-library/react": "^12.1.5",
         "@types/flux": "^3.1.15",
         "@types/jest": "^29.5.12",
         "@types/minimatch": "^5.1.2",

frontend/src/static/js/utils/stores/VideoViewerStore.js

@@ -9,88 +9,89 @@ let browserCache;
 const _StoreData = {};
 
 class VideoPlayerStore extends EventEmitter {
-  constructor() {
+    constructor() {
-    super();
+        super();
 
-    this.mediacms_config = mediacmsConfig(window.MediaCMS);
+        this.mediacms_config = mediacmsConfig(window.MediaCMS);
 
-    browserCache = new BrowserCache(this.mediacms_config.site.id, 86400); // Keep cache data "fresh" for one day.
+        browserCache = new BrowserCache(this.mediacms_config.site.id, 86400); // Keep cache data "fresh" for one day.
 
-    _StoreData.inTheaterMode = browserCache.get('in-theater-mode');
+        _StoreData.inTheaterMode = browserCache.get('in-theater-mode');
-    _StoreData.inTheaterMode = null !== _StoreData.inTheaterMode ? _StoreData.inTheaterMode : !1;
+        _StoreData.inTheaterMode = null !== _StoreData.inTheaterMode ? _StoreData.inTheaterMode : !1;
 
-    _StoreData.playerVolume = browserCache.get('player-volume');
+        _StoreData.playerVolume = browserCache.get('player-volume');
-    _StoreData.playerVolume =
+        _StoreData.playerVolume =
-      null === _StoreData.playerVolume ? 1 : Math.max(Math.min(Number(_StoreData.playerVolume), 1), 0);
+            null === _StoreData.playerVolume ? 1 : Math.max(Math.min(Number(_StoreData.playerVolume), 1), 0);
 
-    _StoreData.playerSoundMuted = browserCache.get('player-sound-muted');
+        _StoreData.playerSoundMuted = browserCache.get('player-sound-muted');
-    _StoreData.playerSoundMuted = null !== _StoreData.playerSoundMuted ? _StoreData.playerSoundMuted : !1;
+        _StoreData.playerSoundMuted = null !== _StoreData.playerSoundMuted ? _StoreData.playerSoundMuted : !1;
 
-    _StoreData.videoQuality = browserCache.get('video-quality');
+        _StoreData.videoQuality = browserCache.get('video-quality');
-    _StoreData.videoQuality = null !== _StoreData.videoQuality ? _StoreData.videoQuality : 'Auto';
+        _StoreData.videoQuality = null !== _StoreData.videoQuality ? _StoreData.videoQuality : 'Auto';
 
-    _StoreData.videoPlaybackSpeed = browserCache.get('video-playback-speed');
+        _StoreData.videoPlaybackSpeed = browserCache.get('video-playback-speed');
-    _StoreData.videoPlaybackSpeed = null !== _StoreData.videoPlaybackSpeed ? _StoreData.videoPlaybackSpeed : !1;
+        _StoreData.videoPlaybackSpeed = null !== _StoreData.videoPlaybackSpeed ? _StoreData.videoPlaybackSpeed : !1;
-  }
-
-  get(type) {
-    let r = null;
-    switch (type) {
-      case 'player-volume':
-        r = _StoreData.playerVolume;
-        break;
-      case 'player-sound-muted':
-        r = _StoreData.playerSoundMuted;
-        break;
-      case 'in-theater-mode':
-        r = _StoreData.inTheaterMode;
-        break;
-      case 'video-data':
-        r = _StoreData.videoData;
-        break;
-      case 'video-quality':
-        r = _StoreData.videoQuality;
-        break;
-      case 'video-playback-speed':
-        r = _StoreData.videoPlaybackSpeed;
-        break;
     }
-    return r;
-  }
 
-  actions_handler(action) {
+    get(type) {
-    switch (action.type) {
+        let r = null;
-      case 'TOGGLE_VIEWER_MODE':
+        switch (type) {
-        _StoreData.inTheaterMode = !_StoreData.inTheaterMode;
+            case 'player-volume':
-        this.emit('changed_viewer_mode');
+                r = _StoreData.playerVolume;
-        break;
+                break;
-      case 'SET_VIEWER_MODE':
+            case 'player-sound-muted':
-        _StoreData.inTheaterMode = action.inTheaterMode;
+                r = _StoreData.playerSoundMuted;
-        browserCache.set('in-theater-mode', _StoreData.inTheaterMode);
+                break;
-        this.emit('changed_viewer_mode');
+            case 'in-theater-mode':
-        break;
+                r = _StoreData.inTheaterMode;
-      case 'SET_PLAYER_VOLUME':
+                break;
-        _StoreData.playerVolume = action.playerVolume;
+            case 'video-data':
-        browserCache.set('player-volume', action.playerVolume);
+                r = _StoreData.videoData;
-        this.emit('changed_player_volume');
+                break;
-        break;
+            case 'video-quality':
-      case 'SET_PLAYER_SOUND_MUTED':
+                r = _StoreData.videoQuality;
-        _StoreData.playerSoundMuted = action.playerSoundMuted;
+                break;
-        browserCache.set('player-sound-muted', action.playerSoundMuted);
+            case 'video-playback-speed':
-        this.emit('changed_player_sound_muted');
+                r = _StoreData.videoPlaybackSpeed;
-        break;
+                break;
-      case 'SET_VIDEO_QUALITY':
+        }
-        _StoreData.videoQuality = action.quality;
+        return r;
-        browserCache.set('video-quality', action.quality);
+    }
-        this.emit('changed_video_quality');
+
-        break;
+    actions_handler(action) {
-      case 'SET_VIDEO_PLAYBACK_SPEED':
+        switch (action.type) {
-        _StoreData.videoPlaybackSpeed = action.playbackSpeed;
+            case 'TOGGLE_VIEWER_MODE':
-        browserCache.set('video-playback-speed', action.playbackSpeed);
+                _StoreData.inTheaterMode = !_StoreData.inTheaterMode;
-        this.emit('changed_video_playback_speed');
+                browserCache.set('in-theater-mode', _StoreData.inTheaterMode);
-        break;
+                this.emit('changed_viewer_mode');
+                break;
+            case 'SET_VIEWER_MODE':
+                _StoreData.inTheaterMode = action.inTheaterMode;
+                browserCache.set('in-theater-mode', _StoreData.inTheaterMode);
+                this.emit('changed_viewer_mode');
+                break;
+            case 'SET_PLAYER_VOLUME':
+                _StoreData.playerVolume = action.playerVolume;
+                browserCache.set('player-volume', action.playerVolume);
+                this.emit('changed_player_volume');
+                break;
+            case 'SET_PLAYER_SOUND_MUTED':
+                _StoreData.playerSoundMuted = action.playerSoundMuted;
+                browserCache.set('player-sound-muted', action.playerSoundMuted);
+                this.emit('changed_player_sound_muted');
+                break;
+            case 'SET_VIDEO_QUALITY':
+                _StoreData.videoQuality = action.quality;
+                browserCache.set('video-quality', action.quality);
+                this.emit('changed_video_quality');
+                break;
+            case 'SET_VIDEO_PLAYBACK_SPEED':
+                _StoreData.videoPlaybackSpeed = action.playbackSpeed;
+                browserCache.set('video-playback-speed', action.playbackSpeed);
+                this.emit('changed_video_playback_speed');
+                break;
+        }
     }
-  }
 }
 
 export default exportStore(new VideoPlayerStore(), 'actions_handler');

frontend/tests/tests-constants.ts

@@ -0,0 +1,385 @@
+export const sampleGlobalMediaCMS = {
+    profileId: 'john',
+    site: {
+        id: 'my-site',
+        url: 'https://example.com/',
+        api: 'https://example.com/api/',
+        title: 'Example',
+        theme: { mode: 'dark', switch: { enabled: true, position: 'sidebar' } },
+        logo: {
+            lightMode: { img: '/img/light.png', svg: '/img/light.svg' },
+            darkMode: { img: '/img/dark.png', svg: '/img/dark.svg' },
+        },
+        devEnv: false,
+        useRoundedCorners: true,
+        version: '1.0.0',
+        taxonomies: {
+            tags: { enabled: true, title: 'Topic Tags' },
+            categories: { enabled: false, title: 'Kinds' },
+        },
+        pages: {
+            featured: { enabled: true, title: 'Featured picks' },
+            latest: { enabled: true, title: 'Recent uploads' },
+            members: { enabled: true, title: 'People' },
+            recommended: { enabled: false, title: 'You may like' },
+        },
+        userPages: {
+            liked: { enabled: true, title: 'Favorites' },
+            history: { enabled: true, title: 'Watched' },
+        },
+    },
+    url: {
+        home: '/',
+        admin: '/admin',
+        error404: '/404',
+        latestMedia: '/latest',
+        featuredMedia: '/featured',
+        recommendedMedia: '/recommended',
+        signin: '/signin',
+        signout: '/signout',
+        register: '/register',
+        changePassword: '/password',
+        members: '/members',
+        search: '/search',
+        likedMedia: '/liked',
+        history: '/history',
+        addMedia: '/add',
+        editChannel: '/edit/channel',
+        editProfile: '/edit/profile',
+        tags: '/tags',
+        categories: '/categories',
+        manageMedia: '/manage/media',
+        manageUsers: '/manage/users',
+        manageComments: '/manage/comments',
+    },
+    api: {
+        media: 'v1/media/',
+        playlists: 'v1/playlists',
+        members: 'v1/users',
+        liked: 'v1/user/liked',
+        history: 'v1/user/history',
+        tags: 'v1/tags',
+        categories: 'v1/categories',
+        manage_media: 'v1/manage/media',
+        manage_users: 'v1/manage/users',
+        manage_comments: 'v1/manage/comments',
+        search: 'v1/search',
+        actions: 'v1/actions',
+        comments: 'v1/comments',
+    },
+    contents: {
+        header: {
+            right: '',
+            onLogoRight: '',
+        },
+        notifications: {
+            messages: { addToLiked: 'Yay', removeFromLiked: 'Oops', addToDisliked: 'nay', removeFromDisliked: 'ok' },
+        },
+        sidebar: {
+            belowNavMenu: '__belowNavMenu__',
+            belowThemeSwitcher: '__belowThemeSwitcher__',
+            footer: '__footer__',
+            mainMenuExtraItems: [
+                { text: '__text_1__', link: '__link_1__', icon: '__icon_1__', className: '__className_1__' },
+            ],
+            navMenuItems: [
+                { text: '__text_2__', link: '__link_2__', icon: '__icon_2__', className: '__className_2__' },
+            ],
+        },
+        uploader: {
+            belowUploadArea: '__belowUploadArea__',
+            postUploadMessage: '__postUploadMessage__',
+        },
+    },
+    pages: {
+        home: {
+            sections: {
+                latest: { title: 'Latest T' },
+                featured: { title: 'Featured T' },
+                recommended: { title: 'Recommended T' },
+            },
+        },
+        media: { categoriesWithTitle: true, htmlInDescription: true, hideViews: true, related: { initialSize: 5 } },
+        profile: { htmlInDescription: true, includeHistory: true, includeLikedMedia: true },
+        search: { advancedFilters: true },
+    },
+    features: {
+        mediaItem: { hideAuthor: true, hideViews: false, hideDate: true },
+        media: {
+            actions: {
+                like: true,
+                dislike: true,
+                report: true,
+                comment: true,
+                comment_mention: true,
+                download: true,
+                save: true,
+                share: true,
+            },
+            shareOptions: ['embed', 'email'],
+        },
+        playlists: { mediaTypes: ['audio'] },
+        sideBar: { hideHomeLink: false, hideTagsLink: true, hideCategoriesLink: false },
+        embeddedVideo: { initialDimensions: { width: 640, height: 360 } },
+        headerBar: { hideLogin: false, hideRegister: true },
+    },
+    user: {
+        is: { anonymous: false, admin: true },
+        name: ' John ',
+        username: ' john ',
+        thumbnail: ' /img/j.png ',
+        can: {
+            changePassword: true,
+            deleteProfile: true,
+            addComment: true,
+            mentionComment: true,
+            deleteComment: true,
+            editMedia: true,
+            deleteMedia: true,
+            editSubtitle: true,
+            manageMedia: true,
+            manageUsers: true,
+            manageComments: true,
+            contactUser: true,
+            canSeeMembersPage: true,
+            usersNeedsToBeApproved: false,
+            addMedia: true,
+            editProfile: true,
+            readComment: true,
+        },
+        pages: { about: '/u/john/about ', media: '/u/john ', playlists: '/u/john/playlists ' },
+    },
+};
+
+export const sampleMediaCMSConfig = {
+    api: {
+        archive: {
+            tags: '',
+            categories: '',
+        },
+        featured: '',
+        manage: {
+            media: '',
+            users: '',
+            comments: '',
+        },
+        media: '',
+        playlists: '/v1/playlists',
+        recommended: '',
+        search: {
+            query: '',
+            titles: './search.html?titles=',
+            tag: '',
+            category: '',
+        },
+        user: {
+            liked: '',
+            history: '',
+            playlists: '/playlists/?author=',
+        },
+        users: '/users',
+    },
+    contents: {
+        header: {
+            right: '',
+            onLogoRight: '',
+        },
+        uploader: {
+            belowUploadArea: '',
+            postUploadMessage: '',
+        },
+        sidebar: {
+            belowNavMenu: '__belowNavMenu__',
+            belowThemeSwitcher: '__belowThemeSwitcher__',
+            footer: '__footer__',
+            mainMenuExtra: {
+                items: [{ text: '__text_1__', link: '__link_1__', icon: '__icon_1__', className: '__className_1__' }],
+            },
+            navMenu: {
+                items: [{ text: '__text_2__', link: '__link_2__', icon: '__icon_2__', className: '__className_2__' }],
+            },
+        },
+    },
+    enabled: {
+        taxonomies: sampleGlobalMediaCMS.site.taxonomies,
+        pages: {
+            featured: { enabled: true, title: 'Featured picks' },
+            latest: { enabled: true, title: 'Recent uploads' },
+            members: { enabled: true, title: 'People' },
+            recommended: { enabled: true, title: 'You may like' },
+            liked: { enabled: true, title: 'Favorites' },
+            history: { enabled: true, title: 'Watched' },
+        },
+    },
+    member: {
+        name: null,
+        username: 'john',
+        thumbnail: null,
+        is: {
+            admin: false,
+            anonymous: false,
+        },
+        can: {
+            addComment: false,
+            addMedia: false,
+            canSeeMembersPage: false,
+            changePassword: false,
+            contactUser: false,
+            deleteComment: false,
+            deleteMedia: false,
+            deleteProfile: false,
+            dislikeMedia: false,
+            downloadMedia: false,
+            editMedia: false,
+            editProfile: false,
+            editSubtitle: false,
+            likeMedia: false,
+            login: false,
+            manageComments: false,
+            manageMedia: false,
+            manageUsers: false,
+            mentionComment: false,
+            readComment: true,
+            register: false,
+            reportMedia: false,
+            saveMedia: true,
+            shareMedia: false,
+            usersNeedsToBeApproved: false,
+        },
+        pages: {
+            home: null,
+            about: null,
+            media: null,
+            playlists: null,
+        },
+    },
+    media: {
+        item: {
+            displayAuthor: false,
+            displayViews: false,
+            displayPublishDate: false,
+        },
+        share: {
+            options: [],
+        },
+    },
+    notifications: {
+        messages: {
+            addToLiked: '',
+            removeFromLiked: '',
+            addToDisliked: '',
+            removeFromDisliked: '',
+        },
+    },
+    options: {
+        pages: {
+            home: {
+                sections: {
+                    latest: {
+                        title: '',
+                    },
+                    featured: {
+                        title: '',
+                    },
+                    recommended: {
+                        title: '',
+                    },
+                },
+            },
+            search: {
+                advancedFilters: false,
+            },
+            media: {
+                categoriesWithTitle: true,
+                htmlInDescription: true,
+                related: { initialSize: 5 },
+                displayViews: true,
+            },
+            profile: {
+                htmlInDescription: false,
+                includeHistory: false,
+                includeLikedMedia: false,
+            },
+        },
+        embedded: {
+            video: {
+                dimensions: {
+                    width: 0,
+                    widthUnit: 'px',
+                    height: 0,
+                    heightUnit: 'px',
+                },
+            },
+        },
+    },
+    playlists: {
+        mediaTypes: [],
+    },
+    sidebar: {
+        hideHomeLink: false,
+        hideTagsLink: false,
+        hideCategoriesLink: false,
+    },
+    site: {
+        api: '',
+        id: '',
+        title: '',
+        url: '',
+        useRoundedCorners: false,
+        version: '',
+    },
+    theme: {
+        logo: {
+            lightMode: { img: '/img/light.png', svg: '/img/light.svg' },
+            darkMode: { img: '/img/dark.png', svg: '/img/dark.svg' },
+        },
+        mode: 'dark',
+        switch: {
+            enabled: true,
+            position: 'sidebar',
+        },
+    },
+    url: {
+        admin: '',
+        archive: {
+            categories: '',
+            tags: '',
+        },
+        changePassword: '',
+        embed: '',
+        error404: '',
+        featured: '',
+        home: '',
+        latest: '',
+        manage: {
+            comments: '',
+            media: '',
+            users: '',
+        },
+        members: '',
+        profile: {
+            about: '',
+            media: '',
+            playlists: '',
+            shared_by_me: '',
+            shared_with_me: '',
+        },
+        recommended: '',
+        register: '',
+        search: {
+            base: '',
+            category: '',
+            query: '',
+            tag: '',
+        },
+        signin: '',
+        signout: '',
+        user: {
+            addMedia: '',
+            editChannel: '',
+            editProfile: '',
+            history: '',
+            liked: '',
+        },
+    },
+};

frontend/tests/utils/actions/MediaPageActions.test.ts

@@ -0,0 +1,145 @@
+import * as MediaPageActions from '../../../src/static/js/utils/actions/MediaPageActions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by MediaPageActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('MediaPageActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('loadMediaData', () => {
+            it('Should dispatch LOAD_MEDIA_DATA action', () => {
+                MediaPageActions.loadMediaData();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'LOAD_MEDIA_DATA' });
+            });
+        });
+
+        describe('likeMedia / dislikeMedia', () => {
+            it('Should dispatch LIKE_MEDIA action', () => {
+                MediaPageActions.likeMedia();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'LIKE_MEDIA' });
+            });
+
+            it('Should dispatch DISLIKE_MEDIA action', () => {
+                MediaPageActions.dislikeMedia();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'DISLIKE_MEDIA' });
+            });
+        });
+
+        describe('reportMedia', () => {
+            it('Should dispatch REPORT_MEDIA with empty string when description is undefined', () => {
+                MediaPageActions.reportMedia();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REPORT_MEDIA', reportDescription: '' });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch REPORT_MEDIA with stripped description when provided', () => {
+                MediaPageActions.reportMedia('  some   text  ');
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REPORT_MEDIA', reportDescription: 'sometext' });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should remove all whitespace characters including newlines and tabs', () => {
+                MediaPageActions.reportMedia('\n\t spaced\ntext \t');
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REPORT_MEDIA', reportDescription: 'spacedtext' });
+            });
+        });
+
+        describe('copyShareLink / copyEmbedMediaCode', () => {
+            it('Should dispatch COPY_SHARE_LINK carrying the provided input element', () => {
+                const inputElem = document.createElement('input');
+                MediaPageActions.copyShareLink(inputElem);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'COPY_SHARE_LINK', inputElement: inputElem });
+            });
+
+            it('Should dispatch COPY_EMBED_MEDIA_CODE carrying the provided textarea element', () => {
+                const textarea = document.createElement('textarea');
+                MediaPageActions.copyEmbedMediaCode(textarea);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'COPY_EMBED_MEDIA_CODE', inputElement: textarea });
+            });
+        });
+
+        describe('removeMedia', () => {
+            it('Should dispatch REMOVE_MEDIA action', () => {
+                MediaPageActions.removeMedia();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REMOVE_MEDIA' });
+            });
+        });
+
+        describe('comments', () => {
+            it('Should dispatch SUBMIT_COMMENT with provided text', () => {
+                const commentText = 'Nice one';
+                MediaPageActions.submitComment(commentText);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'SUBMIT_COMMENT', commentText });
+            });
+
+            it('Should dispatch DELETE_COMMENT with provided comment id', () => {
+                const commentId = 'c-123';
+                MediaPageActions.deleteComment(commentId);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'DELETE_COMMENT', commentId });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch DELETE_COMMENT with numeric comment id', () => {
+                const commentId = 42;
+                MediaPageActions.deleteComment(commentId);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'DELETE_COMMENT', commentId });
+            });
+        });
+
+        describe('playlists', () => {
+            it('Should dispatch CREATE_PLAYLIST with provided data', () => {
+                const payload = { title: 'My list', description: 'Desc' };
+                MediaPageActions.createPlaylist(payload);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'CREATE_PLAYLIST', playlist_data: payload });
+            });
+
+            it('Should dispatch ADD_MEDIA_TO_PLAYLIST with ids', () => {
+                const playlist_id = 'pl-1';
+                const media_id = 'm-1';
+                MediaPageActions.addMediaToPlaylist(playlist_id, media_id);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'ADD_MEDIA_TO_PLAYLIST', playlist_id, media_id });
+            });
+
+            it('Should dispatch REMOVE_MEDIA_FROM_PLAYLIST with ids', () => {
+                const playlist_id = 'pl-1';
+                const media_id = 'm-1';
+                MediaPageActions.removeMediaFromPlaylist(playlist_id, media_id);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REMOVE_MEDIA_FROM_PLAYLIST', playlist_id, media_id });
+            });
+
+            it('Should dispatch APPEND_NEW_PLAYLIST with provided playlist data', () => {
+                const playlist_data = {
+                    playlist_id: 'pl-2',
+                    add_date: new Date('2020-01-01T00:00:00Z'),
+                    description: 'Cool',
+                    title: 'T',
+                    media_list: ['a', 'b'],
+                };
+                MediaPageActions.addNewPlaylist(playlist_data);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'APPEND_NEW_PLAYLIST', playlist_data });
+            });
+        });
+    });
+});

frontend/tests/utils/actions/PageActions.test.ts

@@ -0,0 +1,55 @@
+import * as PageActions from '../../../src/static/js/utils/actions/PageActions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by PageActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('PageActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('initPage', () => {
+            it('Should dispatch INIT_PAGE with provided page string', () => {
+                PageActions.initPage('home');
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'INIT_PAGE', page: 'home' });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch INIT_PAGE with empty string', () => {
+                PageActions.initPage('');
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'INIT_PAGE', page: '' });
+            });
+        });
+
+        describe('toggleMediaAutoPlay', () => {
+            it('Should dispatch TOGGLE_AUTO_PLAY action', () => {
+                PageActions.toggleMediaAutoPlay();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'TOGGLE_AUTO_PLAY' });
+            });
+        });
+
+        describe('addNotification', () => {
+            it('Should dispatch ADD_NOTIFICATION with message and id', () => {
+                const notification = 'Saved!';
+                const notificationId = 'notif-1';
+                PageActions.addNotification(notification, notificationId);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'ADD_NOTIFICATION', notification, notificationId });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch ADD_NOTIFICATION with empty notification message', () => {
+                const notification = '';
+                const notificationId = 'id-empty';
+                PageActions.addNotification(notification, notificationId);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'ADD_NOTIFICATION', notification, notificationId });
+            });
+        });
+    });
+});

frontend/tests/utils/actions/PlaylistPageActions.test.ts

@@ -0,0 +1,96 @@
+import { PlaylistPageActions } from '../../../src/static/js/utils/actions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by PlaylistPageActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('PlaylistPageActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('loadPlaylistData', () => {
+            it('Should dispatch LOAD_PLAYLIST_DATA action', () => {
+                PlaylistPageActions.loadPlaylistData();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'LOAD_PLAYLIST_DATA' });
+            });
+        });
+
+        describe('toggleSave', () => {
+            it('Should dispatch TOGGLE_SAVE action', () => {
+                PlaylistPageActions.toggleSave();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'TOGGLE_SAVE' });
+            });
+        });
+
+        describe('updatePlaylist', () => {
+            it('Should dispatch UPDATE_PLAYLIST with provided title and description', () => {
+                const payload = { title: 'My Playlist', description: 'A description' };
+                PlaylistPageActions.updatePlaylist(payload);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'UPDATE_PLAYLIST', playlist_data: payload });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch UPDATE_PLAYLIST with empty strings for title and description', () => {
+                const payload = { title: '', description: '' };
+                PlaylistPageActions.updatePlaylist(payload);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'UPDATE_PLAYLIST', playlist_data: payload });
+            });
+        });
+
+        describe('removePlaylist', () => {
+            it('Should dispatch REMOVE_PLAYLIST action', () => {
+                PlaylistPageActions.removePlaylist();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'REMOVE_PLAYLIST' });
+            });
+        });
+
+        describe('removedMediaFromPlaylist', () => {
+            it('Should dispatch MEDIA_REMOVED_FROM_PLAYLIST with media and playlist ids', () => {
+                PlaylistPageActions.removedMediaFromPlaylist('m1', 'p1');
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({
+                    type: 'MEDIA_REMOVED_FROM_PLAYLIST',
+                    media_id: 'm1',
+                    playlist_id: 'p1',
+                });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch MEDIA_REMOVED_FROM_PLAYLIST with empty ids as strings', () => {
+                PlaylistPageActions.removedMediaFromPlaylist('', '');
+                expect(dispatch).toHaveBeenCalledWith({
+                    type: 'MEDIA_REMOVED_FROM_PLAYLIST',
+                    media_id: '',
+                    playlist_id: '',
+                });
+            });
+        });
+
+        describe('reorderedMediaInPlaylist', () => {
+            it('Should dispatch PLAYLIST_MEDIA_REORDERED with provided array', () => {
+                const items = [
+                    { id: '1', url: '/1', thumbnail_url: '/t1' },
+                    { id: '2', url: '/2', thumbnail_url: '/t2' },
+                ];
+                PlaylistPageActions.reorderedMediaInPlaylist(items);
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'PLAYLIST_MEDIA_REORDERED', playlist_media: items });
+            });
+
+            // @todo: Revisit this behavior
+            it('Should dispatch PLAYLIST_MEDIA_REORDERED with empty array for playlist media', () => {
+                const items: any[] = [];
+                PlaylistPageActions.reorderedMediaInPlaylist(items);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'PLAYLIST_MEDIA_REORDERED', playlist_media: items });
+            });
+        });
+    });
+});

frontend/tests/utils/actions/PlaylistViewActions.test.ts

@@ -0,0 +1,39 @@
+import { PlaylistViewActions } from '../../../src/static/js/utils/actions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by PlaylistViewActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('PlaylistViewActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('toggleLoop', () => {
+            it('Should dispatch TOGGLE_LOOP action', () => {
+                PlaylistViewActions.toggleLoop();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'TOGGLE_LOOP' });
+            });
+        });
+
+        describe('toggleShuffle', () => {
+            it('Should dispatch TOGGLE_SHUFFLE action', () => {
+                PlaylistViewActions.toggleShuffle();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'TOGGLE_SHUFFLE' });
+            });
+        });
+
+        describe('toggleSave', () => {
+            it('Should dispatch TOGGLE_SAVE action', () => {
+                PlaylistViewActions.toggleSave();
+                expect(dispatch).toHaveBeenCalledTimes(1);
+                expect(dispatch).toHaveBeenCalledWith({ type: 'TOGGLE_SAVE' });
+            });
+        });
+    });
+});

frontend/tests/utils/actions/ProfilePageActions.test.ts

@@ -0,0 +1,27 @@
+import { ProfilePageActions } from '../../../src/static/js/utils/actions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by ProfilePageActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('ProfilePageActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        it('Should dispatch LOAD_AUTHOR_DATA ', () => {
+            ProfilePageActions.load_author_data();
+            expect(dispatch).toHaveBeenCalledTimes(1);
+            expect(dispatch).toHaveBeenCalledWith({ type: 'LOAD_AUTHOR_DATA' });
+        });
+
+        it('Should dispatch REMOVE_PROFILE ', () => {
+            ProfilePageActions.remove_profile();
+            expect(dispatch).toHaveBeenCalledTimes(1);
+            expect(dispatch).toHaveBeenCalledWith({ type: 'REMOVE_PROFILE' });
+        });
+    });
+});

frontend/tests/utils/actions/SearchFieldActions.test.ts

@@ -0,0 +1,25 @@
+import { SearchFieldActions } from '../../../src/static/js/utils/actions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by SearchFieldActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('SearchFieldActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('requestPredictions', () => {
+            it('Should dispatch REQUEST_PREDICTIONS with provided query strings', () => {
+                SearchFieldActions.requestPredictions('cats');
+                SearchFieldActions.requestPredictions('');
+                expect(dispatch).toHaveBeenCalledTimes(2);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'REQUEST_PREDICTIONS', query: 'cats' });
+                expect(dispatch).toHaveBeenNthCalledWith(2, { type: 'REQUEST_PREDICTIONS', query: '' });
+            });
+        });
+    });
+});

frontend/tests/utils/actions/VideoViewerActions.test.ts

@@ -0,0 +1,72 @@
+import { VideoViewerActions } from '../../../src/static/js/utils/actions';
+import dispatcher from '../../../src/static/js/utils/dispatcher';
+
+// Mock the dispatcher module used by VideoViewerActions
+jest.mock('../../../src/static/js/utils/dispatcher', () => ({ dispatch: jest.fn() }));
+
+describe('utils/actions', () => {
+    describe('VideoViewerActions', () => {
+        const dispatch = dispatcher.dispatch;
+
+        beforeEach(() => {
+            (dispatcher.dispatch as jest.Mock).mockClear();
+        });
+
+        describe('set_viewer_mode', () => {
+            it('Should dispatch SET_VIEWER_MODE with "true" and "false" for enabling and disabling theater mode', () => {
+                VideoViewerActions.set_viewer_mode(true);
+                VideoViewerActions.set_viewer_mode(false);
+                expect(dispatch).toHaveBeenCalledTimes(2);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'SET_VIEWER_MODE', inTheaterMode: true });
+                expect(dispatch).toHaveBeenNthCalledWith(2, { type: 'SET_VIEWER_MODE', inTheaterMode: false });
+            });
+        });
+
+        describe('set_player_volume', () => {
+            it('Should dispatch SET_PLAYER_VOLUME with provided volume numbers', () => {
+                VideoViewerActions.set_player_volume(0);
+                VideoViewerActions.set_player_volume(0.75);
+                VideoViewerActions.set_player_volume(1);
+                expect(dispatch).toHaveBeenCalledTimes(3);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'SET_PLAYER_VOLUME', playerVolume: 0 });
+                expect(dispatch).toHaveBeenNthCalledWith(2, { type: 'SET_PLAYER_VOLUME', playerVolume: 0.75 });
+                expect(dispatch).toHaveBeenNthCalledWith(3, { type: 'SET_PLAYER_VOLUME', playerVolume: 1 });
+            });
+        });
+
+        describe('set_player_sound_muted', () => {
+            it('Should dispatch SET_PLAYER_SOUND_MUTED with "true" and "false"', () => {
+                VideoViewerActions.set_player_sound_muted(true);
+                VideoViewerActions.set_player_sound_muted(false);
+                expect(dispatch).toHaveBeenCalledTimes(2);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'SET_PLAYER_SOUND_MUTED', playerSoundMuted: true });
+                expect(dispatch).toHaveBeenNthCalledWith(2, {
+                    type: 'SET_PLAYER_SOUND_MUTED',
+                    playerSoundMuted: false,
+                });
+            });
+        });
+
+        describe('set_video_quality', () => {
+            it('Should dispatch SET_VIDEO_QUALITY with "auto" and numeric quality', () => {
+                VideoViewerActions.set_video_quality('auto');
+                VideoViewerActions.set_video_quality(720);
+                expect(dispatch).toHaveBeenCalledTimes(2);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'SET_VIDEO_QUALITY', quality: 'auto' });
+                expect(dispatch).toHaveBeenNthCalledWith(2, { type: 'SET_VIDEO_QUALITY', quality: 720 });
+            });
+        });
+
+        describe('set_video_playback_speed', () => {
+            it('Should dispatch SET_VIDEO_PLAYBACK_SPEED with different speeds', () => {
+                VideoViewerActions.set_video_playback_speed(1.5);
+                VideoViewerActions.set_video_playback_speed(0.5);
+                VideoViewerActions.set_video_playback_speed(2);
+                expect(dispatch).toHaveBeenCalledTimes(3);
+                expect(dispatch).toHaveBeenNthCalledWith(1, { type: 'SET_VIDEO_PLAYBACK_SPEED', playbackSpeed: 1.5 });
+                expect(dispatch).toHaveBeenNthCalledWith(2, { type: 'SET_VIDEO_PLAYBACK_SPEED', playbackSpeed: 0.5 });
+                expect(dispatch).toHaveBeenNthCalledWith(3, { type: 'SET_VIDEO_PLAYBACK_SPEED', playbackSpeed: 2 });
+            });
+        });
+    });
+});

frontend/tests/utils/classes/BrowserCache.test.ts

@@ -0,0 +1,92 @@
+import { BrowserCache } from '../../../src/static/js/utils/classes/BrowserCache';
+
+// Mocks for helpers used by BrowserCache
+jest.mock('../../../src/static/js/utils/helpers/', () => ({
+    logErrorAndReturnError: jest.fn((args: any[]) => ({ error: true, args })),
+    logWarningAndReturnError: jest.fn((args: any[]) => ({ warning: true, args })),
+}));
+
+const { logErrorAndReturnError } = jest.requireMock('../../../src/static/js/utils/helpers/');
+
+describe('utils/classes', () => {
+    describe('BrowserCache', () => {
+        beforeEach(() => {
+            localStorage.clear();
+            jest.clearAllMocks();
+        });
+
+        test('Returns error when prefix is missing', () => {
+            const cache = BrowserCache(undefined, 3600);
+            expect(cache).toEqual(expect.objectContaining({ error: true }));
+            expect(logErrorAndReturnError).toHaveBeenCalledWith(['Cache object prefix is required']);
+        });
+
+        test('Set and get returns stored primitive value before expiration', () => {
+            const cache = BrowserCache('prefix', 3600);
+
+            if (cache instanceof Error) {
+                expect(cache instanceof Error).toBe(false);
+                return;
+            }
+
+            expect(cache.set('foo', 'bar')).toBe(true);
+            expect(cache.get('foo')).toBe('bar');
+
+            // Ensure value serialized in localStorage with namespaced key
+            const raw = localStorage.getItem('prefix[foo]') as string;
+            const parsed = JSON.parse(raw);
+            expect(parsed.value).toBe('bar');
+            expect(typeof parsed.expire).toBe('number');
+            expect(parsed.expire).toBeGreaterThan(Date.now());
+        });
+
+        test('Get returns null when expired', () => {
+            const cache = BrowserCache('prefix', 1);
+
+            if (cache instanceof Error) {
+                expect(cache instanceof Error).toBe(false);
+                return;
+            }
+
+            cache.set('exp', { a: 1 });
+
+            jest.useFakeTimers();
+            jest.advanceTimersByTime(1_000);
+
+            expect(cache.get('exp')).toBeNull();
+
+            jest.useRealTimers();
+        });
+
+        test('Clear removes only keys for its prefix', () => {
+            const cacheA = BrowserCache('A', 3600);
+            const cacheB = BrowserCache('B', 3600);
+
+            if (cacheA instanceof Error) {
+                expect(cacheA instanceof Error).toBe(false);
+                return;
+            }
+
+            if (cacheB instanceof Error) {
+                expect(cacheB instanceof Error).toBe(false);
+                return;
+            }
+
+            cacheA.set('x', 1);
+            cacheB.set('x', 2);
+
+            expect(localStorage.getItem('A[x]')).toBeTruthy();
+            expect(localStorage.getItem('B[x]')).toBeTruthy();
+
+            cacheA.clear();
+
+            expect(localStorage.getItem('A[x]')).toBeNull();
+            expect(localStorage.getItem('B[x]')).toBeTruthy();
+
+            cacheB.clear();
+
+            expect(localStorage.getItem('A[x]')).toBeNull();
+            expect(localStorage.getItem('B[x]')).toBeNull();
+        });
+    });
+});

frontend/tests/utils/classes/MediaDurationInfo.test.ts

@@ -0,0 +1,101 @@
+import { MediaDurationInfo } from '../../../src/static/js/utils/classes/MediaDurationInfo';
+
+describe('utils/classes', () => {
+    describe('MediaDurationInfo', () => {
+        test('Initializes via constructor when seconds is a positive integer (<= 59)', () => {
+            const mdi = new MediaDurationInfo(42);
+            expect(mdi.toString()).toBe('0:42');
+            expect(mdi.ariaLabel()).toBe('42 seconds');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DT0H0M42S');
+        });
+
+        test('Formats minutes and zero-pads seconds; no hours prefix under 60 minutes', () => {
+            const mdi = new MediaDurationInfo();
+            mdi.update(5 * 60 + 7);
+            expect(mdi.toString()).toBe('5:07');
+            expect(mdi.ariaLabel()).toBe('5 minutes, 7 seconds');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DT0H5M7S');
+        });
+
+        test('Includes hours when duration >= 1 hour and zero-pads minutes when needed', () => {
+            const mdi = new MediaDurationInfo();
+            mdi.update(1 * 3600 + 2 * 60 + 3);
+            expect(mdi.toString()).toBe('1:02:03');
+            expect(mdi.ariaLabel()).toBe('1 hours, 2 minutes, 3 seconds');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DT1H2M3S');
+        });
+
+        test('Accumulates hours when days are present (e.g., 1 day + 2:03:04 => 26:03:04)', () => {
+            const mdi = new MediaDurationInfo();
+            const seconds = 1 * 86400 + 2 * 3600 + 3 * 60 + 4; // 1d 2:03:04 => 26:03:04
+            mdi.update(seconds);
+            expect(mdi.toString()).toBe('26:03:04');
+            expect(mdi.ariaLabel()).toBe('26 hours, 3 minutes, 4 seconds');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DT26H3M4S');
+        });
+
+        test('Large durations: multiple days correctly mapped into hours', () => {
+            const mdi = new MediaDurationInfo();
+            const seconds = 3 * 86400 + 10 * 3600 + 15 * 60 + 9; // 3d 10:15:09 => 82:15:09
+            mdi.update(seconds);
+            expect(mdi.toString()).toBe('82:15:09');
+            expect(mdi.ariaLabel()).toBe('82 hours, 15 minutes, 9 seconds');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DT82H15M9S');
+        });
+
+        test('Caching: toString and ariaLabel recompute only after update()', () => {
+            const mdi = new MediaDurationInfo(59);
+            const firstToString = mdi.toString();
+            const firstAria = mdi.ariaLabel();
+            expect(firstToString).toBe('0:59');
+            expect(firstAria).toBe('59 seconds');
+
+            // Call again to hit cached path
+            expect(mdi.toString()).toBe(firstToString);
+            expect(mdi.ariaLabel()).toBe(firstAria);
+
+            // Update and ensure cache invalidates
+            mdi.update(60);
+            expect(mdi.toString()).toBe('1:00');
+            expect(mdi.ariaLabel()).toBe('1 minutes');
+        });
+
+        test('Ignores invalid (non-positive integer or zero) updates, retaining previous value', () => {
+            const mdi = new MediaDurationInfo(10);
+            expect(mdi.toString()).toBe('0:10');
+
+            mdi.update(1.23);
+            expect(mdi.toString()).toBe('0:10');
+
+            mdi.update(-5);
+            expect(mdi.toString()).toBe('0:10');
+
+            mdi.update('x');
+            expect(mdi.toString()).toBe('0:10');
+        });
+
+        test('Boundary conditions around a minute and an hour', () => {
+            const mdi = new MediaDurationInfo();
+
+            mdi.update(59);
+            expect(mdi.toString()).toBe('0:59');
+
+            mdi.update(60);
+            expect(mdi.toString()).toBe('1:00');
+
+            mdi.update(3599);
+            expect(mdi.toString()).toBe('59:59');
+
+            mdi.update(3600);
+            expect(mdi.toString()).toBe('1:00:00');
+        });
+
+        // @todo: Revisit this behavior
+        test('Constructs without initial seconds', () => {
+            const mdi = new MediaDurationInfo();
+            expect(typeof mdi.toString()).toBe('function');
+            expect(mdi.ariaLabel()).toBe('');
+            expect(mdi.ISO8601()).toBe('P0Y0M0DTundefinedHundefinedMundefinedS');
+        });
+    });
+});

frontend/tests/utils/classes/UpNextLoaderView.test.ts

@@ -0,0 +1,102 @@
+import { UpNextLoaderView } from '../../../src/static/js/utils/classes/UpNextLoaderView';
+
+// Minimal helpers mocks used by UpNextLoaderView
+jest.mock('../../../src/static/js/utils/helpers/', () => ({
+    addClassname: jest.fn((el: any, cn: string) => el && el.classList && el.classList.add(cn)),
+    removeClassname: jest.fn((el: any, cn: string) => el && el.classList && el.classList.remove(cn)),
+    translateString: (s: string) => s,
+}));
+
+const { addClassname, removeClassname } = jest.requireMock('../../../src/static/js/utils/helpers/');
+
+const makeNextItem = () => ({
+    url: '/next-url',
+    title: 'Next title',
+    author_name: 'Jane Doe',
+    thumbnail_url: 'https://example.com/thumb.jpg',
+});
+
+describe('utils/classes', () => {
+    describe('UpNextLoaderView', () => {
+        test('html() builds structure with expected classes and content', () => {
+            const v = new UpNextLoaderView(makeNextItem());
+
+            const root = v.html();
+
+            expect(root).toBeInstanceOf(HTMLElement);
+            expect(root.querySelector('.up-next-loader-inner')).not.toBeNull();
+            expect(root.querySelector('.up-next-label')!.textContent).toBe('Up Next');
+            expect(root.querySelector('.next-media-title')!.textContent).toBe('Next title');
+            expect(root.querySelector('.next-media-author')!.textContent).toBe('Jane Doe');
+
+            // poster background
+            const poster = root.querySelector('.next-media-poster') as HTMLElement;
+            expect(poster.style.backgroundImage).toContain('thumb.jpg');
+
+            // go-next link points to next url
+            const link = root.querySelector('.go-next a') as HTMLAnchorElement;
+            expect(link.getAttribute('href')).toBe('/next-url');
+        });
+
+        test('setVideoJsPlayerElem marks player with vjs-mediacms-has-up-next-view class', () => {
+            const v = new UpNextLoaderView(makeNextItem());
+            const player = document.createElement('div');
+
+            v.setVideoJsPlayerElem(player);
+
+            expect(addClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-has-up-next-view');
+            expect(v.vjsPlayerElem).toBe(player);
+        });
+
+        test('startTimer shows view, registers scroll, and navigates after 10s', () => {
+            const next = makeNextItem();
+            const v = new UpNextLoaderView(next);
+            const player = document.createElement('div');
+
+            v.setVideoJsPlayerElem(player);
+            v.startTimer();
+
+            expect(removeClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-up-next-hidden');
+            expect(removeClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-canceled-next');
+        });
+
+        test('cancelTimer clears timeout, stops scroll, and marks canceled', () => {
+            const v = new UpNextLoaderView(makeNextItem());
+            const player = document.createElement('div');
+
+            v.setVideoJsPlayerElem(player);
+
+            v.startTimer();
+            v.cancelTimer();
+
+            expect(addClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-canceled-next');
+        });
+
+        test('Cancel button click hides the view and cancels timer', () => {
+            const v = new UpNextLoaderView(makeNextItem());
+            const player = document.createElement('div');
+            v.setVideoJsPlayerElem(player);
+
+            v.startTimer();
+            const root = v.html();
+            const cancelBtn = root.querySelector('.up-next-cancel button') as HTMLButtonElement;
+            cancelBtn.click();
+
+            expect(addClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-canceled-next');
+        });
+
+        test('showTimerView shows or starts timer based on flag', () => {
+            const v = new UpNextLoaderView(makeNextItem());
+            const player = document.createElement('div');
+            v.setVideoJsPlayerElem(player);
+
+            // beginTimer=false -> just show view
+            v.showTimerView(false);
+            expect(removeClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-up-next-hidden');
+
+            // beginTimer=true -> starts timer
+            v.showTimerView(true);
+            expect(removeClassname).toHaveBeenCalledWith(player, 'vjs-mediacms-canceled-next');
+        });
+    });
+});

frontend/tests/utils/hooks/useBulkActions.test.tsx

@@ -0,0 +1,749 @@
+import React from 'react';
+import { render, fireEvent, act } from '@testing-library/react';
+import { useBulkActions } from '../../../src/static/js/utils/hooks/useBulkActions';
+
+// Mock translateString to return the input for easier assertions
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    translateString: (s: string) => s,
+}));
+
+// Component that exposes hook state/handlers to DOM for testing
+function HookConsumer() {
+    const hook = useBulkActions();
+
+    return (
+        <div>
+            <div data-testid="selected-count">{Array.from(hook.selectedMedia).length}</div>
+            <div data-testid="available-count">{hook.availableMediaIds.length}</div>
+            <div data-testid="show-confirm">{String(hook.showConfirmModal)}</div>
+            <div data-testid="confirm-message">{hook.confirmMessage}</div>
+            <div data-testid="list-key">{hook.listKey}</div>
+            <div data-testid="notification-message">{hook.notificationMessage}</div>
+            <div data-testid="show-notification">{String(hook.showNotification)}</div>
+
+            {/* @todo: It doesn't used */}
+            {/* <div data-testid="notification-type">{hook.notificationType}</div> */}
+
+            <div data-testid="show-permission">{String(hook.showPermissionModal)}</div>
+            <div data-testid="permission-type">{hook.permissionType || ''}</div>
+            <div data-testid="show-playlist">{String(hook.showPlaylistModal)}</div>
+            <div data-testid="show-change-owner">{String(hook.showChangeOwnerModal)}</div>
+            <div data-testid="show-publish-state">{String(hook.showPublishStateModal)}</div>
+            <div data-testid="show-category">{String(hook.showCategoryModal)}</div>
+            <div data-testid="show-tag">{String(hook.showTagModal)}</div>
+
+            <button data-testid="btn-handle-media-select" onClick={() => hook.handleMediaSelection('m1', true)} />
+            <button data-testid="btn-handle-media-deselect" onClick={() => hook.handleMediaSelection('m1', false)} />
+            <button
+                data-testid="btn-handle-items-update"
+                onClick={() => hook.handleItemsUpdate([{ id: 'a' }, { uid: 'b' }, { friendly_token: 'c' }])}
+            />
+            <button data-testid="btn-select-all" onClick={() => hook.handleSelectAll()} />
+            <button data-testid="btn-deselect-all" onClick={() => hook.handleDeselectAll()} />
+            <button data-testid="btn-clear-selection" onClick={() => hook.clearSelection()} />
+            <button data-testid="btn-clear-refresh" onClick={() => hook.clearSelectionAndRefresh()} />
+
+            <button data-testid="btn-bulk-delete" onClick={() => hook.handleBulkAction('delete-media')} />
+            <button data-testid="btn-bulk-enable-comments" onClick={() => hook.handleBulkAction('enable-comments')} />
+            <button data-testid="btn-bulk-disable-comments" onClick={() => hook.handleBulkAction('disable-comments')} />
+            <button data-testid="btn-bulk-enable-download" onClick={() => hook.handleBulkAction('enable-download')} />
+            <button data-testid="btn-bulk-disable-download" onClick={() => hook.handleBulkAction('disable-download')} />
+            <button data-testid="btn-bulk-copy" onClick={() => hook.handleBulkAction('copy-media')} />
+            <button data-testid="btn-bulk-perm-viewer" onClick={() => hook.handleBulkAction('add-remove-coviewers')} />
+            <button data-testid="btn-bulk-perm-editor" onClick={() => hook.handleBulkAction('add-remove-coeditors')} />
+            <button data-testid="btn-bulk-perm-owner" onClick={() => hook.handleBulkAction('add-remove-coowners')} />
+            <button data-testid="btn-bulk-playlist" onClick={() => hook.handleBulkAction('add-remove-playlist')} />
+            <button data-testid="btn-bulk-change-owner" onClick={() => hook.handleBulkAction('change-owner')} />
+            <button data-testid="btn-bulk-publish" onClick={() => hook.handleBulkAction('publish-state')} />
+            <button data-testid="btn-bulk-category" onClick={() => hook.handleBulkAction('add-remove-category')} />
+            <button data-testid="btn-bulk-tag" onClick={() => hook.handleBulkAction('add-remove-tags')} />
+            <button data-testid="btn-bulk-unknown" onClick={() => hook.handleBulkAction('unknown-action')} />
+
+            <button data-testid="btn-confirm-proceed" onClick={() => hook.handleConfirmProceed()} />
+            <button data-testid="btn-confirm-cancel" onClick={() => hook.handleConfirmCancel()} />
+            <button data-testid="btn-perm-cancel" onClick={() => hook.handlePermissionModalCancel()} />
+
+            <button data-testid="btn-perm-success" onClick={() => hook.handlePermissionModalSuccess('perm ok')} />
+            <button data-testid="btn-perm-error" onClick={() => hook.handlePermissionModalError('perm err')} />
+            <button data-testid="btn-playlist-cancel" onClick={() => hook.handlePlaylistModalCancel()} />
+
+            <button data-testid="btn-playlist-success" onClick={() => hook.handlePlaylistModalSuccess('pl ok')} />
+            <button data-testid="btn-playlist-error" onClick={() => hook.handlePlaylistModalError('pl err')} />
+            <button data-testid="btn-change-owner-cancel" onClick={() => hook.handleChangeOwnerModalCancel()} />
+
+            <button
+                data-testid="btn-change-owner-success"
+                onClick={() => hook.handleChangeOwnerModalSuccess('owner ok')}
+            />
+            <button
+                data-testid="btn-change-owner-error"
+                onClick={() => hook.handleChangeOwnerModalError('owner err')}
+            />
+            <button data-testid="btn-publish-cancel" onClick={() => hook.handlePublishStateModalCancel()} />
+
+            <button data-testid="btn-publish-success" onClick={() => hook.handlePublishStateModalSuccess('pub ok')} />
+            <button data-testid="btn-publish-error" onClick={() => hook.handlePublishStateModalError('pub err')} />
+            <button data-testid="btn-category-cancel" onClick={() => hook.handleCategoryModalCancel()} />
+
+            <button data-testid="btn-category-success" onClick={() => hook.handleCategoryModalSuccess('cat ok')} />
+            <button data-testid="btn-category-error" onClick={() => hook.handleCategoryModalError('cat err')} />
+            <button data-testid="btn-tag-cancel" onClick={() => hook.handleTagModalCancel()} />
+
+            <button data-testid="btn-tag-success" onClick={() => hook.handleTagModalSuccess('tag ok')} />
+            <button data-testid="btn-tag-error" onClick={() => hook.handleTagModalError('tag err')} />
+
+            <div data-testid="csrf">{String(hook.getCsrfToken())}</div>
+        </div>
+    );
+}
+
+describe('useBulkActions', () => {
+    beforeEach(() => {
+        jest.clearAllMocks();
+
+        document.cookie.split(';').forEach((c) => {
+            document.cookie = c.replace(/^ +/, '').replace(/=.*/, '=;expires=' + new Date().toUTCString() + ';path=/');
+        });
+
+        global.fetch = jest.fn();
+
+        jest.useFakeTimers();
+    });
+
+    afterEach(() => {
+        jest.useRealTimers();
+    });
+
+    describe('Utility Functions', () => {
+        test('getCsrfToken reads csrftoken from cookies', () => {
+            document.cookie = 'csrftoken=abc123';
+            const { getByTestId } = render(<HookConsumer />);
+            expect(getByTestId('csrf').textContent).toBe('abc123');
+        });
+
+        test('getCsrfToken returns null when csrftoken is not present', () => {
+            // No cookie set, should return null
+            const { getByTestId } = render(<HookConsumer />);
+            expect(getByTestId('csrf').textContent).toBe('null');
+        });
+
+        test('getCsrfToken returns null when document.cookie is empty', () => {
+            // Even if we try to set empty cookie, it should return null if no csrftoken
+            const { getByTestId } = render(<HookConsumer />);
+            expect(getByTestId('csrf').textContent).toBe('null');
+        });
+    });
+
+    describe('Selection Management', () => {
+        test('handleMediaSelection toggles selected media', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            expect(getByTestId('selected-count').textContent).toBe('1');
+
+            fireEvent.click(getByTestId('btn-handle-media-deselect'));
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('handleItemsUpdate extracts ids correctly from items with different id types', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-items-update'));
+            expect(getByTestId('available-count').textContent).toBe('3');
+        });
+
+        test('handleSelectAll selects all available items', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-items-update'));
+            fireEvent.click(getByTestId('btn-select-all'));
+            expect(getByTestId('selected-count').textContent).toBe('3');
+        });
+
+        test('handleDeselectAll deselects all items', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-items-update'));
+            fireEvent.click(getByTestId('btn-select-all'));
+            fireEvent.click(getByTestId('btn-deselect-all'));
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('clearSelection clears all selected media', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            expect(getByTestId('selected-count').textContent).toBe('1');
+
+            fireEvent.click(getByTestId('btn-clear-selection'));
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('clearSelectionAndRefresh clears selection and increments listKey', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-items-update'));
+            fireEvent.click(getByTestId('btn-select-all'));
+            expect(getByTestId('list-key').textContent).toBe('0');
+
+            fireEvent.click(getByTestId('btn-clear-refresh'));
+            expect(getByTestId('selected-count').textContent).toBe('0');
+            expect(getByTestId('list-key').textContent).toBe('1');
+        });
+    });
+
+    describe('Bulk Actions - Modal Opening', () => {
+        test('handleBulkAction does nothing when no selection', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+            expect(getByTestId('show-confirm').textContent).toBe('false');
+        });
+
+        test('handleBulkAction opens confirm modal for delete, enable/disable comments and download, copy', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-enable-comments'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-disable-comments'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-enable-download'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-disable-download'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-copy'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+        });
+
+        test('handleBulkAction opens permission modals with correct types', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+
+            fireEvent.click(getByTestId('btn-bulk-perm-viewer'));
+            expect(getByTestId('show-permission').textContent).toBe('true');
+            expect(getByTestId('permission-type').textContent).toBe('viewer');
+
+            fireEvent.click(getByTestId('btn-bulk-perm-editor'));
+            expect(getByTestId('permission-type').textContent).toBe('editor');
+
+            fireEvent.click(getByTestId('btn-bulk-perm-owner'));
+            expect(getByTestId('permission-type').textContent).toBe('owner');
+        });
+
+        test('handleBulkAction opens other modals', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+
+            fireEvent.click(getByTestId('btn-bulk-playlist'));
+            expect(getByTestId('show-playlist').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-change-owner'));
+            expect(getByTestId('show-change-owner').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-publish'));
+            expect(getByTestId('show-publish-state').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-category'));
+            expect(getByTestId('show-category').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-bulk-tag'));
+            expect(getByTestId('show-tag').textContent).toBe('true');
+        });
+
+        test('handleBulkAction with unknown action does nothing', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-unknown'));
+            expect(getByTestId('show-confirm').textContent).toBe('false');
+            expect(getByTestId('show-permission').textContent).toBe('false');
+        });
+    });
+
+    describe('Confirm Modal Handlers', () => {
+        test('handleConfirmCancel closes confirm modal and resets state', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+            expect(getByTestId('show-confirm').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-confirm-cancel'));
+            expect(getByTestId('show-confirm').textContent).toBe('false');
+            expect(getByTestId('confirm-message').textContent).toBe('');
+        });
+    });
+
+    describe('Delete Media Execution', () => {
+        test('executeDeleteMedia success with notification', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('The media was deleted successfully');
+            expect(getByTestId('show-notification').textContent).toBe('true');
+
+            act(() => {
+                jest.advanceTimersByTime(5000);
+            });
+            expect(getByTestId('show-notification').textContent).toBe('false');
+        });
+
+        test('executeDeleteMedia handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to delete media');
+        });
+
+        test('executeDeleteMedia handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-delete'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to delete media');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+    });
+
+    describe('Comments Management Execution', () => {
+        test('executeEnableComments success', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Successfully Enabled comments');
+        });
+
+        test('executeEnableComments handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to enable comments');
+        });
+
+        test('executeEnableComments handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to enable comments');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('executeDisableComments success', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Successfully Disabled comments');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('executeDisableComments handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to disable comments');
+        });
+
+        test('executeDisableComments handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-comments'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to disable comments');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+    });
+
+    describe('Download Management Execution', () => {
+        test('executeEnableDownload success', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Successfully Enabled Download');
+        });
+
+        test('executeEnableDownload handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to enable download');
+        });
+
+        test('executeEnableDownload handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-enable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to enable download');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('executeDisableDownload success', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Successfully Disabled Download');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+
+        test('executeDisableDownload handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to disable download');
+        });
+
+        test('executeDisableDownload handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-disable-download'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to disable download');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+    });
+
+    describe('Copy Media Execution', () => {
+        test('executeCopyMedia success', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: true, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-copy'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Successfully Copied');
+        });
+
+        test('executeCopyMedia handles response.ok = false', async () => {
+            (global.fetch as jest.Mock).mockResolvedValue({ ok: false, json: () => Promise.resolve({}) });
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-copy'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to copy media');
+        });
+
+        test('executeCopyMedia handles fetch rejection exception', async () => {
+            (global.fetch as jest.Mock).mockRejectedValue(new Error('Network error'));
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-copy'));
+
+            await act(async () => {
+                fireEvent.click(getByTestId('btn-confirm-proceed'));
+                await Promise.resolve();
+            });
+
+            expect(getByTestId('notification-message').textContent).toContain('Failed to copy media');
+            expect(getByTestId('selected-count').textContent).toBe('0');
+        });
+    });
+
+    describe('Permission Modal Handlers', () => {
+        test('handlePermissionModalCancel closes permission modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-perm-viewer'));
+            expect(getByTestId('show-permission').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-perm-cancel'));
+            expect(getByTestId('show-permission').textContent).toBe('false');
+            expect(getByTestId('permission-type').textContent).toBe('');
+        });
+
+        test('handlePermissionModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-perm-success'));
+            expect(getByTestId('notification-message').textContent).toBe('perm ok');
+            expect(getByTestId('show-permission').textContent).toBe('false');
+        });
+
+        test('handlePermissionModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-perm-error'));
+            expect(getByTestId('notification-message').textContent).toBe('perm err');
+            expect(getByTestId('show-permission').textContent).toBe('false');
+        });
+    });
+
+    describe('Playlist Modal Handlers', () => {
+        test('handlePlaylistModalCancel closes playlist modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-playlist'));
+            expect(getByTestId('show-playlist').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-playlist-cancel'));
+            expect(getByTestId('show-playlist').textContent).toBe('false');
+        });
+
+        test('handlePlaylistModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-playlist-success'));
+            expect(getByTestId('notification-message').textContent).toBe('pl ok');
+            expect(getByTestId('show-playlist').textContent).toBe('false');
+        });
+
+        test('handlePlaylistModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-playlist-error'));
+            expect(getByTestId('notification-message').textContent).toBe('pl err');
+            expect(getByTestId('show-playlist').textContent).toBe('false');
+        });
+    });
+
+    describe('Change Owner Modal Handlers', () => {
+        test('handleChangeOwnerModalCancel closes change owner modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-change-owner'));
+            expect(getByTestId('show-change-owner').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-change-owner-cancel'));
+            expect(getByTestId('show-change-owner').textContent).toBe('false');
+        });
+
+        test('handleChangeOwnerModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-change-owner-success'));
+            expect(getByTestId('notification-message').textContent).toBe('owner ok');
+            expect(getByTestId('show-change-owner').textContent).toBe('false');
+        });
+
+        test('handleChangeOwnerModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-change-owner-error'));
+            expect(getByTestId('notification-message').textContent).toBe('owner err');
+            expect(getByTestId('show-change-owner').textContent).toBe('false');
+        });
+    });
+
+    describe('Publish State Modal Handlers', () => {
+        test('handlePublishStateModalCancel closes publish state modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-publish'));
+            expect(getByTestId('show-publish-state').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-publish-cancel'));
+            expect(getByTestId('show-publish-state').textContent).toBe('false');
+        });
+
+        test('handlePublishStateModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-publish-success'));
+            expect(getByTestId('notification-message').textContent).toBe('pub ok');
+            expect(getByTestId('show-publish-state').textContent).toBe('false');
+        });
+
+        test('handlePublishStateModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-publish-error'));
+            expect(getByTestId('notification-message').textContent).toBe('pub err');
+            expect(getByTestId('show-publish-state').textContent).toBe('false');
+        });
+    });
+
+    describe('Category Modal Handlers', () => {
+        test('handleCategoryModalCancel closes category modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-category'));
+            expect(getByTestId('show-category').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-category-cancel'));
+            expect(getByTestId('show-category').textContent).toBe('false');
+        });
+
+        test('handleCategoryModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-category-success'));
+            expect(getByTestId('notification-message').textContent).toBe('cat ok');
+            expect(getByTestId('show-category').textContent).toBe('false');
+        });
+
+        test('handleCategoryModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-category-error'));
+            expect(getByTestId('notification-message').textContent).toBe('cat err');
+            expect(getByTestId('show-category').textContent).toBe('false');
+        });
+    });
+
+    describe('Tag Modal Handlers', () => {
+        test('handleTagModalCancel closes tag modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-handle-media-select'));
+            fireEvent.click(getByTestId('btn-bulk-tag'));
+            expect(getByTestId('show-tag').textContent).toBe('true');
+
+            fireEvent.click(getByTestId('btn-tag-cancel'));
+            expect(getByTestId('show-tag').textContent).toBe('false');
+        });
+
+        test('handleTagModalSuccess shows notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-tag-success'));
+            expect(getByTestId('notification-message').textContent).toBe('tag ok');
+            expect(getByTestId('show-tag').textContent).toBe('false');
+        });
+
+        test('handleTagModalError shows error notification and closes modal', () => {
+            const { getByTestId } = render(<HookConsumer />);
+
+            fireEvent.click(getByTestId('btn-tag-error'));
+            expect(getByTestId('notification-message').textContent).toBe('tag err');
+            expect(getByTestId('show-tag').textContent).toBe('false');
+        });
+    });
+});

frontend/tests/utils/hooks/useItem.test.tsx

@@ -0,0 +1,380 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import { useItem } from '../../../src/static/js/utils/hooks/useItem';
+
+// Mock the item components
+jest.mock('../../../src/static/js/components/list-item/includes/items', () => ({
+    ItemDescription: ({ description }: { description: string }) => (
+        <div data-testid="item-description">{description}</div>
+    ),
+    ItemMain: ({ children }: { children: React.ReactNode }) => <div data-testid="item-main">{children}</div>,
+    ItemMainInLink: ({ children, link, title }: { children: React.ReactNode; link: string; title: string }) => (
+        <div data-testid="item-main-in-link" data-link={link} data-title={title}>
+            {children}
+        </div>
+    ),
+    ItemTitle: ({ title, ariaLabel }: { title: string; ariaLabel: string }) => (
+        <h3 data-testid="item-title" data-aria-label={ariaLabel}>
+            {title}
+        </h3>
+    ),
+    ItemTitleLink: ({ title, link, ariaLabel }: { title: string; link: string; ariaLabel: string }) => (
+        <h3 data-testid="item-title-link" data-link={link} data-aria-label={ariaLabel}>
+            {title}
+        </h3>
+    ),
+}));
+
+// Mock PageStore
+jest.mock('../../../src/static/js/utils/stores/PageStore.js', () => ({
+    __esModule: true,
+    default: {
+        get: (key: string) => (key === 'config-site' ? { url: 'https://example.com' } : null),
+    },
+}));
+
+// HookConsumer component to test the hook
+function HookConsumer(props: any) {
+    const { titleComponent, descriptionComponent, thumbnailUrl, UnderThumbWrapper } = useItem(props);
+
+    return (
+        <div>
+            <div data-testid="title">{titleComponent()}</div>
+            <div data-testid="description">{descriptionComponent()}</div>
+            <div data-testid="thumbnail-url">{thumbnailUrl || 'null'}</div>
+            <div data-testid="wrapper-type">{(UnderThumbWrapper as any).name}</div>
+            <div data-testid="wrapper-component">
+                <div>Wrapper content</div>
+            </div>
+        </div>
+    );
+}
+
+// Wrapper consumer to test wrapper selection
+function WrapperTest(props: any) {
+    const { UnderThumbWrapper } = useItem(props);
+
+    return (
+        <UnderThumbWrapper link={props.link} title={props.title} data-testid="wrapper-test">
+            <span data-testid="wrapper-content">Content</span>
+        </UnderThumbWrapper>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useItem', () => {
+        beforeEach(() => {
+            jest.clearAllMocks();
+        });
+
+        describe('titleComponent Rendering', () => {
+            test('Renders ItemTitle when singleLinkContent is true', () => {
+                const { getByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        singleLinkContent={true}
+                    />
+                );
+
+                expect(getByTestId('title').querySelector('[data-testid="item-title"]')).toBeTruthy();
+                expect(getByTestId('title').querySelector('[data-testid="item-title-link"]')).toBeFalsy();
+            });
+
+            test('Renders ItemTitleLink when singleLinkContent is false', () => {
+                const { getByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        singleLinkContent={false}
+                    />
+                );
+
+                expect(getByTestId('title').querySelector('[data-testid="item-title"]')).toBeFalsy();
+                expect(getByTestId('title').querySelector('[data-testid="item-title-link"]')).toBeTruthy();
+            });
+
+            test('Renders with default link when singleLinkContent is not provided', () => {
+                const { getByTestId } = render(
+                    <HookConsumer title="Test Title" description="Test Description" link="/media/test" thumbnail="" />
+                );
+
+                // Default is false for singleLinkContent
+                expect(getByTestId('title').querySelector('[data-testid="item-title-link"]')).toBeTruthy();
+            });
+        });
+
+        describe('descriptionComponent Rendering', () => {
+            test('Renders single ItemDescription when hasMediaViewer is false', () => {
+                const { getByTestId, queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="My Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        hasMediaViewer={false}
+                    />
+                );
+
+                const descriptions = queryAllByTestId('item-description');
+                expect(descriptions.length).toBe(1);
+                expect(descriptions[0].textContent).toBe('My Description');
+            });
+
+            test('Renders single ItemDescription when hasMediaViewerDescr is false', () => {
+                const { getByTestId, queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="My Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        hasMediaViewer={true}
+                        hasMediaViewerDescr={false}
+                    />
+                );
+
+                const descriptions = queryAllByTestId('item-description');
+                expect(descriptions.length).toBe(1);
+                expect(descriptions[0].textContent).toBe('My Description');
+            });
+
+            test('Renders two ItemDescriptions when hasMediaViewer and hasMediaViewerDescr are both true', () => {
+                const { queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Main Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        hasMediaViewer={true}
+                        hasMediaViewerDescr={true}
+                        meta_description="Meta Description"
+                    />
+                );
+
+                const descriptions = queryAllByTestId('item-description');
+                expect(descriptions.length).toBe(2);
+                expect(descriptions[0].textContent).toBe('Meta Description');
+                expect(descriptions[1].textContent).toBe('Main Description');
+            });
+
+            test('Trims description text', () => {
+                const { queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="   Description with spaces   "
+                        link="https://example.com"
+                        thumbnail=""
+                    />
+                );
+
+                expect(queryAllByTestId('item-description')[0].textContent).toBe('Description with spaces');
+            });
+
+            test('Trims meta_description text', () => {
+                const { queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Main Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        hasMediaViewer={true}
+                        hasMediaViewerDescr={true}
+                        meta_description="   Meta with spaces   "
+                    />
+                );
+
+                expect(queryAllByTestId('item-description')[0].textContent).toBe('Meta with spaces');
+            });
+        });
+
+        describe('thumbnailUrl', () => {
+            test('Returns null when thumbnail is empty string', () => {
+                const { getByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                    />
+                );
+
+                expect(getByTestId('thumbnail-url').textContent).toBe('null');
+            });
+
+            test('Returns formatted URL when thumbnail has value', () => {
+                const { getByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail="/media/thumbnail.jpg"
+                    />
+                );
+
+                expect(getByTestId('thumbnail-url').textContent).toBe('https://example.com/media/thumbnail.jpg');
+            });
+
+            test('Handles absolute URLs as thumbnails', () => {
+                const { getByTestId } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail="https://cdn.example.com/image.jpg"
+                    />
+                );
+
+                // formatInnerLink should preserve absolute URLs
+                expect(getByTestId('thumbnail-url').textContent).toBe('https://cdn.example.com/image.jpg');
+            });
+        });
+
+        describe('UnderThumbWrapper', () => {
+            test('Uses ItemMainInLink when singleLinkContent is true', () => {
+                const { getByTestId } = render(
+                    <WrapperTest
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        singleLinkContent={true}
+                    />
+                );
+
+                // When singleLinkContent is true, UnderThumbWrapper should be ItemMainInLink
+                expect(getByTestId('item-main-in-link')).toBeTruthy();
+                expect(getByTestId('item-main-in-link').getAttribute('data-link')).toBe('https://example.com');
+                expect(getByTestId('item-main-in-link').getAttribute('data-title')).toBe('Test Title');
+            });
+
+            test('Uses ItemMain when singleLinkContent is false', () => {
+                const { getByTestId } = render(
+                    <WrapperTest
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        singleLinkContent={false}
+                    />
+                );
+
+                // When singleLinkContent is false, UnderThumbWrapper should be ItemMain
+                expect(getByTestId('item-main')).toBeTruthy();
+            });
+
+            test('Uses ItemMain by default when singleLinkContent is not provided', () => {
+                const { getByTestId } = render(
+                    <WrapperTest
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                    />
+                );
+
+                // Default is singleLinkContent=false, so ItemMain
+                expect(getByTestId('item-main')).toBeTruthy();
+            });
+        });
+
+        describe('onMount callback', () => {
+            test('Calls onMount callback when component mounts', () => {
+                const onMountCallback = jest.fn();
+
+                render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        onMount={onMountCallback}
+                    />
+                );
+
+                expect(onMountCallback).toHaveBeenCalledTimes(1);
+            });
+
+            test('Calls onMount only once on initial mount', () => {
+                const onMountCallback = jest.fn();
+
+                const { rerender } = render(
+                    <HookConsumer
+                        title="Test Title"
+                        description="Test Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        onMount={onMountCallback}
+                    />
+                );
+
+                expect(onMountCallback).toHaveBeenCalledTimes(1);
+
+                rerender(
+                    <HookConsumer
+                        title="Updated Title"
+                        description="Updated Description"
+                        link="https://example.com"
+                        thumbnail=""
+                        onMount={onMountCallback}
+                    />
+                );
+
+                // Should still be called only once (useEffect with empty dependency array)
+                expect(onMountCallback).toHaveBeenCalledTimes(1);
+            });
+        });
+
+        describe('Integration tests', () => {
+            test('Complete rendering with all props', () => {
+                const onMount = jest.fn();
+                const { getByTestId, queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Complete Test"
+                        description="Complete Description"
+                        link="/media/complete"
+                        thumbnail="/img/thumb.jpg"
+                        type="media"
+                        hasMediaViewer={true}
+                        hasMediaViewerDescr={true}
+                        meta_description="Complete Meta"
+                        singleLinkContent={false}
+                        onMount={onMount}
+                    />
+                );
+
+                const descriptions = queryAllByTestId('item-description');
+                expect(descriptions.length).toBe(2);
+                expect(onMount).toHaveBeenCalledTimes(1);
+                expect(getByTestId('thumbnail-url').textContent).toBe('https://example.com/img/thumb.jpg');
+            });
+
+            test('Minimal props required', () => {
+                const { getByTestId } = render(
+                    <HookConsumer title="Title" description="Description" link="/link" thumbnail="" />
+                );
+
+                expect(getByTestId('title')).toBeTruthy();
+                expect(getByTestId('description')).toBeTruthy();
+                expect(getByTestId('thumbnail-url').textContent).toBe('null');
+            });
+
+            test('Renders with special characters in title and description', () => {
+                const { queryAllByTestId } = render(
+                    <HookConsumer
+                        title="Title with & < > special chars"
+                        description={`Description with 'quotes' and "double quotes"`}
+                        link="/media"
+                        thumbnail=""
+                    />
+                );
+
+                const descriptions = queryAllByTestId('item-description');
+                expect(descriptions[0].textContent).toContain('Description with');
+            });
+        });
+    });
+});

frontend/tests/utils/hooks/useItemList.test.tsx

@@ -0,0 +1,124 @@
+import React, { createRef } from 'react';
+import { render } from '@testing-library/react';
+
+// Stub style imports used by the hook so Jest doesn't try to parse SCSS
+jest.mock('../../../src/static/js/components/item-list/ItemList.scss', () => ({}), { virtual: true });
+
+jest.mock('../../../src/static/js/components/item-list/includes/itemLists/initItemsList', () => ({
+    __esModule: true,
+    default: jest.fn((_lists: any[]) => [{ appendItems: jest.fn() }]),
+}));
+
+import initItemsList from '../../../src/static/js/components/item-list/includes/itemLists/initItemsList';
+import { useItemList } from '../../../src/static/js/utils/hooks/useItemList';
+
+function HookConsumer(props: any) {
+    const listRef = createRef<HTMLDivElement>();
+    const [items, countedItems, listHandler, setListHandler, onItemsLoad, onItemsCount, addListItems] = useItemList(
+        props,
+        listRef
+    ) as any[];
+
+    return (
+        <div>
+            <div ref={listRef} data-testid="list" className="list">
+                {(items as any[]).map((_, idx) => (
+                    <div key={idx} className="item" data-testid={`itm-${idx}`} />
+                ))}
+            </div>
+            <div data-testid="counted">{String(countedItems)}</div>
+            <div data-testid="len">{items.length}</div>
+            <button data-testid="load-call" onClick={() => onItemsLoad([1, 2])} />
+            <button data-testid="count-call" onClick={() => onItemsCount(5)} />
+            <button data-testid="add-call" onClick={() => addListItems()} />
+            <button data-testid="set-handler" onClick={() => setListHandler({ foo: 'bar' })} />
+            <div data-testid="has-handler">{listHandler ? 'yes' : 'no'}</div>
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useItemList', () => {
+        beforeEach(() => {
+            jest.clearAllMocks();
+        });
+
+        test('Initial state: empty items and not counted', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            expect(getByTestId('counted').textContent).toBe('false');
+            expect(getByTestId('len').textContent).toBe('0');
+            expect(getByTestId('has-handler').textContent).toBe('no');
+        });
+
+        test('onItemsLoad updates items and renders item nodes', () => {
+            const { getByTestId, getByTestId: $ } = render(<HookConsumer />);
+            (getByTestId('load-call') as HTMLButtonElement).click();
+            expect(getByTestId('len').textContent).toBe('2');
+            expect($('itm-0')).toBeTruthy();
+            expect($('itm-1')).toBeTruthy();
+        });
+
+        test('onItemsCount marks countedItems true and triggers callback if provided', () => {
+            const cb = jest.fn();
+            const { getByTestId } = render(<HookConsumer itemsCountCallback={cb} />);
+            (getByTestId('count-call') as HTMLButtonElement).click();
+            expect(getByTestId('counted').textContent).toBe('true');
+            expect(cb).toHaveBeenCalledWith(5);
+        });
+
+        test('addListItems initializes itemsListInstance and appends only new items', () => {
+            const mockInit = initItemsList as jest.Mock;
+
+            const { getByTestId, rerender } = render(<HookConsumer />);
+
+            const itemsLen = getByTestId('len') as HTMLDivElement;
+            const addBtn = getByTestId('add-call') as HTMLButtonElement;
+            const loadBtn = getByTestId('load-call') as HTMLButtonElement;
+
+            expect(itemsLen.textContent).toBe('0');
+            loadBtn.click();
+            expect(itemsLen.textContent).toBe('2');
+
+            expect(mockInit).toHaveBeenCalledTimes(0);
+            addBtn.click();
+            expect(mockInit).toHaveBeenCalledTimes(1);
+
+            expect(mockInit.mock.results[0].value[0].appendItems).toHaveBeenCalledTimes(2);
+
+            loadBtn.click();
+            expect(itemsLen.textContent).toBe('2');
+
+            addBtn.click();
+            expect(mockInit).toHaveBeenCalledTimes(2);
+            expect(mockInit.mock.results[1].value[0].appendItems).toHaveBeenCalledTimes(2);
+
+            rerender(<HookConsumer />);
+
+            addBtn.click();
+            expect(mockInit).toHaveBeenCalledTimes(3);
+            expect(mockInit.mock.results[2].value[0].appendItems).toHaveBeenCalledTimes(2);
+        });
+
+        test('addListItems does nothing when there are no .item elements in the ref', () => {
+            // Render, do not call onItemsLoad, then call addListItems
+            const mockInit = initItemsList as jest.Mock;
+            const { getByTestId } = render(<HookConsumer />);
+            (getByTestId('add-call') as HTMLButtonElement).click();
+            expect(mockInit).not.toHaveBeenCalled();
+        });
+
+        test('itemsLoadCallback is invoked when items change', () => {
+            const itemsLoadCallback = jest.fn();
+            const { getByTestId } = render(<HookConsumer itemsLoadCallback={itemsLoadCallback} />);
+            (getByTestId('load-call') as HTMLButtonElement).click();
+            expect(itemsLoadCallback).toHaveBeenCalledTimes(1);
+        });
+
+        test('setListHandler updates listHandler', () => {
+            const { getByTestId } = render(<HookConsumer />);
+            expect(getByTestId('has-handler').textContent).toBe('no');
+            (getByTestId('set-handler') as HTMLButtonElement).click();
+            expect(getByTestId('has-handler').textContent).toBe('yes');
+        });
+    });
+});

frontend/tests/utils/hooks/useItemListInlineSlider.test.tsx

@@ -0,0 +1,346 @@
+import React from 'react';
+import { render, fireEvent, act } from '@testing-library/react';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers/', () => ({
+    addClassname: jest.fn(),
+    removeClassname: jest.fn(),
+}));
+
+let mockListHandler: any;
+let mockInlineSliderInstance: any;
+let addListItemsSpy = jest.fn();
+
+jest.mock('../../../src/static/js/utils/hooks/useItemList', () => ({
+    useItemList: (props: any, _ref: any) => {
+        mockListHandler = {
+            loadItems: jest.fn(),
+            totalPages: jest.fn().mockReturnValue(props.__totalPages ?? 1),
+            loadedAllItems: jest.fn().mockReturnValue(Boolean(props.__loadedAll ?? true)),
+        };
+        return [
+            props.__items ?? [], // items
+            props.__countedItems ?? 0, // countedItems
+            mockListHandler, // listHandler
+            jest.fn(), // setListHandler
+            jest.fn(), // onItemsLoad
+            jest.fn(), // onItemsCount
+            addListItemsSpy, // addListItems
+        ];
+    },
+}));
+
+jest.mock('../../../src/static/js/components/item-list/includes/itemLists/ItemsInlineSlider', () =>
+    jest.fn().mockImplementation(() => {
+        mockInlineSliderInstance = {
+            updateDataStateOnResize: jest.fn(),
+            updateDataState: jest.fn(),
+            scrollToCurrentSlide: jest.fn(),
+            nextSlide: jest.fn(),
+            previousSlide: jest.fn(),
+            hasNextSlide: jest.fn().mockReturnValue(true),
+            hasPreviousSlide: jest.fn().mockReturnValue(true),
+            loadItemsToFit: jest.fn().mockReturnValue(false),
+            loadMoreItems: jest.fn().mockReturnValue(false),
+            itemsFit: jest.fn().mockReturnValue(3),
+        };
+        return mockInlineSliderInstance;
+    })
+);
+
+jest.mock('../../../src/static/js/components/_shared', () => ({
+    CircleIconButton: ({ children, onClick }: any) => (
+        <button data-testid="circle-icon-button" onClick={onClick}>
+            {children}
+        </button>
+    ),
+}));
+
+import { useItemListInlineSlider } from '../../../src/static/js/utils/hooks/useItemListInlineSlider';
+
+function HookConsumer(props: any) {
+    const tuple = useItemListInlineSlider(props);
+    const [
+        _items,
+        _countedItems,
+        _listHandler,
+        classname,
+        _setListHandler,
+        _onItemsCount,
+        _onItemsLoad,
+        _winResizeListener,
+        _sidebarVisibilityChangeListener,
+        itemsListWrapperRef,
+        _itemsListRef,
+        renderBeforeListWrap,
+        renderAfterListWrap,
+    ] = tuple as any;
+
+    return (
+        <div ref={itemsListWrapperRef}>
+            <div data-testid="class-list">{classname.list}</div>
+            <div data-testid="class-outer">{classname.listOuter}</div>
+            <div data-testid="render-before">{renderBeforeListWrap()}</div>
+            <div data-testid="render-after">{renderAfterListWrap()}</div>
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useItemListInlineSlider', () => {
+        beforeEach(() => {
+            addListItemsSpy = jest.fn();
+            mockInlineSliderInstance = null;
+        });
+
+        afterEach(() => {
+            jest.clearAllMocks();
+        });
+
+        test('Returns correct tuple of values from hook', () => {
+            const TestComponent = (props: any) => {
+                const tuple = useItemListInlineSlider(props);
+                return (
+                    <div>
+                        <div data-testid="tuple-length">{tuple.length}</div>
+                        <div data-testid="has-items">{tuple[0] ? 'yes' : 'no'}</div>
+                        <div data-testid="has-classname">{tuple[3] ? 'yes' : 'no'}</div>
+                        <div data-testid="has-listeners">{typeof tuple[7] === 'function' ? 'yes' : 'no'}</div>
+                    </div>
+                );
+            };
+
+            const { getByTestId } = render(<TestComponent __items={[1, 2, 3]} />);
+
+            expect(getByTestId('tuple-length').textContent).toBe('13');
+            expect(getByTestId('has-classname').textContent).toBe('yes');
+            expect(getByTestId('has-listeners').textContent).toBe('yes');
+        });
+
+        test('Computes classname.list and classname.listOuter with optional className prop', () => {
+            const { getByTestId, rerender } = render(<HookConsumer className=" extra " />);
+
+            expect(getByTestId('class-outer').textContent).toBe('items-list-outer list-inline list-slider  extra ');
+            expect(getByTestId('class-list').textContent).toBe('items-list');
+
+            rerender(<HookConsumer />);
+
+            expect(getByTestId('class-outer').textContent).toBe('items-list-outer list-inline list-slider');
+            expect(getByTestId('class-list').textContent).toBe('items-list');
+        });
+
+        test('Invokes addListItems when items change', () => {
+            const { rerender } = render(<HookConsumer __items={[]} />);
+            expect(addListItemsSpy).toHaveBeenCalledTimes(1);
+            rerender(<HookConsumer __items={[1]} />);
+            expect(addListItemsSpy).toHaveBeenCalledTimes(2);
+        });
+
+        test('nextSlide loads more items when loadMoreItems returns true and not all items loaded', () => {
+            const { getByTestId } = render(<HookConsumer __items={[1, 2, 3]} __loadedAll={false} />);
+
+            mockInlineSliderInstance.loadMoreItems.mockReturnValue(true);
+
+            const renderAfter = getByTestId('render-after');
+            const nextButton = renderAfter.querySelector('button[data-testid="circle-icon-button"]');
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+
+            fireEvent.click(nextButton!);
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+        });
+
+        test('nextSlide does not load items when all items already loaded', () => {
+            const { getByTestId } = render(<HookConsumer __items={[1, 2, 3]} __loadedAll={true} />);
+
+            mockInlineSliderInstance.loadMoreItems.mockReturnValue(false);
+
+            const renderAfter = getByTestId('render-after');
+            const nextButton = renderAfter.querySelector('button[data-testid="circle-icon-button"]');
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+
+            fireEvent.click(nextButton!);
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(2);
+        });
+
+        test('prevSlide calls inlineSlider.previousSlide and updates button view', () => {
+            const { getByTestId } = render(<HookConsumer __items={[1, 2, 3]} __loadedAll={false} />);
+
+            mockInlineSliderInstance.loadMoreItems.mockReturnValue(true);
+
+            const renderBefore = getByTestId('render-before');
+            const prevButton = renderBefore.querySelector('button[data-testid="circle-icon-button"]');
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+
+            fireEvent.click(prevButton!);
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(2);
+        });
+
+        test('prevSlide always scrolls to current slide regardless of item load state', () => {
+            const { getByTestId } = render(<HookConsumer __items={[1, 2, 3]} __loadedAll={true} />);
+
+            mockInlineSliderInstance.loadMoreItems.mockReturnValue(false);
+
+            const renderBefore = getByTestId('render-before');
+            const prevButton = renderBefore.querySelector('button[data-testid="circle-icon-button"]');
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+
+            fireEvent.click(prevButton!);
+
+            expect(mockListHandler.loadItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.loadMoreItems).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.nextSlide).toHaveBeenCalledTimes(0);
+            expect(mockInlineSliderInstance.previousSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.hasNextSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.hasPreviousSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(2);
+        });
+
+        test('Button state updates based on hasNextSlide and hasPreviousSlide', () => {
+            const { getByTestId, rerender } = render(<HookConsumer __items={[1, 2, 3]} />);
+
+            const renderBefore = getByTestId('render-before');
+            const renderAfter = getByTestId('render-after');
+
+            // Initially should show buttons (default mock returns true)
+            expect(renderBefore.querySelector('button')).toBeTruthy();
+            expect(renderAfter.querySelector('button')).toBeTruthy();
+
+            // Now set hasNextSlide and hasPreviousSlide to false
+            mockInlineSliderInstance.hasNextSlide.mockReturnValue(false);
+            mockInlineSliderInstance.hasPreviousSlide.mockReturnValue(false);
+
+            // Trigger re-render by changing items
+            rerender(<HookConsumer __items={[1, 2, 3, 4]} />);
+
+            // The next and previous buttons should not be rendered now
+            const newRenderAfter = getByTestId('render-after');
+            const newRenderBefore = getByTestId('render-before');
+            expect(newRenderAfter.querySelector('button')).toBeNull();
+            expect(newRenderBefore.querySelector('button')).toBeNull();
+        });
+
+        test('winResizeListener and sidebarVisibilityChangeListener are returned as callable functions', () => {
+            const TestComponentWithListeners = (props: any) => {
+                const tuple = useItemListInlineSlider(props);
+
+                const winResizeListener = tuple[7]; // winResizeListener
+                const sidebarListener = tuple[8]; // sidebarVisibilityChangeListener
+                const wrapperRef = tuple[9]; // itemsListWrapperRef
+
+                return (
+                    <div ref={wrapperRef as any} data-testid="wrapper">
+                        <button data-testid="trigger-resize" onClick={winResizeListener as any}>
+                            Trigger Resize
+                        </button>
+                        <button data-testid="trigger-sidebar" onClick={sidebarListener as any}>
+                            Trigger Sidebars
+                        </button>
+                    </div>
+                );
+            };
+
+            const { getByTestId } = render(<TestComponentWithListeners __items={[1, 2, 3]} />);
+
+            // Should not throw when called
+            const resizeButton = getByTestId('trigger-resize');
+            const sidebarButton = getByTestId('trigger-sidebar');
+
+            expect(() => fireEvent.click(resizeButton)).not.toThrow();
+            expect(() => fireEvent.click(sidebarButton)).not.toThrow();
+        });
+
+        test('winResizeListener updates resizeDate state triggering resize effect', () => {
+            const TestComponent = (props: any) => {
+                const tuple = useItemListInlineSlider(props) as any;
+                const winResizeListener = tuple[7];
+                const wrapperRef = tuple[9];
+
+                return (
+                    <div ref={wrapperRef} data-testid="wrapper">
+                        <button data-testid="trigger-resize" onClick={winResizeListener}>
+                            Trigger Resize
+                        </button>
+                    </div>
+                );
+            };
+
+            const { getByTestId } = render(<TestComponent __items={[1, 2, 3]} />);
+
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(1);
+            expect(mockInlineSliderInstance.updateDataStateOnResize).toHaveBeenCalledTimes(0);
+
+            jest.useFakeTimers();
+
+            fireEvent.click(getByTestId('trigger-resize'));
+
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(2);
+            expect(mockInlineSliderInstance.updateDataStateOnResize).toHaveBeenCalledTimes(1);
+
+            jest.advanceTimersByTime(200);
+
+            expect(mockInlineSliderInstance.scrollToCurrentSlide).toHaveBeenCalledTimes(3);
+            expect(mockInlineSliderInstance.updateDataStateOnResize).toHaveBeenCalledTimes(2);
+
+            jest.useRealTimers();
+        });
+    });
+});

frontend/tests/utils/hooks/useItemListLazyLoad.test.tsx

@@ -0,0 +1,190 @@
+import React from 'react';
+import { render, fireEvent, waitFor } from '@testing-library/react';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+let mockListHandler: any;
+let addListItemsSpy = jest.fn();
+const mockRemoveListener = jest.fn();
+
+jest.mock('../../../src/static/js/utils/hooks/useItemList', () => ({
+    useItemList: (props: any, _ref: any) => {
+        mockListHandler = {
+            loadItems: jest.fn(),
+            totalPages: jest.fn().mockReturnValue(props.__totalPages ?? 1),
+            loadedAllItems: jest.fn().mockReturnValue(Boolean(props.__loadedAll ?? true)),
+        };
+        return [
+            props.__items ?? [], // items
+            props.__countedItems ?? 0, // countedItems
+            mockListHandler, // listHandler
+            jest.fn(), // setListHandler
+            jest.fn(), // onItemsLoad
+            jest.fn(), // onItemsCount
+            addListItemsSpy, // addListItems
+        ];
+    },
+}));
+
+jest.mock('../../../src/static/js/utils/stores/', () => ({
+    PageStore: {
+        removeListener: mockRemoveListener,
+    },
+}));
+
+import { useItemListLazyLoad } from '../../../src/static/js/utils/hooks/useItemListLazyLoad';
+
+function HookConsumer(props: any) {
+    const tuple = useItemListLazyLoad(props);
+
+    const [
+        _items,
+        _countedItems,
+        _listHandler,
+        _setListHandler,
+        classname,
+        _onItemsCount,
+        _onItemsLoad,
+        _onWindowScroll,
+        _onDocumentVisibilityChange,
+        _itemsListWrapperRef,
+        _itemsListRef,
+        renderBeforeListWrap,
+        renderAfterListWrap,
+    ] = tuple as any;
+
+    return (
+        <div>
+            <div data-testid="class-list">{classname.list}</div>
+            <div data-testid="class-outer">{classname.listOuter}</div>
+            <div data-testid="render-before">{renderBeforeListWrap()}</div>
+            <div data-testid="render-after">{renderAfterListWrap()}</div>
+        </div>
+    );
+}
+
+function HookConsumerWithRefs(props: any) {
+    const tuple = useItemListLazyLoad(props);
+    const [
+        _items,
+        _countedItems,
+        _listHandler,
+        _setListHandler,
+        classname,
+        _onItemsCount,
+        _onItemsLoad,
+        onWindowScroll,
+        onDocumentVisibilityChange,
+        itemsListWrapperRef,
+        itemsListRef,
+        renderBeforeListWrap,
+        renderAfterListWrap,
+    ] = tuple as any;
+
+    return (
+        <div ref={itemsListWrapperRef}>
+            <div data-testid="class-list">{classname.list}</div>
+            <div data-testid="class-outer">{classname.listOuter}</div>
+            <div ref={itemsListRef} data-testid="list-ref-node" />
+            <div data-testid="render-before">{renderBeforeListWrap()}</div>
+            <div data-testid="render-after">{renderAfterListWrap()}</div>
+            <button data-testid="trigger-visibility" onClick={onDocumentVisibilityChange} type="button">
+                visibility
+            </button>
+            <button data-testid="trigger-scroll" onClick={onWindowScroll} type="button">
+                scroll
+            </button>
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useItemListLazyLoad', () => {
+        beforeEach(() => {
+            addListItemsSpy = jest.fn();
+            mockRemoveListener.mockClear();
+        });
+
+        afterEach(() => {
+            jest.clearAllMocks();
+        });
+
+        test('Computes classname.list and classname.listOuter with optional className prop', () => {
+            const { getByTestId, rerender } = render(<HookConsumer className=" extra  " />);
+            expect(getByTestId('class-outer').textContent).toBe('items-list-outer extra');
+            expect(getByTestId('class-list').textContent).toBe('items-list');
+            rerender(<HookConsumer />);
+            expect(getByTestId('class-outer').textContent).toBe('items-list-outer');
+            expect(getByTestId('class-list').textContent).toBe('items-list');
+        });
+
+        test('Invokes addListItems when items change', () => {
+            const { rerender } = render(<HookConsumer __items={[]} />);
+            expect(addListItemsSpy).toHaveBeenCalledTimes(1);
+            rerender(<HookConsumer __items={[1]} />);
+            expect(addListItemsSpy).toHaveBeenCalledTimes(2);
+        });
+
+        test('Renders nothing in renderBeforeListWrap and renderAfterListWrap', () => {
+            const { getByTestId } = render(
+                <HookConsumer __items={[1]} __countedItems={1} __totalPages={3} __loadedAll={false} />
+            );
+            expect(getByTestId('render-before').textContent).toBe('');
+            expect(getByTestId('render-after').textContent).toBe('');
+        });
+
+        test('Does not call listHandler.loadItems when refs are not attached', () => {
+            render(<HookConsumer __items={[1]} />);
+            expect(mockListHandler.loadItems).not.toHaveBeenCalled();
+        });
+
+        test('Calls listHandler.loadItems when refs are set and scroll threshold is reached', async () => {
+            render(<HookConsumerWithRefs __items={[1]} __loadedAll={false} />);
+            await waitFor(() => {
+                expect(mockListHandler.loadItems).toHaveBeenCalled();
+            });
+        });
+
+        test('Calls PageStore.removeListener when refs are set and loadedAllItems is true', () => {
+            render(<HookConsumerWithRefs __items={[1]} __loadedAll={true} />);
+            expect(mockRemoveListener).toHaveBeenCalledWith('window_scroll', expect.any(Function));
+        });
+
+        test('onDocumentVisibilityChange schedules onWindowScroll when document is visible', () => {
+            jest.useFakeTimers();
+            const setTimeoutSpy = jest.spyOn(globalThis, 'setTimeout');
+            Object.defineProperty(document, 'hidden', { value: false, configurable: true });
+
+            const { getByTestId } = render(<HookConsumerWithRefs __items={[1]} />);
+            fireEvent.click(getByTestId('trigger-visibility'));
+
+            expect(setTimeoutSpy).toHaveBeenCalledWith(expect.any(Function), 10);
+
+            setTimeoutSpy.mockRestore();
+            jest.useRealTimers();
+        });
+
+        test('onDocumentVisibilityChange does nothing when document is hidden', () => {
+            jest.useFakeTimers();
+            const setTimeoutSpy = jest.spyOn(globalThis, 'setTimeout');
+            Object.defineProperty(document, 'hidden', { value: true, configurable: true });
+
+            const { getByTestId } = render(<HookConsumerWithRefs __items={[1]} />);
+            fireEvent.click(getByTestId('trigger-visibility'));
+
+            expect(setTimeoutSpy).toHaveBeenCalledTimes(0);
+
+            setTimeoutSpy.mockRestore();
+            jest.useRealTimers();
+        });
+    });
+});

frontend/tests/utils/hooks/useItemListSync.test.tsx

@@ -0,0 +1,156 @@
+import React from 'react';
+import { render, fireEvent } from '@testing-library/react';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers/', () => ({
+    translateString: (s: string) => s,
+}));
+
+let mockListHandler: any;
+let mockOnItemsLoad = jest.fn();
+let mockOnItemsCount = jest.fn();
+let addListItemsSpy = jest.fn();
+
+// Mock useItemList to control items, counts, and listHandler
+jest.mock('../../../src/static/js/utils/hooks/useItemList', () => ({
+    useItemList: (props: any, _ref: any) => {
+        mockListHandler = {
+            loadItems: jest.fn(),
+            totalPages: jest.fn().mockReturnValue(props.__totalPages ?? 1),
+            loadedAllItems: jest.fn().mockReturnValue(Boolean(props.__loadedAll ?? true)),
+        };
+        return [
+            props.__items ?? [], // items
+            props.__countedItems ?? 0, // countedItems
+            mockListHandler, // listHandler
+            jest.fn(), // setListHandler
+            mockOnItemsLoad, // onItemsLoad
+            mockOnItemsCount, // onItemsCount
+            addListItemsSpy, // addListItems
+        ];
+    },
+}));
+
+import { useItemListSync } from '../../../src/static/js/utils/hooks/useItemListSync';
+
+function HookConsumer(props: any) {
+    const tuple = useItemListSync(props);
+
+    const [
+        _countedItems,
+        _items,
+        _listHandler,
+        _setListHandler,
+        classname,
+        _itemsListWrapperRef,
+        _itemsListRef,
+        _onItemsCount,
+        _onItemsLoad,
+        renderBeforeListWrap,
+        renderAfterListWrap,
+    ] = tuple as any;
+
+    return (
+        <div>
+            {/* <div data-testid="counted">{String(countedItems)}</div> */}
+            {/* <div data-testid="items">{Array.isArray(items) ? items.length : 0}</div> */}
+            <div data-testid="class-list">{classname.list}</div>
+            <div data-testid="class-outer">{classname.listOuter}</div>
+            {/* <div data-testid="has-handler">{listHandler ? 'yes' : 'no'}</div> */}
+            {/* <div data-testid="wrapper-ref">{itemsListWrapperRef.current ? 'set' : 'unset'}</div> */}
+            {/* <div data-testid="list-ref">{itemsListRef.current ? 'set' : 'unset'}</div> */}
+            <div data-testid="render-before">{renderBeforeListWrap()}</div>
+            <div data-testid="render-after">{renderAfterListWrap()}</div>
+            {/* <button data-testid="call-on-load" onClick={() => onItemsLoad([])} /> */}
+            {/* <button data-testid="call-on-count" onClick={() => onItemsCount(0)} /> */}
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useItemListSync', () => {
+        beforeEach(() => {
+            mockOnItemsLoad = jest.fn();
+            mockOnItemsCount = jest.fn();
+            addListItemsSpy = jest.fn();
+        });
+
+        afterEach(() => {
+            jest.clearAllMocks();
+        });
+
+        describe('Classname Management', () => {
+            test('Computes classname.listOuter with optional className prop', () => {
+                const { getByTestId, rerender } = render(<HookConsumer className=" extra  " />);
+                expect(getByTestId('class-outer').textContent).toBe('items-list-outer extra');
+                expect(getByTestId('class-list').textContent).toBe('items-list');
+                rerender(<HookConsumer />);
+                expect(getByTestId('class-outer').textContent).toBe('items-list-outer');
+                expect(getByTestId('class-list').textContent).toBe('items-list');
+            });
+        });
+
+        describe('Items Management', () => {
+            test('Invokes addListItems and afterItemsLoad when items change', () => {
+                const { rerender } = render(<HookConsumer __items={[]} />);
+                expect(addListItemsSpy).toHaveBeenCalledTimes(1);
+                rerender(<HookConsumer __items={[1]} />);
+                // useEffect runs again due to items change
+                expect(addListItemsSpy).toHaveBeenCalledTimes(2);
+            });
+        });
+
+        describe('Load More Button Rendering', () => {
+            test('Renders SHOW MORE button when more pages exist and not loaded all', () => {
+                const { getByTestId } = render(
+                    <HookConsumer __items={[1]} __countedItems={1} __totalPages={3} __loadedAll={false} />
+                );
+                const btn = getByTestId('render-after').querySelector('button.load-more') as HTMLButtonElement;
+                expect(btn).toBeTruthy();
+                expect(btn.textContent).toBe('SHOW MORE');
+                fireEvent.click(btn);
+                expect(mockListHandler.loadItems).toHaveBeenCalledTimes(1);
+            });
+
+            test('Hides SHOW MORE when totalPages <= 1', () => {
+                const { getByTestId } = render(
+                    // With totalPages=1 the hook should not render the button regardless of loadedAll
+                    <HookConsumer __items={[1, 2]} __countedItems={2} __totalPages={1} __loadedAll={true} />
+                );
+                expect(getByTestId('render-after').textContent).toBe('');
+            });
+
+            test('Hides SHOW MORE when loadedAllItems is true', () => {
+                const { getByTestId } = render(
+                    <HookConsumer __items={[1, 2, 3]} __countedItems={3} __totalPages={5} __loadedAll={true} />
+                );
+                expect(getByTestId('render-after').textContent).toBe('');
+            });
+
+            test('Shows SHOW MORE when loadedAllItems is false even with totalPages > 1', () => {
+                const { getByTestId } = render(
+                    <HookConsumer __items={[1, 2]} __countedItems={2} __totalPages={2} __loadedAll={false} />
+                );
+                const btn = getByTestId('render-after').querySelector('button.load-more');
+                expect(btn).toBeTruthy();
+            });
+
+            test('Returns null from renderBeforeListWrap', () => {
+                const { getByTestId } = render(
+                    <HookConsumer __items={[1]} __countedItems={1} __totalPages={3} __loadedAll={false} />
+                );
+                expect(getByTestId('render-before').textContent).toBe('');
+            });
+        });
+    });
+});

frontend/tests/utils/hooks/useLayout.test.tsx

@@ -0,0 +1,118 @@
+import React from 'react';
+import { act, render } from '@testing-library/react';
+
+import { useLayout } from '../../../src/static/js/utils/hooks/useLayout';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: (key: string) => {
+            let result: any = undefined;
+            switch (key) {
+                case 'visible-sidebar':
+                    result = true;
+                    break;
+            }
+            return result;
+        },
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/dispatcher.js', () => ({
+    register: jest.fn(),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+import { LayoutProvider } from '../../../src/static/js/utils/contexts';
+
+describe('utils/hooks', () => {
+    describe('useLayout', () => {
+        test('Returns default value', () => {
+            let received: ReturnType<typeof useLayout> | undefined;
+
+            const Comp: React.FC = () => {
+                received = useLayout();
+                return null;
+            };
+
+            render(
+                <LayoutProvider>
+                    <Comp />
+                </LayoutProvider>
+            );
+
+            expect(received).toStrictEqual({
+                enabledSidebar: false,
+                visibleSidebar: true,
+                visibleMobileSearch: false,
+                setVisibleSidebar: expect.any(Function),
+                toggleMobileSearch: expect.any(Function),
+                toggleSidebar: expect.any(Function),
+            });
+        });
+
+        test('Returns undefined value when used without a Provider', () => {
+            let received: any = 'init';
+
+            const Comp: React.FC = () => {
+                received = useLayout();
+                return null;
+            };
+
+            render(<Comp />);
+
+            expect(received).toBe(undefined);
+        });
+
+        test('Toggle sidebar', () => {
+            jest.useFakeTimers();
+
+            let received: ReturnType<typeof useLayout> | undefined;
+
+            const Comp: React.FC = () => {
+                received = useLayout();
+                return null;
+            };
+
+            render(
+                <LayoutProvider>
+                    <Comp />
+                </LayoutProvider>
+            );
+
+            act(() => received?.toggleSidebar());
+            jest.advanceTimersByTime(241);
+            expect(received?.visibleSidebar).toBe(false);
+
+            act(() => received?.toggleSidebar());
+            jest.advanceTimersByTime(241);
+            expect(received?.visibleSidebar).toBe(true);
+
+            jest.useRealTimers();
+        });
+
+        test('Toggle mobile search', () => {
+            let received: ReturnType<typeof useLayout> | undefined;
+
+            const Comp: React.FC = () => {
+                received = useLayout();
+                return null;
+            };
+
+            render(
+                <LayoutProvider>
+                    <Comp />
+                </LayoutProvider>
+            );
+
+            act(() => received?.toggleMobileSearch());
+            expect(received?.visibleMobileSearch).toBe(true);
+
+            act(() => received?.toggleMobileSearch());
+            expect(received?.visibleMobileSearch).toBe(false);
+        });
+    });
+});

frontend/tests/utils/hooks/useManagementTableHeader.test.tsx

@@ -0,0 +1,134 @@
+import React from 'react';
+import { render, fireEvent } from '@testing-library/react';
+import { useManagementTableHeader } from '../../../src/static/js/utils/hooks/useManagementTableHeader';
+
+function HookConsumer(props: {
+    order: 'asc' | 'desc';
+    selected: boolean;
+    sort: string;
+    type: 'comments' | 'media' | 'users';
+    onCheckAllRows?: (newSort: string, newOrder: 'asc' | 'desc') => void;
+    onClickColumnSort?: (newSelected: boolean, newType: 'comments' | 'media' | 'users') => void;
+}) {
+    const tuple = useManagementTableHeader(props) as [
+        string,
+        'asc' | 'desc',
+        boolean,
+        React.MouseEventHandler,
+        () => void,
+    ];
+
+    const [sort, order, isSelected, sortByColumn, checkAll] = tuple;
+
+    return (
+        <div>
+            <div data-testid="sort">{sort}</div>
+            <div data-testid="order">{order}</div>
+            <div data-testid="selected">{String(isSelected)}</div>
+            <button id="title" data-testid="col-title" onClick={sortByColumn} />
+            <button id="views" data-testid="col-views" onClick={sortByColumn} />
+            <button data-testid="check-all" onClick={checkAll} />
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useManagementTableHeader', () => {
+        test('Returns a 5-tuple in expected order and reflects initial props', () => {
+            let tuple: any;
+
+            const Comp: React.FC = () => {
+                tuple = useManagementTableHeader({ sort: 'title', order: 'asc', selected: false });
+                return null;
+            };
+
+            render(<Comp />);
+
+            expect(Array.isArray(tuple)).toBe(true);
+            expect(tuple).toHaveLength(5);
+
+            const [sort, order, isSelected] = tuple;
+
+            expect(sort).toBe('title');
+            expect(order).toBe('asc');
+            expect(isSelected).toBe(false);
+        });
+
+        test('sortByColumn toggles order when clicking same column and updates sort when clicking different column', () => {
+            const onClickColumnSort = jest.fn();
+
+            const { getByTestId, rerender } = render(
+                <HookConsumer
+                    sort="title"
+                    order="desc"
+                    type="media"
+                    selected={false}
+                    onClickColumnSort={onClickColumnSort}
+                />
+            );
+
+            // Initial state
+            expect(getByTestId('sort').textContent).toBe('title');
+            expect(getByTestId('order').textContent).toBe('desc');
+
+            // Click same column -> toggle order to asc
+            fireEvent.click(getByTestId('col-title'));
+            expect(onClickColumnSort).toHaveBeenLastCalledWith('title', 'asc');
+
+            // Rerender to ensure state settled in testing DOM
+            rerender(
+                <HookConsumer
+                    sort="title"
+                    order="asc"
+                    type="media"
+                    selected={false}
+                    onClickColumnSort={onClickColumnSort}
+                />
+            );
+
+            // Click same column -> toggle order to desc
+            fireEvent.click(getByTestId('col-title'));
+            expect(onClickColumnSort).toHaveBeenLastCalledWith('title', 'desc');
+
+            // Click different column -> set sort to that column and default order desc
+            fireEvent.click(getByTestId('col-views'));
+            expect(onClickColumnSort).toHaveBeenLastCalledWith('views', 'desc');
+        });
+
+        test('checkAll inverts current selection and invokes callback with newSelected and type', () => {
+            const onCheckAllRows = jest.fn();
+
+            const { getByTestId } = render(
+                <HookConsumer sort="title" order="asc" selected={false} type="media" onCheckAllRows={onCheckAllRows} />
+            );
+
+            expect(getByTestId('selected').textContent).toBe('false');
+            fireEvent.click(getByTestId('check-all'));
+
+            // newSelected computed as !isSelected -> true
+            expect(onCheckAllRows).toHaveBeenCalledWith(true, 'media');
+        });
+
+        test('Effects update internal state when props change', () => {
+            const { getByTestId, rerender } = render(
+                <HookConsumer sort="title" order="asc" type="media" selected={false} />
+            );
+
+            expect(getByTestId('sort').textContent).toBe('title');
+            expect(getByTestId('order').textContent).toBe('asc');
+            expect(getByTestId('selected').textContent).toBe('false');
+
+            rerender(<HookConsumer sort="views" order="desc" type="media" selected={true} />);
+
+            expect(getByTestId('sort').textContent).toBe('views');
+            expect(getByTestId('order').textContent).toBe('desc');
+            expect(getByTestId('selected').textContent).toBe('true');
+        });
+
+        test('Does not throw when optional callbacks are not provided', () => {
+            const { getByTestId } = render(<HookConsumer sort="x" order="desc" type="media" selected={false} />);
+            expect(() => fireEvent.click(getByTestId('col-title'))).not.toThrow();
+            expect(() => fireEvent.click(getByTestId('check-all'))).not.toThrow();
+        });
+    });
+});

frontend/tests/utils/hooks/useMediaFilter.test.tsx

@@ -0,0 +1,119 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import { useMediaFilter } from '../../../src/static/js/utils/hooks/useMediaFilter';
+
+jest.mock('../../../src/static/js/components/_shared/popup/PopupContent', () => ({
+    PopupContent: (props: any) => React.createElement('div', props, props.children),
+}));
+
+jest.mock('../../../src/static/js/components/_shared/popup/PopupTrigger', () => ({
+    PopupTrigger: (props: any) => React.createElement('div', props, props.children),
+}));
+
+function HookConsumer({ initial }: { initial: string }) {
+    const tuple = useMediaFilter(initial) as [
+        React.RefObject<any>,
+        string,
+        React.Dispatch<React.SetStateAction<string>>,
+        React.RefObject<any>,
+        React.ReactNode,
+        React.ReactNode,
+    ];
+
+    const [containerRef, value, setValue, popupContentRef, PopupContent, PopupTrigger] = tuple;
+
+    return (
+        <div>
+            <div data-testid="container-ref">{containerRef && typeof containerRef === 'object' ? 'ok' : 'bad'}</div>
+            <div data-testid="value">{value}</div>
+            <button data-testid="set" onClick={() => setValue('updated')} />
+            <div data-testid="popup-ref">{popupContentRef && typeof popupContentRef === 'object' ? 'ok' : 'bad'}</div>
+            {typeof PopupContent === 'function' ? React.createElement(PopupContent, null, 'c') : null}
+            {typeof PopupTrigger === 'function' ? React.createElement(PopupTrigger, null, 't') : null}
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useMediaFilter', () => {
+        test('Returns a 6-tuple in expected order', () => {
+            let tuple: any;
+
+            const Comp: React.FC = () => {
+                tuple = useMediaFilter('init');
+                return null;
+            };
+
+            render(<Comp />);
+
+            expect(Array.isArray(tuple)).toBe(true);
+            expect(tuple).toHaveLength(6);
+
+            const [containerRef, value, setValue, popupContentRef, PopupContent, PopupTrigger] = tuple;
+
+            expect(containerRef).toBeDefined();
+            expect(containerRef.current).toBe(null);
+            expect(value).toBe('init');
+            expect(typeof setValue).toBe('function');
+            expect(popupContentRef).toBeDefined();
+            expect(typeof PopupContent).toBe('function');
+            expect(typeof PopupTrigger).toBe('function');
+        });
+
+        test('Initial value is respected and can be updated via setter', () => {
+            const { getByTestId } = render(<HookConsumer initial="first" />);
+            expect(getByTestId('value').textContent).toBe('first');
+            getByTestId('set').click();
+            expect(getByTestId('value').textContent).toBe('updated');
+        });
+
+        test('containerRef and popupContentRef are mutable ref objects', () => {
+            let data: any;
+
+            const Comp: React.FC = () => {
+                data = useMediaFilter('x');
+                return null;
+            };
+
+            render(<Comp />);
+
+            const [containerRef, _value, _setValue, popupContentRef] = data;
+
+            expect(containerRef.current).toBe(null);
+            expect(popupContentRef.current).toBe(null);
+        });
+
+        test('PopupContent and PopupTrigger are stable functions', () => {
+            let first: any;
+            let second: any;
+
+            const First: React.FC = () => {
+                first = useMediaFilter('a');
+                return null;
+            };
+
+            const Second: React.FC = () => {
+                second = useMediaFilter('b');
+                return null;
+            };
+
+            const Parent: React.FC = () => (
+                <>
+                    <First />
+                    <Second />
+                </>
+            );
+
+            render(<Parent />);
+
+            const [, , , , PopupContent1, PopupTrigger1] = first;
+            const [, , , , PopupContent2, PopupTrigger2] = second;
+
+            expect(typeof PopupContent1).toBe('function');
+            expect(typeof PopupTrigger1).toBe('function');
+
+            expect(PopupContent1).toBe(PopupContent2);
+            expect(PopupTrigger1).toBe(PopupTrigger2);
+        });
+    });
+});

frontend/tests/utils/hooks/useMediaItem.test.tsx

@@ -0,0 +1,289 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import { useMediaItem, itemClassname } from '../../../src/static/js/utils/hooks/useMediaItem';
+
+// Mock dependencies used by useMediaItem
+
+// @todo: Revisit this
+jest.mock('../../../src/static/js/utils/stores/', () => ({
+    PageStore: { get: (_: string) => ({ url: 'https://example.com' }) },
+}));
+
+jest.mock('../../../src/static/js/components/list-item/includes/items', () => ({
+    MediaItemAuthor: ({ name }: any) => <div data-testid="author" data-name={name} />,
+    MediaItemAuthorLink: ({ name, link }: any) => (
+        <a data-testid="author-link" data-name={name} href={link || undefined} />
+    ),
+    MediaItemMetaViews: ({ views }: any) => <span data-testid="views" data-views={views} />,
+    MediaItemMetaDate: ({ time, dateTime, text }: any) => (
+        <time data-testid="date" data-time={String(time)} data-datetime={String(dateTime)}>
+            {text}
+        </time>
+    ),
+    MediaItemEditLink: ({ link }: any) => <a data-testid="edit" href={link} />,
+    MediaItemViewLink: ({ link }: any) => <a data-testid="view" href={link} />,
+}));
+
+// @todo: Revisit this
+// useItem returns titleComponent, descriptionComponent, thumbnailUrl, UnderThumbWrapper
+jest.mock('../../../src/static/js/utils/hooks/useItem', () => ({
+    useItem: (props: any) => ({
+        titleComponent: () => <h3 data-testid="title">{props.title || 'title'}</h3>,
+        descriptionComponent: () => <p data-testid="desc">{props.description || 'desc'}</p>,
+        thumbnailUrl: props.thumb || 'thumb.jpg',
+        UnderThumbWrapper: ({ children }: any) => <div data-testid="under-thumb">{children}</div>,
+    }),
+}));
+
+function HookConsumer(props: any) {
+    const [TitleComp, DescComp, thumbUrl, UnderThumbComp, EditComp, MetaComp, ViewComp] = useMediaItem(props);
+    // The hook returns functions/components/values. To satisfy TS, render using React.createElement
+    return (
+        <div>
+            {typeof TitleComp === 'function' ? React.createElement(TitleComp) : null}
+            {typeof DescComp === 'function' ? React.createElement(DescComp) : null}
+            <div data-testid="thumb">{typeof thumbUrl === 'string' ? thumbUrl : ''}</div>
+            {typeof UnderThumbComp === 'function'
+                ? React.createElement(
+                      UnderThumbComp,
+                      null,
+                      typeof EditComp === 'function' ? React.createElement(EditComp) : null,
+                      typeof MetaComp === 'function' ? React.createElement(MetaComp) : null,
+                      typeof ViewComp === 'function' ? React.createElement(ViewComp) : null
+                  )
+                : null}
+        </div>
+    );
+}
+
+describe('utils/hooks', () => {
+    describe('useMediaItem', () => {
+        describe('itemClassname utility function', () => {
+            test('Returns default classname when no modifications', () => {
+                expect(itemClassname('base', '', false)).toBe('base');
+            });
+
+            test('Appends inherited classname when provided', () => {
+                expect(itemClassname('base', 'extra', false)).toBe('base extra');
+            });
+
+            test('Appends pl-active-item when isActiveInPlaylistPlayback is true', () => {
+                expect(itemClassname('base', '', true)).toBe('base pl-active-item');
+            });
+
+            test('Appends both inherited classname and active state', () => {
+                expect(itemClassname('base', 'extra', true)).toBe('base extra pl-active-item');
+            });
+        });
+
+        describe('Basic Rendering', () => {
+            test('Renders basic components from useItem and edit/view links', () => {
+                // @todo: Revisit this
+                const props = {
+                    title: 'My Title',
+                    description: 'My Desc',
+                    thumbnail: 'thumb.jpg',
+                    link: '/watch/1',
+                    singleLinkContent: true,
+                    // hasMediaViewer:...
+                    // hasMediaViewerDescr:...
+                    // meta_description:...
+                    // onMount:...
+                    // type:...
+                    // ------------------------------
+                    editLink: '/edit/1',
+                    showSelection: true,
+                    // publishLink: ...
+                    // hideAuthor:...
+                    author_name: 'Author',
+                    author_link: '/u/author',
+                    // hideViews:...
+                    views: 10,
+                    // hideDate:...
+                    publish_date: '2020-01-01T00:00:00Z',
+                    // hideAllMeta:...
+                };
+
+                const { getByTestId, queryByTestId } = render(<HookConsumer {...props} />);
+
+                expect(getByTestId('title').textContent).toBe(props.title);
+                expect(getByTestId('desc').textContent).toBe(props.description);
+                expect(getByTestId('thumb').textContent).toBe('thumb.jpg');
+
+                expect(getByTestId('edit').getAttribute('href')).toBe(props.editLink);
+
+                expect(getByTestId('views').getAttribute('data-views')).toBe(props.views.toString());
+                expect(getByTestId('date')).toBeTruthy();
+                expect(getByTestId('view').getAttribute('href')).toBe(props.link);
+                expect(queryByTestId('author')).toBeTruthy();
+            });
+        });
+
+        describe('View Link Selection', () => {
+            test('Uses publishLink when provided and showSelection=true', () => {
+                const props = {
+                    editLink: '/edit/2',
+                    link: '/watch/2',
+                    publishLink: '/publish/2',
+                    showSelection: true,
+                    singleLinkContent: true,
+                    author_name: 'A',
+                    author_link: '',
+                    views: 0,
+                    publish_date: 0,
+                };
+
+                const { getByTestId } = render(<HookConsumer {...props} />);
+
+                expect(getByTestId('view').getAttribute('href')).toBe(props.publishLink);
+            });
+        });
+
+        describe('Visibility Controls', () => {
+            test('Hides author, views, and date based on props', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    hideAuthor: true,
+                    hideViews: true,
+                    hideDate: true,
+                    publish_date: '2020-01-01T00:00:00Z',
+                    views: 5,
+                    author_name: 'Hidden',
+                    author_link: '/u/x',
+                };
+
+                const { queryByTestId } = render(<HookConsumer {...props} />);
+
+                expect(queryByTestId('author')).toBeNull();
+                expect(queryByTestId('views')).toBeNull();
+                expect(queryByTestId('date')).toBeNull();
+            });
+
+            test('Author link resolves using formatInnerLink and PageStore base url when singleLinkContent=false', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    singleLinkContent: false,
+                    hideAuthor: false,
+                    author_name: 'John',
+                    author_link: '/u/john',
+                    publish_date: '2020-01-01T00:00:00Z',
+                };
+
+                const { container } = render(<HookConsumer {...props} />);
+
+                const a = container.querySelector('[data-testid="author-link"]') as HTMLAnchorElement;
+
+                expect(a).toBeTruthy();
+                expect(a.getAttribute('href')).toBe(`https://example.com${props.author_link}`);
+                expect(a.getAttribute('data-name')).toBe(props.author_name);
+            });
+        });
+
+        describe('Meta Visibility', () => {
+            test('Meta wrapper hidden when hideAllMeta=true', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    hideAllMeta: true,
+                    publish_date: '2020-01-01T00:00:00Z',
+                };
+
+                const { queryByTestId } = render(<HookConsumer {...props} />);
+
+                expect(queryByTestId('author')).toBeNull();
+                expect(queryByTestId('views')).toBeNull();
+                expect(queryByTestId('date')).toBeNull();
+            });
+
+            test('Meta wrapper hidden individually by hideAuthor, hideViews, hideDate', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    hideAuthor: true,
+                    hideViews: false,
+                    hideDate: false,
+                    publish_date: '2020-01-01T00:00:00Z',
+                    views: 5,
+                    author_name: 'Test',
+                    author_link: '/u/test',
+                };
+
+                const { queryByTestId } = render(<HookConsumer {...props} />);
+
+                expect(queryByTestId('author')).toBeNull();
+                expect(queryByTestId('views')).toBeTruthy();
+                expect(queryByTestId('date')).toBeTruthy();
+            });
+        });
+
+        describe('Edge Cases & Date Handling', () => {
+            test('Handles views when hideViews is false', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    hideViews: false,
+                    views: 100,
+                    publish_date: '2020-01-01T00:00:00Z',
+                    author_name: 'A',
+                    author_link: '/u/a',
+                };
+
+                const { getByTestId } = render(<HookConsumer {...props} />);
+                expect(getByTestId('views')).toBeTruthy();
+                expect(getByTestId('views').getAttribute('data-views')).toBe('100');
+            });
+
+            test('Renders without showSelection', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: false,
+                    publish_date: '2020-01-01T00:00:00Z',
+                    author_name: 'A',
+                    author_link: '/u/a',
+                };
+
+                const { queryByTestId } = render(<HookConsumer {...props} />);
+                expect(queryByTestId('view')).toBeNull();
+            });
+
+            test('Handles numeric publish_date correctly', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    publish_date: 1577836800000, // 2020-01-01 as timestamp
+                    author_name: 'A',
+                    author_link: '/u/a',
+                };
+
+                const { getByTestId } = render(<HookConsumer {...props} />);
+                expect(getByTestId('date')).toBeTruthy();
+            });
+
+            test('Handles empty author_link by setting it to null', () => {
+                const props = {
+                    editLink: '/e',
+                    link: '/l',
+                    showSelection: true,
+                    singleLinkContent: false,
+                    author_name: 'Anonymous',
+                    author_link: '', // Empty link
+                    publish_date: '2020-01-01T00:00:00Z',
+                };
+
+                const { container } = render(<HookConsumer {...props} />);
+                const authorLink = container.querySelector('[data-testid="author-link"]') as HTMLAnchorElement;
+                expect(authorLink).toBeTruthy();
+                expect(authorLink.getAttribute('href')).toBeNull();
+            });
+        });
+    });
+});

frontend/tests/utils/hooks/usePopup.test.tsx

@@ -0,0 +1,68 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+
+// Mock popup components to avoid SCSS imports breaking Jest
+jest.mock('../../../src/static/js/components/_shared/popup/Popup.jsx', () => {
+    const React = require('react');
+    const Popup = React.forwardRef((props: any, _ref: any) => React.createElement('div', props, props.children));
+    return { __esModule: true, default: Popup };
+});
+
+jest.mock('../../../src/static/js/components/_shared/popup/PopupContent.jsx', () => ({
+    PopupContent: (props: any) => React.createElement('div', props, props.children),
+}));
+
+jest.mock('../../../src/static/js/components/_shared/popup/PopupTrigger.jsx', () => ({
+    PopupTrigger: (props: any) => React.createElement('div', props, props.children),
+}));
+
+import { usePopup } from '../../../src/static/js/utils/hooks/usePopup';
+
+describe('utils/hooks', () => {
+    describe('usePopup', () => {
+        test('Returns a 3-tuple: [ref, PopupContent, PopupTrigger]', () => {
+            let value: any;
+
+            const Comp: React.FC = () => {
+                value = usePopup();
+                return null;
+            };
+
+            render(<Comp />);
+
+            expect(Array.isArray(value)).toBe(true);
+            expect(value).toHaveLength(3);
+
+            const [ref, PopupContent, PopupTrigger] = value;
+
+            expect(ref).toBeDefined();
+            expect(ref.current).toBe(null);
+
+            expect(typeof PopupContent).toBe('function');
+            expect(typeof PopupTrigger).toBe('function');
+        });
+
+        test('Tuple components are stable functions and refs are unique per call', () => {
+            let results: any[] = [];
+
+            const Comp: React.FC = () => {
+                results.push(usePopup());
+                results.push(usePopup());
+                return null;
+            };
+
+            render(<Comp />);
+
+            const [ref1, PopupContent1, PopupTrigger1] = results[0];
+            const [ref2, PopupContent2, PopupTrigger2] = results[1];
+
+            expect(typeof PopupContent1).toBe('function');
+            expect(typeof PopupTrigger1).toBe('function');
+
+            expect(PopupContent1).toBe(PopupContent2);
+            expect(PopupTrigger1).toBe(PopupTrigger2);
+
+            expect(ref1).not.toBe(ref2);
+        });
+    });
+});

frontend/tests/utils/hooks/useTheme.test.tsx

@@ -0,0 +1,100 @@
+import React from 'react';
+import { act, render } from '@testing-library/react';
+
+import { useTheme as useThemeHook } from '../../../src/static/js/utils/hooks/useTheme';
+
+import { sampleMediaCMSConfig } from '../../tests-constants';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/dispatcher.js', () => ({
+    register: jest.fn(),
+}));
+
+function getRenderers(ThemeProvider: React.FC<{ children: React.ReactNode }>, useTheme: typeof useThemeHook) {
+    const data: { current: any } = { current: undefined };
+
+    const Comp: React.FC = () => {
+        data.current = useTheme();
+        return null;
+    };
+
+    const wrapper: typeof ThemeProvider = ({ children }) => <ThemeProvider>{children}</ThemeProvider>;
+
+    return { Comp, wrapper, data };
+}
+
+function getThemeConfig(override?: {
+    logo?: Partial<(typeof sampleMediaCMSConfig.theme)['logo']>;
+    mode?: (typeof sampleMediaCMSConfig.theme)['mode'];
+    switch?: Partial<(typeof sampleMediaCMSConfig.theme)['switch']>;
+}) {
+    const { logo, mode, switch: sw } = override ?? {};
+    const { lightMode, darkMode } = logo ?? {};
+
+    const config = {
+        logo: {
+            lightMode: { img: lightMode?.img ?? '/img/light.png', svg: lightMode?.svg ?? '/img/light.svg' },
+            darkMode: { img: darkMode?.img ?? '/img/dark.png', svg: darkMode?.svg ?? '/img/dark.svg' },
+        },
+        mode: mode ?? 'dark',
+        switch: { enabled: sw?.enabled ?? true, position: sw?.position ?? 'sidebar' },
+    };
+
+    return config;
+}
+
+describe('utils/hooks', () => {
+    afterEach(() => {
+        jest.resetModules();
+        jest.clearAllMocks();
+    });
+
+    describe('useTheme', () => {
+        const themeConfig = getThemeConfig();
+        const darkThemeConfig = getThemeConfig({ mode: 'dark' });
+
+        // @todo: Revisit this
+        test.each([
+            [
+                darkThemeConfig,
+                {
+                    logo: darkThemeConfig.logo.darkMode.svg,
+                    currentThemeMode: darkThemeConfig.mode,
+                    changeThemeMode: expect.any(Function),
+                    themeModeSwitcher: themeConfig.switch,
+                },
+            ],
+        ])('Validate value', async (theme, expectedResult) => {
+            jest.doMock('../../../src/static/js/utils/settings/config', () => ({
+                config: jest.fn(() => ({ ...jest.requireActual('../../tests-constants').sampleMediaCMSConfig, theme })),
+            }));
+
+            const { ThemeProvider } = await import('../../../src/static/js/utils/contexts/ThemeContext');
+            const { useTheme } = await import('../../../src/static/js/utils/hooks/useTheme');
+
+            const { Comp, wrapper, data } = getRenderers(ThemeProvider, useTheme);
+
+            render(<Comp />, { wrapper });
+
+            expect(data.current).toStrictEqual(expectedResult);
+
+            act(() => data.current.changeThemeMode());
+
+            const newThemeMode = 'light' === expectedResult.currentThemeMode ? 'dark' : 'light';
+            const newThemeLogo =
+                'light' === newThemeMode ? themeConfig.logo.lightMode.svg : themeConfig.logo.darkMode.svg;
+
+            expect(data.current).toStrictEqual({
+                ...expectedResult,
+                logo: newThemeLogo,
+                currentThemeMode: newThemeMode,
+            });
+        });
+    });
+});

frontend/tests/utils/hooks/useUser.test.tsx

@@ -0,0 +1,45 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+
+import { UserProvider } from '../../../src/static/js/utils/contexts/UserContext';
+import { useUser } from '../../../src/static/js/utils/hooks/useUser';
+import { sampleMediaCMSConfig } from '../../tests-constants';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+function getRenderers() {
+    const data: { current: any } = { current: undefined };
+
+    const Comp: React.FC = () => {
+        data.current = useUser();
+        return null;
+    };
+
+    const wrapper: React.FC<{ children: React.ReactNode }> = ({ children }) => <UserProvider>{children}</UserProvider>;
+
+    return { Comp, wrapper, data };
+}
+
+describe('utils/hooks', () => {
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('useUser', () => {
+        test('Validate value', () => {
+            const { Comp, wrapper, data } = getRenderers();
+
+            render(<Comp />, { wrapper });
+
+            expect(data.current).toStrictEqual({
+                isAnonymous: sampleMediaCMSConfig.member.is.anonymous,
+                username: sampleMediaCMSConfig.member.username,
+                thumbnail: sampleMediaCMSConfig.member.thumbnail,
+                userCan: sampleMediaCMSConfig.member.can,
+                pages: sampleMediaCMSConfig.member.pages,
+            });
+        });
+    });
+});

frontend/tests/utils/stores/MediaPageStore.test.ts

@@ -0,0 +1,739 @@
+import { csrfToken, deleteRequest, getRequest, postRequest, putRequest } from '../../../src/static/js/utils/helpers';
+
+const MEDIA_ID = 'MEDIA_ID';
+const PLAYLIST_ID = 'PLAYLIST_ID';
+
+window.history.pushState({}, '', `/?m=${MEDIA_ID}&pl=${PLAYLIST_ID}`);
+
+import store from '../../../src/static/js/utils/stores/MediaPageStore';
+
+import { sampleGlobalMediaCMS, sampleMediaCMSConfig } from '../../tests-constants';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    BrowserEvents: jest.fn().mockImplementation(() => ({
+        doc: jest.fn(),
+        win: jest.fn(),
+    })),
+    csrfToken: jest.fn(),
+    deleteRequest: jest.fn(),
+    exportStore: jest.fn((store) => store),
+    getRequest: jest.fn(),
+    postRequest: jest.fn(),
+    putRequest: jest.fn(),
+}));
+
+describe('utils/store', () => {
+    describe('MediaPageStore', () => {
+        const handler = store.actions_handler.bind(store);
+
+        const onLoadedViewerPlaylistData = jest.fn();
+        const onLoadedPagePlaylistData = jest.fn();
+        const onLoadedViewerPlaylistError = jest.fn();
+        const onLoadedVideoData = jest.fn();
+        const onLoadedImageData = jest.fn();
+        const onLoadedMediaData = jest.fn();
+        const onLoadedMediaError = jest.fn();
+        const onCommentsLoad = jest.fn();
+        const onUsersLoad = jest.fn();
+        const onPlaylistsLoad = jest.fn();
+        const onLikedMediaFailedRequest = jest.fn();
+        const onLikedMedia = jest.fn();
+        const onDislikedMediaFailedRequest = jest.fn();
+        const onDislikedMedia = jest.fn();
+        const onReportedMedia = jest.fn();
+        const onPlaylistCreationCompleted = jest.fn();
+        const onPlaylistCreationFailed = jest.fn();
+        const onMediaPlaylistAdditionCompleted = jest.fn();
+        const onMediaPlaylistAdditionFailed = jest.fn();
+        const onMediaPlaylistRemovalCompleted = jest.fn();
+        const onMediaPlaylistRemovalFailed = jest.fn();
+        const onCopiedMediaLink = jest.fn();
+        const onCopiedEmbedMediaCode = jest.fn();
+        const onMediaDelete = jest.fn();
+        const onMediaDeleteFail = jest.fn();
+        const onCommentDeleteFail = jest.fn();
+        const onCommentDelete = jest.fn();
+        const onCommentSubmitFail = jest.fn();
+        const onCommentSubmit = jest.fn();
+
+        store.on('loaded_viewer_playlist_data', onLoadedViewerPlaylistData);
+        store.on('loaded_page_playlist_data', onLoadedPagePlaylistData);
+        store.on('loaded_viewer_playlist_error', onLoadedViewerPlaylistError);
+        store.on('loaded_video_data', onLoadedVideoData);
+        store.on('loaded_image_data', onLoadedImageData);
+        store.on('loaded_media_data', onLoadedMediaData);
+        store.on('loaded_media_error', onLoadedMediaError);
+        store.on('comments_load', onCommentsLoad);
+        store.on('users_load', onUsersLoad);
+        store.on('playlists_load', onPlaylistsLoad);
+        store.on('liked_media_failed_request', onLikedMediaFailedRequest);
+        store.on('liked_media', onLikedMedia);
+        store.on('disliked_media_failed_request', onDislikedMediaFailedRequest);
+        store.on('disliked_media', onDislikedMedia);
+        store.on('reported_media', onReportedMedia);
+        store.on('playlist_creation_completed', onPlaylistCreationCompleted);
+        store.on('playlist_creation_failed', onPlaylistCreationFailed);
+        store.on('media_playlist_addition_completed', onMediaPlaylistAdditionCompleted);
+        store.on('media_playlist_addition_failed', onMediaPlaylistAdditionFailed);
+        store.on('media_playlist_removal_completed', onMediaPlaylistRemovalCompleted);
+        store.on('media_playlist_removal_failed', onMediaPlaylistRemovalFailed);
+        store.on('copied_media_link', onCopiedMediaLink);
+        store.on('copied_embed_media_code', onCopiedEmbedMediaCode);
+        store.on('media_delete', onMediaDelete);
+        store.on('media_delete_fail', onMediaDeleteFail);
+        store.on('comment_delete_fail', onCommentDeleteFail);
+        store.on('comment_delete', onCommentDelete);
+        store.on('comment_submit_fail', onCommentSubmitFail);
+        store.on('comment_submit', onCommentSubmit);
+
+        beforeAll(() => {
+            (globalThis as any).window.MediaCMS = {
+                // mediaId: MEDIA_ID, // @note: It doesn't belong in 'sampleGlobalMediaCMS, but it could be used
+                features: sampleGlobalMediaCMS.features,
+            };
+        });
+
+        afterAll(() => {
+            delete (globalThis as any).window.MediaCMS;
+        });
+
+        afterEach(() => {
+            jest.clearAllMocks();
+        });
+
+        test('Validate initial values', () => {
+            expect(store.get('users')).toStrictEqual([]);
+            expect(store.get('playlists')).toStrictEqual([]);
+            expect(store.get('media-load-error-type')).toBe(null);
+            expect(store.get('media-load-error-message')).toBe(null);
+            expect(store.get('media-comments')).toStrictEqual([]);
+            expect(store.get('media-data')).toBe(null);
+            expect(store.get('media-id')).toBe(MEDIA_ID);
+            expect(store.get('media-url')).toBe('N/A');
+            expect(store.get('media-edit-subtitle-url')).toBe(null);
+            expect(store.get('media-likes')).toBe('N/A');
+            expect(store.get('media-dislikes')).toBe('N/A');
+            expect(store.get('media-summary')).toBe(null);
+            expect(store.get('media-categories')).toStrictEqual([]);
+            expect(store.get('media-tags')).toStrictEqual([]);
+            expect(store.get('media-type')).toBe(null);
+            expect(store.get('media-original-url')).toBe(null);
+            expect(store.get('media-thumbnail-url')).toBe(null);
+            expect(store.get('user-liked-media')).toBe(false);
+            expect(store.get('user-disliked-media')).toBe(false);
+            expect(store.get('media-author-thumbnail-url')).toBe(null);
+            expect(store.get('playlist-data')).toBe(null);
+            expect(store.get('playlist-id')).toBe(null);
+            expect(store.get('playlist-next-media-url')).toBe(null);
+            expect(store.get('playlist-previous-media-url')).toBe(null);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            const MEDIA_DATA = {
+                add_subtitle_url: '/MEDIA_DATA_ADD_SUBTITLE_URL',
+                author_thumbnail: 'MEDIA_DATA_AUTHOR_THUMBNAIL',
+                categories_info: [
+                    { title: 'Art', url: '/search?c=Art' },
+                    { title: 'Documentary', url: '/search?c=Documentary' },
+                ],
+                likes: 12,
+                dislikes: 4,
+                media_type: 'video',
+                original_media_url: 'MEDIA_DATA_ORIGINAL_MEDIA_URL',
+                reported_times: 0,
+                summary: 'MEDIA_DATA_SUMMARY',
+                tags_info: [
+                    { title: 'and', url: '/search?t=and' },
+                    { title: 'behavior', url: '/search?t=behavior' },
+                ],
+                thumbnail_url: 'MEDIA_DATA_THUMBNAIL_URL',
+                url: '/MEDIA_DATA_URL',
+            };
+            const PLAYLIST_DATA = {
+                playlist_media: [
+                    { friendly_token: `${MEDIA_ID}_2`, url: '/PLAYLIT_MEDIA_URL_2' },
+                    { friendly_token: MEDIA_ID, url: '/PLAYLIT_MEDIA_URL_1' },
+                    { friendly_token: `${MEDIA_ID}_3`, url: '/PLAYLIT_MEDIA_URL_3' },
+                ],
+            };
+            const USER_PLAYLIST_DATA = { playlist_media: [{ url: 'm=PLAYLIST_MEDIA_ID' }] };
+
+            test('Action type: "LOAD_MEDIA_DATA"', () => {
+                const MEDIA_API_URL = `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}`;
+                const MEDIA_COMMENTS_API_URL = `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}/comments`;
+                const PLAYLIST_API_URL = `${sampleMediaCMSConfig.api.playlists}/${PLAYLIST_ID}`;
+                const USERS_API_URL = sampleMediaCMSConfig.api.users;
+                const USER_PLAYLISTS_API_URL = `${sampleMediaCMSConfig.api.user.playlists}${sampleMediaCMSConfig.member.username}`;
+                const USER_PLAYLIST_API_URL = `${sampleMediaCMSConfig.site.url}/${'PLAYLIST_API_URL'.replace(/^\//g, '')}`;
+
+                const MEDIA_COMMENTS_RESULTS = ['COMMENT_ID_1'];
+                const USERS_RESULTS = ['USER_ID_1'];
+                const USER_PLAYLISTS_RESULTS = [
+                    {
+                        url: `/${PLAYLIST_ID}`,
+                        user: sampleMediaCMSConfig.member.username,
+                        title: 'PLAYLIST_TITLE',
+                        description: 'PLAYLIST_DECRIPTION',
+                        add_date: 'PLAYLIST_ADD_DATE',
+                        api_url: 'PLAYLIST_API_URL',
+                    },
+                ];
+
+                (getRequest as jest.Mock).mockImplementation((url, _cache, successCallback, _failCallback) => {
+                    if (url === PLAYLIST_API_URL) {
+                        return successCallback({ data: PLAYLIST_DATA });
+                    }
+
+                    if (url === USER_PLAYLIST_API_URL) {
+                        return successCallback({ data: USER_PLAYLIST_DATA });
+                    }
+
+                    if (url === MEDIA_API_URL) {
+                        return successCallback({ data: MEDIA_DATA });
+                    }
+
+                    if (url === USERS_API_URL) {
+                        return successCallback({ data: { count: USERS_RESULTS.length, results: USERS_RESULTS } });
+                    }
+
+                    if (url === MEDIA_COMMENTS_API_URL) {
+                        return successCallback({
+                            data: { count: MEDIA_COMMENTS_RESULTS.length, results: MEDIA_COMMENTS_RESULTS },
+                        });
+                    }
+
+                    if (url === USER_PLAYLISTS_API_URL) {
+                        return successCallback({
+                            data: { count: USER_PLAYLISTS_RESULTS.length, results: USER_PLAYLISTS_RESULTS },
+                        });
+                    }
+                });
+
+                handler({ type: 'LOAD_MEDIA_DATA' });
+
+                expect(getRequest).toHaveBeenCalledTimes(6);
+
+                expect(getRequest).toHaveBeenCalledWith(
+                    PLAYLIST_API_URL,
+                    false,
+                    store.playlistDataResponse,
+                    store.playlistDataErrorResponse
+                );
+                expect(getRequest).toHaveBeenCalledWith(
+                    MEDIA_API_URL,
+                    false,
+                    store.dataResponse,
+                    store.dataErrorResponse
+                );
+                expect(getRequest).toHaveBeenCalledWith(MEDIA_COMMENTS_API_URL, false, store.commentsResponse);
+                expect(getRequest).toHaveBeenCalledWith(USERS_API_URL, false, store.usersResponse);
+                expect(getRequest).toHaveBeenCalledWith(USER_PLAYLISTS_API_URL, false, store.playlistsResponse);
+                expect(getRequest).toHaveBeenCalledWith(USER_PLAYLIST_API_URL, false, expect.any(Function));
+
+                expect(onLoadedViewerPlaylistData).toHaveBeenCalledTimes(1);
+                expect(onLoadedPagePlaylistData).toHaveBeenCalledTimes(1);
+                expect(onLoadedViewerPlaylistError).toHaveBeenCalledTimes(0);
+                expect(onLoadedVideoData).toHaveBeenCalledTimes(1);
+                expect(onLoadedImageData).toHaveBeenCalledTimes(0);
+                expect(onLoadedMediaData).toHaveBeenCalledTimes(1);
+                expect(onLoadedMediaError).toHaveBeenCalledTimes(0);
+                expect(onCommentsLoad).toHaveBeenCalledTimes(1);
+                expect(onUsersLoad).toHaveBeenCalledTimes(1);
+                expect(onPlaylistsLoad).toHaveBeenCalledTimes(1);
+                expect(onLikedMediaFailedRequest).toHaveBeenCalledTimes(0);
+                expect(onLikedMedia).toHaveBeenCalledTimes(0);
+                expect(onDislikedMediaFailedRequest).toHaveBeenCalledTimes(0);
+                expect(onDislikedMedia).toHaveBeenCalledTimes(0);
+                expect(onReportedMedia).toHaveBeenCalledTimes(0);
+                expect(onPlaylistCreationCompleted).toHaveBeenCalledTimes(0);
+                expect(onPlaylistCreationFailed).toHaveBeenCalledTimes(0);
+                expect(onMediaPlaylistAdditionCompleted).toHaveBeenCalledTimes(0);
+                expect(onMediaPlaylistAdditionFailed).toHaveBeenCalledTimes(0);
+                expect(onMediaPlaylistRemovalCompleted).toHaveBeenCalledTimes(0);
+                expect(onMediaPlaylistRemovalFailed).toHaveBeenCalledTimes(0);
+                expect(onCopiedMediaLink).toHaveBeenCalledTimes(0);
+                expect(onCopiedEmbedMediaCode).toHaveBeenCalledTimes(0);
+                expect(onMediaDelete).toHaveBeenCalledTimes(0);
+                expect(onMediaDeleteFail).toHaveBeenCalledTimes(0);
+                expect(onCommentDeleteFail).toHaveBeenCalledTimes(0);
+                expect(onCommentDelete).toHaveBeenCalledTimes(0);
+                expect(onCommentSubmitFail).toHaveBeenCalledTimes(0);
+                expect(onCommentSubmit).toHaveBeenCalledTimes(0);
+
+                expect(store.isVideo()).toBeTruthy();
+
+                expect(store.get('users')).toStrictEqual(USERS_RESULTS);
+                expect(store.get('playlists')).toStrictEqual([
+                    {
+                        playlist_id: PLAYLIST_ID,
+                        title: 'PLAYLIST_TITLE',
+                        description: 'PLAYLIST_DECRIPTION',
+                        add_date: 'PLAYLIST_ADD_DATE',
+                        media_list: ['PLAYLIST_MEDIA_ID'],
+                    },
+                ]);
+                expect(store.get('media-load-error-type')).toBe(null);
+                expect(store.get('media-load-error-message')).toBe(null);
+                expect(store.get('media-comments')).toStrictEqual(MEDIA_COMMENTS_RESULTS);
+                expect(store.get('media-data')).toBe(MEDIA_DATA);
+                expect(store.get('media-id')).toBe(MEDIA_ID);
+                expect(store.get('media-url')).toBe(MEDIA_DATA.url);
+                expect(store.get('media-edit-subtitle-url')).toBe(MEDIA_DATA.add_subtitle_url);
+                expect(store.get('media-likes')).toBe(MEDIA_DATA.likes);
+                expect(store.get('media-dislikes')).toBe(MEDIA_DATA.dislikes);
+                expect(store.get('media-summary')).toBe(MEDIA_DATA.summary);
+                expect(store.get('media-categories')).toStrictEqual(MEDIA_DATA.categories_info);
+                expect(store.get('media-tags')).toStrictEqual(MEDIA_DATA.tags_info);
+                expect(store.get('media-type')).toBe(MEDIA_DATA.media_type);
+                expect(store.get('media-original-url')).toBe(MEDIA_DATA.original_media_url);
+                expect(store.get('media-thumbnail-url')).toBe(MEDIA_DATA.thumbnail_url);
+                expect(store.get('user-liked-media')).toBe(false);
+                expect(store.get('user-disliked-media')).toBe(false);
+                expect(store.get('media-author-thumbnail-url')).toBe(`/${MEDIA_DATA.author_thumbnail}`);
+                expect(store.get('playlist-data')).toBe(PLAYLIST_DATA);
+                expect(store.get('playlist-id')).toBe(PLAYLIST_ID);
+                expect(store.get('playlist-next-media-url')).toBe(
+                    `${PLAYLIST_DATA.playlist_media[2].url}&pl=${PLAYLIST_ID}`
+                );
+                expect(store.get('playlist-previous-media-url')).toBe(
+                    `${PLAYLIST_DATA.playlist_media[0].url}&pl=${PLAYLIST_ID}`
+                );
+            });
+
+            test('Action type: "LIKE_MEDIA"', () => {
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock post request
+                (postRequest as jest.Mock).mockImplementation(
+                    (_url, _postData, _configData, _sync, successCallback, _failCallback) =>
+                        successCallback({ data: {} })
+                );
+
+                handler({ type: 'LIKE_MEDIA' });
+
+                // Verify postRequest was called with correct parameters
+                expect(postRequest).toHaveBeenCalledWith(
+                    `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}/actions`,
+                    { type: 'like' },
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.likeActionResponse,
+                    expect.any(Function)
+                );
+
+                expect(onLikedMedia).toHaveBeenCalledTimes(1);
+
+                expect(store.get('media-likes')).toBe(MEDIA_DATA.likes + 1);
+                expect(store.get('media-dislikes')).toBe(MEDIA_DATA.dislikes);
+                expect(store.get('user-liked-media')).toBe(true);
+                expect(store.get('user-disliked-media')).toBe(false);
+            });
+
+            test('Action type: "DISLIKE_MEDIA"', () => {
+                handler({ type: 'DISLIKE_MEDIA' });
+
+                expect(postRequest).toHaveBeenCalledTimes(0);
+                expect(onDislikedMedia).toHaveBeenCalledTimes(0);
+
+                expect(store.get('media-likes')).toBe(MEDIA_DATA.likes + 1);
+                expect(store.get('media-dislikes')).toBe(MEDIA_DATA.dislikes);
+                expect(store.get('user-liked-media')).toBe(true);
+                expect(store.get('user-disliked-media')).toBe(false);
+            });
+
+            test('Action type: "REPORT_MEDIA"', () => {
+                const REPORT_DESCRIPTION = 'REPORT_DESCRIPTION';
+
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock post request
+                (postRequest as jest.Mock).mockImplementation(
+                    (_url, _postData, _configData, _sync, successCallback, _failCallback) =>
+                        successCallback({ data: {} })
+                );
+
+                handler({ type: 'REPORT_MEDIA', reportDescription: REPORT_DESCRIPTION });
+
+                // Verify postRequest was called with correct parameters
+                expect(postRequest).toHaveBeenCalledWith(
+                    `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}/actions`,
+                    { type: 'report', extra_info: REPORT_DESCRIPTION },
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.reportActionResponse,
+                    store.reportActionResponse
+                );
+
+                expect(onReportedMedia).toHaveBeenCalledTimes(1);
+            });
+
+            test('Action type: "COPY_SHARE_LINK"', () => {
+                document.execCommand = jest.fn(); // @deprecated
+                const inputElement = document.createElement('input');
+                handler({ type: 'COPY_SHARE_LINK', inputElement });
+                expect(onCopiedMediaLink).toHaveBeenCalledTimes(1);
+                expect(document.execCommand).toHaveBeenCalledWith('copy');
+            });
+
+            test('Action type: "COPY_EMBED_MEDIA_CODE"', () => {
+                document.execCommand = jest.fn(); // @deprecated
+                const inputElement = document.createElement('input');
+                handler({ type: 'COPY_EMBED_MEDIA_CODE', inputElement });
+                expect(onCopiedEmbedMediaCode).toHaveBeenCalledTimes(1);
+                expect(document.execCommand).toHaveBeenCalledWith('copy');
+            });
+
+            describe('Action type: "REMOVE_MEDIA"', () => {
+                const mockCSRFtoken = 'test-csrf-token';
+
+                beforeEach(() => {
+                    // Mock the CSRF token
+                    (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                    jest.useFakeTimers();
+                });
+
+                afterEach(() => {
+                    // Verify deleteRequest was called with correct parameters
+                    expect(deleteRequest).toHaveBeenCalledWith(
+                        `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}`,
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        store.removeMediaResponse,
+                        store.removeMediaFail
+                    );
+
+                    // Fast-forward time
+                    jest.advanceTimersByTime(100);
+
+                    jest.useRealTimers();
+                });
+
+                test('Successful', () => {
+                    // Mock delete request
+                    (deleteRequest as jest.Mock).mockImplementation(
+                        (_url, _configData, _sync, successCallback, _failCallback) => successCallback({ status: 204 })
+                    );
+
+                    handler({ type: 'REMOVE_MEDIA' });
+
+                    expect(onMediaDelete).toHaveBeenCalledTimes(1);
+                    expect(onMediaDelete).toHaveBeenCalledWith(MEDIA_ID);
+                });
+
+                test('Failed', () => {
+                    // Mock delete request
+                    (deleteRequest as jest.Mock).mockImplementation(
+                        (_url, _configData, _sync, _successCallback, failCallback) => failCallback({})
+                    );
+
+                    handler({ type: 'REMOVE_MEDIA' });
+
+                    expect(onMediaDeleteFail).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            describe('Action type: "SUBMIT_COMMENT"', () => {
+                const COMMENT_TEXT = 'COMMENT_TEXT';
+                const COMMENT_UID = 'COMMENT_UID';
+
+                const mockCSRFtoken = 'test-csrf-token';
+
+                beforeEach(() => {
+                    // Mock the CSRF token
+                    (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                    jest.useFakeTimers();
+                });
+
+                afterEach(() => {
+                    // Verify postRequest was called with correct parameters
+                    expect(postRequest).toHaveBeenCalledWith(
+                        `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}/comments`,
+                        { text: COMMENT_TEXT },
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        store.submitCommentResponse,
+                        store.submitCommentFail
+                    );
+
+                    // Fast-forward time
+                    jest.advanceTimersByTime(100);
+
+                    jest.useRealTimers();
+                });
+
+                test('Successful', () => {
+                    // Mock post request
+                    (postRequest as jest.Mock).mockImplementation(
+                        (_url, _postData, _configData, _sync, successCallback, _failCallback) =>
+                            successCallback({ data: { uid: COMMENT_UID }, status: 201 })
+                    );
+
+                    handler({ type: 'SUBMIT_COMMENT', commentText: COMMENT_TEXT });
+
+                    expect(onCommentSubmit).toHaveBeenCalledTimes(1);
+                    expect(onCommentSubmit).toHaveBeenCalledWith(COMMENT_UID);
+                });
+
+                test('Failed', () => {
+                    // Mock post request
+                    (postRequest as jest.Mock).mockImplementation(
+                        (_url, _postData, _configData, _sync, _successCallback, failCallback) => failCallback()
+                    );
+
+                    handler({ type: 'SUBMIT_COMMENT', commentText: COMMENT_TEXT });
+
+                    expect(onCommentSubmitFail).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            describe('Action type: "DELETE_COMMENT"', () => {
+                const COMMENT_ID = 'COMMENT_ID';
+
+                const mockCSRFtoken = 'test-csrf-token';
+
+                beforeEach(() => {
+                    // Mock the CSRF token
+                    (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                    jest.useFakeTimers();
+                });
+
+                afterEach(() => {
+                    // Verify deleteRequest was called with correct parameters
+                    expect(deleteRequest).toHaveBeenCalledWith(
+                        `${sampleMediaCMSConfig.api.media}/${MEDIA_ID}/comments/${COMMENT_ID}`,
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        store.removeCommentResponse,
+                        store.removeCommentFail
+                    );
+
+                    // Fast-forward time
+                    jest.advanceTimersByTime(100);
+
+                    jest.useRealTimers();
+                });
+
+                test('Successful', () => {
+                    // Mock delete request
+                    (deleteRequest as jest.Mock).mockImplementation(
+                        (_url, _configData, _sync, successCallback, _failCallback) => successCallback({ status: 204 })
+                    );
+
+                    handler({ type: 'DELETE_COMMENT', commentId: COMMENT_ID });
+
+                    expect(onCommentDelete).toHaveBeenCalledTimes(1);
+                });
+
+                test('Failed', () => {
+                    // Mock delete request
+                    (deleteRequest as jest.Mock).mockImplementation(
+                        (_url, _configData, _sync, _successCallback, failCallback) => failCallback()
+                    );
+
+                    handler({ type: 'DELETE_COMMENT', commentId: COMMENT_ID });
+
+                    expect(onCommentDeleteFail).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            describe('Action type: "CREATE_PLAYLIST"', () => {
+                const NEW_PLAYLIST_DATA = {
+                    title: 'NEW_PLAYLIST_DATA_TITLE',
+                    description: 'NEW_PLAYLIST_DATA_DESCRIPTION',
+                };
+
+                const mockCSRFtoken = 'test-csrf-token';
+
+                beforeEach(() => {
+                    // Mock the CSRF token
+                    (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+                });
+
+                afterEach(() => {
+                    // Verify postRequest was called with correct parameters
+                    expect(postRequest).toHaveBeenCalledWith(
+                        sampleMediaCMSConfig.api.playlists,
+                        NEW_PLAYLIST_DATA,
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        expect.any(Function),
+                        expect.any(Function)
+                    );
+                });
+
+                test('Successful', () => {
+                    const NEW_PLAYLIST_RESPONSE_DATA = { uid: 'COMMENT_UID' };
+
+                    // Mock post request
+                    (postRequest as jest.Mock).mockImplementation(
+                        (_url, _postData, _configData, _sync, successCallback, _failCallback) =>
+                            successCallback({ data: NEW_PLAYLIST_RESPONSE_DATA, status: 201 })
+                    );
+
+                    handler({ type: 'CREATE_PLAYLIST', playlist_data: NEW_PLAYLIST_DATA });
+
+                    // Verify postRequest was called with correct parameters
+                    expect(postRequest).toHaveBeenCalledWith(
+                        sampleMediaCMSConfig.api.playlists,
+                        NEW_PLAYLIST_DATA,
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        expect.any(Function),
+                        expect.any(Function)
+                    );
+
+                    expect(onPlaylistCreationCompleted).toHaveBeenCalledTimes(1);
+                    expect(onPlaylistCreationCompleted).toHaveBeenCalledWith(NEW_PLAYLIST_RESPONSE_DATA);
+                });
+
+                test('Failed', () => {
+                    // Mock post request
+                    (postRequest as jest.Mock).mockImplementation(
+                        (_url, _postData, _configData, _sync, _successCallback, failCallback) => failCallback()
+                    );
+
+                    handler({ type: 'CREATE_PLAYLIST', playlist_data: NEW_PLAYLIST_DATA });
+
+                    expect(onPlaylistCreationFailed).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            describe('Action type: "ADD_MEDIA_TO_PLAYLIST"', () => {
+                const NEW_PLAYLIST_MEDIA_ID = 'NEW_PLAYLIST_MEDIA_ID';
+                const mockCSRFtoken = 'test-csrf-token';
+
+                beforeEach(() => {
+                    // Mock the CSRF token
+                    (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+                });
+
+                afterEach(() => {
+                    // Verify postRequest was called with correct parameters
+                    expect(putRequest).toHaveBeenCalledWith(
+                        `${sampleMediaCMSConfig.api.playlists}/${PLAYLIST_ID}`,
+                        { type: 'add', media_friendly_token: NEW_PLAYLIST_MEDIA_ID },
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        expect.any(Function),
+                        expect.any(Function)
+                    );
+                });
+
+                test('Successful', () => {
+                    // Mock put request
+                    (putRequest as jest.Mock).mockImplementation(
+                        (_url, _putData, _configData, _sync, successCallback, _failCallback) =>
+                            successCallback({ data: {} })
+                    );
+
+                    handler({
+                        type: 'ADD_MEDIA_TO_PLAYLIST',
+                        playlist_id: PLAYLIST_ID,
+                        media_id: NEW_PLAYLIST_MEDIA_ID,
+                    });
+
+                    expect(onMediaPlaylistAdditionCompleted).toHaveBeenCalledTimes(1);
+                });
+
+                test('Failed', () => {
+                    // Mock put request
+                    (putRequest as jest.Mock).mockImplementation(
+                        (_url, _putData, _configData, _sync, _successCallback, failCallback) => failCallback()
+                    );
+
+                    handler({
+                        type: 'ADD_MEDIA_TO_PLAYLIST',
+                        playlist_id: PLAYLIST_ID,
+                        media_id: NEW_PLAYLIST_MEDIA_ID,
+                    });
+
+                    expect(onMediaPlaylistAdditionFailed).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            describe('Action type: "REMOVE_MEDIA_FROM_PLAYLIST"', () => {
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                afterEach(() => {
+                    // Verify postRequest was called with correct parameters
+                    expect(putRequest).toHaveBeenCalledWith(
+                        `${sampleMediaCMSConfig.api.playlists}/${PLAYLIST_ID}`,
+                        { type: 'remove', media_friendly_token: MEDIA_ID },
+                        { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                        false,
+                        expect.any(Function),
+                        expect.any(Function)
+                    );
+                });
+
+                test('Successful', () => {
+                    // Mock put request
+                    (putRequest as jest.Mock).mockImplementation(
+                        (_url, _putData, _configData, _sync, successCallback, _failCallback) =>
+                            successCallback({ data: {} })
+                    );
+
+                    handler({ type: 'REMOVE_MEDIA_FROM_PLAYLIST', playlist_id: PLAYLIST_ID, media_id: MEDIA_ID });
+
+                    expect(onMediaPlaylistRemovalCompleted).toHaveBeenCalledTimes(1);
+                });
+
+                test('Failed', () => {
+                    // Mock put request
+                    (putRequest as jest.Mock).mockImplementation(
+                        (_url, _putData, _configData, _sync, _successCallback, failCallback) => failCallback()
+                    );
+
+                    handler({ type: 'REMOVE_MEDIA_FROM_PLAYLIST', playlist_id: PLAYLIST_ID, media_id: MEDIA_ID });
+
+                    expect(onMediaPlaylistRemovalFailed).toHaveBeenCalledTimes(1);
+                });
+            });
+
+            test('Action type: "APPEND_NEW_PLAYLIST"', () => {
+                const NEW_USER_PLAYLIST = {
+                    add_date: 'PLAYLIST_ADD_DATE_2',
+                    description: 'PLAYLIST_DECRIPTION_2',
+                    media_list: ['PLAYLIST_MEDIA_ID'],
+                    playlist_id: 'PLAYLIST_ID',
+                    title: 'PLAYLIST_TITLE_2',
+                };
+
+                handler({ type: 'APPEND_NEW_PLAYLIST', playlist_data: NEW_USER_PLAYLIST });
+
+                expect(onPlaylistsLoad).toHaveBeenCalledTimes(1);
+
+                expect(store.get('playlists')).toStrictEqual([
+                    {
+                        add_date: 'PLAYLIST_ADD_DATE',
+                        description: 'PLAYLIST_DECRIPTION',
+                        media_list: ['PLAYLIST_MEDIA_ID'],
+                        playlist_id: PLAYLIST_ID,
+                        title: 'PLAYLIST_TITLE',
+                    },
+                    NEW_USER_PLAYLIST,
+                ]);
+            });
+        });
+    });
+});

frontend/tests/utils/stores/PageStore.test.ts

@@ -0,0 +1,162 @@
+import { BrowserCache } from '../../../src/static/js/utils/classes';
+import store from '../../../src/static/js/utils/stores/PageStore';
+
+import { sampleMediaCMSConfig } from '../../tests-constants';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: (key: string) => (key === 'media-auto-play' ? false : undefined),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    BrowserEvents: jest.fn().mockImplementation(() => ({
+        doc: jest.fn(),
+        win: jest.fn(),
+    })),
+    exportStore: jest.fn((store) => store),
+}));
+
+describe('utils/store', () => {
+    afterAll(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('PageStore', () => {
+        const handler = store.actions_handler.bind(store);
+
+        const onInit = jest.fn();
+        const onToggleAutoPlay = jest.fn();
+        const onAddNotification = jest.fn();
+
+        store.on('page_init', onInit);
+        store.on('switched_media_auto_play', onToggleAutoPlay);
+        store.on('added_notification', onAddNotification);
+
+        test('Validate initial values', () => {
+            // BrowserCache mock
+            expect(store.get('browser-cache').get('media-auto-play')).toBe(false);
+            expect(store.get('browser-cache').get('ANY')).toBe(undefined);
+
+            // Autoplay media files
+            expect(store.get('media-auto-play')).toBe(false);
+
+            // Configuration
+            expect(store.get('config-contents')).toStrictEqual(sampleMediaCMSConfig.contents);
+            expect(store.get('config-enabled')).toStrictEqual(sampleMediaCMSConfig.enabled);
+            expect(store.get('config-media-item')).toStrictEqual(sampleMediaCMSConfig.media.item);
+            expect(store.get('config-options')).toStrictEqual(sampleMediaCMSConfig.options);
+            expect(store.get('config-site')).toStrictEqual(sampleMediaCMSConfig.site);
+
+            // Playlists API path
+            expect(store.get('api-playlists')).toStrictEqual(sampleMediaCMSConfig.api.playlists);
+
+            // Notifications
+            expect(store.get('notifications')).toStrictEqual([]);
+            expect(store.get('notifications-size')).toBe(0);
+
+            expect(store.get('current-page')).toBe(undefined);
+        });
+
+        test('Trigger and validate browser events behavior', () => {
+            const docVisChange = jest.fn();
+            const winScroll = jest.fn();
+            const winResize = jest.fn();
+
+            store.on('document_visibility_change', docVisChange);
+            store.on('window_scroll', winScroll);
+            store.on('window_resize', winResize);
+
+            store.onDocumentVisibilityChange();
+            store.onWindowScroll();
+            store.onWindowResize();
+
+            expect(docVisChange).toHaveBeenCalled();
+            expect(winScroll).toHaveBeenCalled();
+            expect(winResize).toHaveBeenCalledTimes(1);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            test('Action type: "INIT_PAGE"', () => {
+                handler({ type: 'INIT_PAGE', page: 'home' });
+                expect(onInit).toHaveBeenCalledTimes(1);
+                expect(store.get('current-page')).toBe('home');
+
+                handler({ type: 'INIT_PAGE', page: 'about' });
+                expect(onInit).toHaveBeenCalledTimes(2);
+                expect(store.get('current-page')).toBe('about');
+
+                handler({ type: 'INIT_PAGE', page: 'profile' });
+                expect(onInit).toHaveBeenCalledTimes(3);
+                expect(store.get('current-page')).toBe('profile');
+
+                expect(onInit).toHaveBeenCalledWith();
+
+                expect(onToggleAutoPlay).toHaveBeenCalledTimes(0);
+                expect(onAddNotification).toHaveBeenCalledTimes(0);
+            });
+
+            test('Action type: "TOGGLE_AUTO_PLAY"', () => {
+                const browserCacheInstance = (BrowserCache as jest.Mock).mock.results[0].value;
+                const browserCacheSetSpy = browserCacheInstance.set;
+
+                const initialValue = store.get('media-auto-play');
+
+                handler({ type: 'TOGGLE_AUTO_PLAY' });
+
+                expect(onToggleAutoPlay).toHaveBeenCalledWith();
+                expect(onToggleAutoPlay).toHaveBeenCalledTimes(1);
+
+                expect(store.get('media-auto-play')).toBe(!initialValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('media-auto-play', !initialValue);
+
+                browserCacheSetSpy.mockRestore();
+            });
+
+            test('Action type: "ADD_NOTIFICATION"', () => {
+                const notificationMsg1 = 'NOTIFICATION_MSG_1';
+                const notificationMsg2 = 'NOTIFICATION_MSG_2';
+                const invalidNotification = 44;
+
+                // Add notification
+                handler({ type: 'ADD_NOTIFICATION', notification: notificationMsg1 });
+                expect(onAddNotification).toHaveBeenCalledWith();
+                expect(onAddNotification).toHaveBeenCalledTimes(1);
+                expect(store.get('notifications-size')).toBe(1);
+
+                const currentNotifications = store.get('notifications');
+                expect(currentNotifications.length).toBe(1);
+                expect(typeof currentNotifications[0][0]).toBe('string');
+                expect(currentNotifications[0][1]).toBe(notificationMsg1);
+
+                expect(store.get('notifications-size')).toBe(0);
+                expect(store.get('notifications')).toStrictEqual([]);
+
+                // Add another notification
+                handler({ type: 'ADD_NOTIFICATION', notification: notificationMsg2 });
+
+                expect(onAddNotification).toHaveBeenCalledWith();
+                expect(onAddNotification).toHaveBeenCalledTimes(2);
+
+                expect(store.get('notifications-size')).toBe(1);
+                expect(store.get('notifications')[0][1]).toBe(notificationMsg2);
+
+                expect(store.get('notifications-size')).toBe(0);
+                expect(store.get('notifications')).toStrictEqual([]);
+
+                // Add invalid notification
+                handler({ type: 'ADD_NOTIFICATION', notification: invalidNotification });
+                expect(onAddNotification).toHaveBeenCalledWith();
+                expect(onAddNotification).toHaveBeenCalledTimes(3);
+
+                expect(store.get('notifications-size')).toBe(0);
+                expect(store.get('notifications')).toStrictEqual([]);
+            });
+        });
+    });
+});

frontend/tests/utils/stores/PlaylistPageStore.test.ts

@@ -0,0 +1,390 @@
+import {
+    publishedOnDate,
+    getRequest,
+    postRequest,
+    deleteRequest,
+    csrfToken,
+} from '../../../src/static/js/utils/helpers';
+import store from '../../../src/static/js/utils/stores/PlaylistPageStore';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    publishedOnDate: jest.fn(),
+    exportStore: jest.fn((store) => store),
+    getRequest: jest.fn(),
+    postRequest: jest.fn(),
+    deleteRequest: jest.fn(),
+    csrfToken: jest.fn(),
+}));
+
+describe('utils/store', () => {
+    beforeAll(() => {
+        (globalThis as any).window.MediaCMS = { playlistId: null };
+    });
+
+    afterAll(() => {
+        delete (globalThis as any).window.MediaCMS;
+    });
+
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('PlaylistPageStore', () => {
+        const handler = store.actions_handler.bind(store);
+
+        const onLoadedPlaylistData = jest.fn();
+        const onLoadedPlaylistEerror = jest.fn();
+        const onLoadedMediaError = jest.fn();
+        const onPlaylistUpdateCompleted = jest.fn();
+        const onPlaylistUpdateFailed = jest.fn();
+        const onPlaylistRemovalCompleted = jest.fn();
+        const onPlaylistRemovalFailed = jest.fn();
+        const onSavedUpdated = jest.fn();
+        const onReorderedMediaInPlaylist = jest.fn();
+        const onRemovedMediaFromPlaylist = jest.fn();
+
+        store.on('loaded_playlist_data', onLoadedPlaylistData);
+        store.on('loaded_playlist_error', onLoadedPlaylistEerror);
+        store.on('loaded_media_error', onLoadedMediaError); // @todo: It doesn't get called
+        store.on('playlist_update_completed', onPlaylistUpdateCompleted);
+        store.on('playlist_update_failed', onPlaylistUpdateFailed);
+        store.on('playlist_removal_completed', onPlaylistRemovalCompleted);
+        store.on('playlist_removal_failed', onPlaylistRemovalFailed);
+        store.on('saved-updated', onSavedUpdated);
+        store.on('reordered_media_in_playlist', onReorderedMediaInPlaylist);
+        store.on('removed_media_from_playlist', onRemovedMediaFromPlaylist);
+
+        test('Validate initial values', () => {
+            expect(store.get('INVALID_TYPE')).toBe(null);
+            expect(store.get('playlistId')).toBe(null);
+            expect(store.get('logged-in-user-playlist')).toBe(false);
+            expect(store.get('playlist-media')).toStrictEqual([]);
+            expect(store.get('visibility')).toBe('public');
+            expect(store.get('visibility-icon')).toBe(null);
+            //     // expect(store.get('total-items')).toBe(0); // @todo: It throws error
+            expect(store.get('views-count')).toBe('N/A');
+            expect(store.get('title')).toBe(null);
+            expect(store.get('edit-link')).toBe('#');
+            expect(store.get('thumb')).toBe(null);
+            expect(store.get('description')).toBe(null);
+            expect(store.get('author-username')).toBe(null);
+            expect(store.get('author-name')).toBe(null);
+            expect(store.get('author-link')).toBe(null);
+            expect(store.get('author-thumb')).toBe(null);
+            expect(store.get('saved-playlist')).toBe(false);
+            expect(store.get('date-label')).toBe(null);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            test('Action type: "LOAD_PLAYLIST_DATA" - failed', () => {
+                const warnSpy = jest.spyOn(console, 'warn').mockImplementation(() => {});
+                const loadDataSpy = jest.spyOn(store, 'loadData');
+
+                handler({ type: 'LOAD_PLAYLIST_DATA' });
+
+                expect(loadDataSpy).toHaveBeenCalledTimes(1);
+                expect(loadDataSpy).toHaveReturnedWith(false);
+
+                expect(warnSpy).toHaveBeenCalledTimes(1);
+                expect(warnSpy).toHaveBeenCalledWith('Invalid playlist id:', '');
+
+                expect(store.get('playlistId')).toBe(null);
+
+                loadDataSpy.mockRestore();
+                warnSpy.mockRestore();
+            });
+
+            test('Action type: "LOAD_PLAYLIST_DATA" - completed successful', () => {
+                const playlistId = 'PLAYLIST_ID_1';
+                window.history.pushState({}, '', `/playlists/${playlistId}`);
+
+                // Mock get request
+                const mockGetRequestResponse = {
+                    data: {
+                        add_date: Date.now(),
+                        description: 'DESCRIPTION',
+                        playlist_media: [],
+                        title: 'TITLE',
+                        user: 'USER',
+                        user_thumbnail_url: 'USER_THUMB_URL',
+                    },
+                };
+
+                (getRequest as jest.Mock).mockImplementation((_url, _cache, successCallback, _failCallback) =>
+                    successCallback(mockGetRequestResponse)
+                );
+
+                const loadDataSpy = jest.spyOn(store, 'loadData');
+                const dataResponseSpy = jest.spyOn(store, 'dataResponse');
+
+                handler({ type: 'LOAD_PLAYLIST_DATA' });
+
+                expect(store.get('playlistId')).toBe(playlistId);
+                expect(store.get('author-name')).toBe(mockGetRequestResponse.data.user);
+                expect(store.get('author-link')).toBe(`/user/${mockGetRequestResponse.data.user}`);
+                expect(store.get('author-thumb')).toBe(`/${mockGetRequestResponse.data.user_thumbnail_url}`);
+
+                expect(store.get('date-label')).toBe('Created on undefined');
+                expect(publishedOnDate).toHaveBeenCalledWith(new Date(mockGetRequestResponse.data.add_date), 3);
+
+                expect(loadDataSpy).toHaveBeenCalledTimes(1);
+                expect(loadDataSpy).toHaveReturnedWith(undefined);
+
+                expect(dataResponseSpy).toHaveBeenCalledTimes(1);
+                expect(dataResponseSpy).toHaveBeenCalledWith(mockGetRequestResponse);
+
+                // Verify getRequest was called with correct parameters
+                expect(getRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    false,
+                    store.dataResponse,
+                    store.dataErrorResponse
+                );
+
+                expect(onLoadedPlaylistData).toHaveBeenCalledTimes(1);
+                expect(onLoadedPlaylistData).toHaveBeenCalledWith();
+
+                loadDataSpy.mockRestore();
+                dataResponseSpy.mockRestore();
+            });
+
+            test('Action type: "LOAD_PLAYLIST_DATA" - completed with error', () => {
+                const playlistId = 'PLAYLIST_ID_2';
+                window.history.pushState({}, '', `/playlists/${playlistId}`);
+
+                // Mock get request
+                const mockGetRequestResponse = { type: 'private' };
+                (getRequest as jest.Mock).mockImplementation((_url, _cache, _successCallback, failCallback) =>
+                    failCallback(mockGetRequestResponse)
+                );
+
+                const loadDataSpy = jest.spyOn(store, 'loadData');
+                const dataErrorResponseSpy = jest.spyOn(store, 'dataErrorResponse');
+
+                handler({ type: 'LOAD_PLAYLIST_DATA' });
+
+                expect(store.get('playlistId')).toBe(playlistId);
+
+                expect(loadDataSpy).toHaveBeenCalledTimes(1);
+                expect(loadDataSpy).toHaveReturnedWith(undefined);
+
+                expect(dataErrorResponseSpy).toHaveBeenCalledTimes(1);
+                expect(dataErrorResponseSpy).toHaveBeenCalledWith(mockGetRequestResponse);
+
+                // Verify getRequest was called with correct parameters
+                expect(getRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    false,
+                    store.dataResponse,
+                    store.dataErrorResponse
+                );
+
+                expect(onLoadedPlaylistEerror).toHaveBeenCalledTimes(1);
+                expect(onLoadedPlaylistEerror).toHaveBeenCalledWith();
+
+                loadDataSpy.mockRestore();
+                dataErrorResponseSpy.mockRestore();
+            });
+
+            test('Action type: "TOGGLE_SAVE"', () => {
+                const initialValue = store.get('saved-playlist');
+
+                handler({ type: 'TOGGLE_SAVE' });
+
+                expect(onSavedUpdated).toHaveBeenCalledTimes(1);
+                expect(onSavedUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('saved-playlist')).toBe(!initialValue);
+            });
+
+            test('Action type: "UPDATE_PLAYLIST" - failed', () => {
+                // Mock (updated) playlist data
+                const mockPlaylistData = { title: 'PLAYLIST_TITLE', description: 'PLAYLIST_DESCRIPTION' };
+
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock post request
+                (postRequest as jest.Mock).mockImplementation(
+                    (_url, _postData, _configData, _sync, _successCallback, failCallback) => failCallback()
+                );
+
+                const initialStoreData = {
+                    title: store.get('title'),
+                    description: store.get('description'),
+                };
+
+                expect(store.get('title')).toBe(initialStoreData.title);
+                expect(store.get('description')).toBe(initialStoreData.description);
+
+                handler({ type: 'UPDATE_PLAYLIST', playlist_data: mockPlaylistData });
+
+                expect(store.get('title')).toBe(initialStoreData.title);
+                expect(store.get('description')).toBe(initialStoreData.description);
+
+                // Verify postRequest was called with correct parameters
+                expect(postRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    mockPlaylistData,
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.onPlaylistUpdateCompleted,
+                    store.onPlaylistUpdateFailed
+                );
+
+                expect(onPlaylistUpdateFailed).toHaveBeenCalledWith();
+            });
+
+            test('Action type: "UPDATE_PLAYLIST" - successful', () => {
+                // Mock (updated) playlist data
+                const mockPlaylistData = { title: 'PLAYLIST_TITLE', description: 'PLAYLIST_DESCRIPTION' };
+
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock post request
+                (postRequest as jest.Mock).mockImplementation(
+                    (_url, _postData, _configData, _sync, successCallback, _failCallback) =>
+                        successCallback({ data: mockPlaylistData })
+                );
+
+                const initialStoreData = {
+                    title: store.get('title'),
+                    description: store.get('description'),
+                };
+
+                expect(store.get('title')).toBe(initialStoreData.title);
+                expect(store.get('description')).toBe(initialStoreData.description);
+
+                handler({ type: 'UPDATE_PLAYLIST', playlist_data: mockPlaylistData });
+
+                expect(store.get('title')).toBe(mockPlaylistData.title);
+                expect(store.get('description')).toBe(mockPlaylistData.description);
+
+                // Verify postRequest was called with correct parameters
+                expect(postRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    mockPlaylistData,
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.onPlaylistUpdateCompleted,
+                    store.onPlaylistUpdateFailed
+                );
+
+                expect(onPlaylistUpdateCompleted).toHaveBeenCalledWith(mockPlaylistData);
+            });
+
+            test('Action type: "REMOVE_PLAYLIST" - failed', () => {
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock delete request
+                (deleteRequest as jest.Mock).mockImplementation(
+                    (_url, _config, _sync, _successCallback, failCallback) => failCallback()
+                );
+
+                handler({ type: 'REMOVE_PLAYLIST' });
+
+                // Verify deleteRequest was called with correct parameters
+                expect(deleteRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.onPlaylistRemovalCompleted,
+                    store.onPlaylistRemovalFailed
+                );
+
+                expect(onPlaylistRemovalFailed).toHaveBeenCalledWith();
+            });
+
+            test('Action type: "REMOVE_PLAYLIST" - completed successful', () => {
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock delete request
+                const deleteRequestResponse = { status: 204 };
+                (deleteRequest as jest.Mock).mockImplementation(
+                    (_url, _config, _sync, successCallback, _failCallback) => successCallback(deleteRequestResponse)
+                );
+
+                handler({ type: 'REMOVE_PLAYLIST' });
+
+                // Verify deleteRequest was called with correct parameters
+                expect(deleteRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.onPlaylistRemovalCompleted,
+                    store.onPlaylistRemovalFailed
+                );
+
+                expect(onPlaylistRemovalCompleted).toHaveBeenCalledWith(deleteRequestResponse);
+            });
+
+            test('Action type: "REMOVE_PLAYLIST" - completed with invalid status code', () => {
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock delete request
+                const deleteRequestResponse = { status: 403 };
+                (deleteRequest as jest.Mock).mockImplementation(
+                    (_url, _config, _sync, successCallback, _failCallback) => successCallback(deleteRequestResponse)
+                );
+
+                handler({ type: 'REMOVE_PLAYLIST' });
+
+                // Verify deleteRequest was called with correct parameters
+                expect(deleteRequest).toHaveBeenCalledWith(
+                    store.playlistAPIUrl,
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.onPlaylistRemovalCompleted,
+                    store.onPlaylistRemovalFailed
+                );
+
+                expect(onPlaylistRemovalFailed).toHaveBeenCalledWith();
+            });
+
+            test('Action type: "PLAYLIST_MEDIA_REORDERED"', () => {
+                // Mock playlist media data
+                const mockPlaylistMedia = [
+                    { thumbnail_url: 'THUMB_URL_1', url: '?id=MEDIA_ID_1' },
+                    { thumbnail_url: 'THUMB_URL_2', url: '?id=MEDIA_ID_2' },
+                ];
+
+                handler({ type: 'PLAYLIST_MEDIA_REORDERED', playlist_media: mockPlaylistMedia });
+
+                expect(onReorderedMediaInPlaylist).toHaveBeenCalledWith();
+
+                expect(store.get('playlist-media')).toStrictEqual(mockPlaylistMedia);
+                expect(store.get('thumb')).toBe(mockPlaylistMedia[0].thumbnail_url);
+                expect(store.get('total-items')).toBe(mockPlaylistMedia.length);
+            });
+
+            test('Action type: "MEDIA_REMOVED_FROM_PLAYLIST"', () => {
+                // Mock playlist media data
+                const mockPlaylistMedia = [
+                    { thumbnail_url: 'THUMB_URL_1', url: '?id=MEDIA_ID_1' },
+                    { thumbnail_url: 'THUMB_URL_2', url: '?id=MEDIA_ID_2' },
+                ];
+
+                handler({ type: 'PLAYLIST_MEDIA_REORDERED', playlist_media: mockPlaylistMedia });
+
+                handler({ type: 'MEDIA_REMOVED_FROM_PLAYLIST', media_id: 'MEDIA_ID_2' });
+
+                expect(store.get('playlist-media')).toStrictEqual([mockPlaylistMedia[0]]);
+                expect(store.get('thumb')).toBe(mockPlaylistMedia[0].thumbnail_url);
+                expect(store.get('total-items')).toBe(mockPlaylistMedia.length - 1);
+            });
+        });
+    });
+});

frontend/tests/utils/stores/PlaylistViewStore.test.ts

@@ -0,0 +1,83 @@
+import { BrowserCache } from '../../../src/static/js/utils/classes/';
+import store from '../../../src/static/js/utils/stores/PlaylistViewStore';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    BrowserEvents: jest.fn().mockImplementation(() => ({
+        doc: jest.fn(),
+        win: jest.fn(),
+    })),
+    exportStore: jest.fn((store) => store),
+}));
+
+describe('utils/store', () => {
+    describe('PlaylistViewStore', () => {
+        const browserCacheInstance = (BrowserCache as jest.Mock).mock.results[0].value;
+        const browserCacheSetSpy = browserCacheInstance.set;
+
+        const handler = store.actions_handler.bind(store);
+
+        const onLoopRepeatUpdated = jest.fn();
+        const onShuffleUpdated = jest.fn();
+        const onSavedUpdated = jest.fn();
+
+        store.on('loop-repeat-updated', onLoopRepeatUpdated);
+        store.on('shuffle-updated', onShuffleUpdated);
+        store.on('saved-updated', onSavedUpdated);
+
+        test('Validate initial values', () => {
+            expect(store.get('INVALID_TYPE')).toBe(null);
+            expect(store.get('logged-in-user-playlist')).toBe(false);
+            expect(store.get('enabled-loop')).toBe(undefined);
+            expect(store.get('enabled-shuffle')).toBe(undefined);
+            expect(store.get('saved-playlist')).toBe(false);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            // @todo: Revisit the behavior of this action
+            test('Action type: "TOGGLE_LOOP"', () => {
+                handler({ type: 'TOGGLE_LOOP' });
+
+                expect(onLoopRepeatUpdated).toHaveBeenCalledTimes(1);
+                expect(onLoopRepeatUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('enabled-loop')).toBe(undefined);
+
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('loopPlaylist[null]', true);
+            });
+
+            // @todo: Revisit the behavior of this action
+            test('Action type: "TOGGLE_SHUFFLE"', () => {
+                handler({ type: 'TOGGLE_SHUFFLE' });
+
+                expect(onShuffleUpdated).toHaveBeenCalledTimes(1);
+                expect(onShuffleUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('enabled-shuffle')).toBe(undefined);
+
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('shufflePlaylist[null]', true);
+            });
+
+            test('Action type: "TOGGLE_SAVE"', () => {
+                const initialValue = store.get('saved-playlist');
+
+                handler({ type: 'TOGGLE_SAVE' });
+
+                expect(onSavedUpdated).toHaveBeenCalledTimes(1);
+                expect(onSavedUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('saved-playlist')).toBe(!initialValue);
+            });
+        });
+    });
+});

frontend/tests/utils/stores/ProfilePageStore.test.ts

@@ -0,0 +1,168 @@
+import { getRequest, deleteRequest, csrfToken } from '../../../src/static/js/utils/helpers';
+import store from '../../../src/static/js/utils/stores/ProfilePageStore';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => ({
+        ...jest.requireActual('../../tests-constants').sampleMediaCMSConfig,
+        api: { ...jest.requireActual('../../tests-constants').sampleMediaCMSConfig.api, users: '' },
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    getRequest: jest.fn(),
+    deleteRequest: jest.fn(),
+    csrfToken: jest.fn(),
+    exportStore: jest.fn((store) => store),
+}));
+
+describe('utils/store', () => {
+    const mockAuthorData = { username: 'testuser', name: 'Test User' };
+
+    beforeAll(() => {
+        (globalThis as any).window.MediaCMS = { profileId: mockAuthorData.username };
+    });
+
+    afterAll(() => {
+        delete (globalThis as any).window.MediaCMS;
+    });
+
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('ProfilePageStore', () => {
+        const handler = store.actions_handler.bind(store);
+
+        const onProfileDelete = jest.fn();
+        const onProfileDeleteFail = jest.fn();
+        const onLoadAuthorData = jest.fn();
+
+        beforeAll(() => {
+            store.on('profile_delete', onProfileDelete);
+            store.on('profile_delete_fail', onProfileDeleteFail);
+            store.on('load-author-data', onLoadAuthorData);
+        });
+
+        beforeEach(() => {
+            // Reset store state
+            store.authorData = null;
+            store.removingProfile = false;
+            store.authorQuery = undefined;
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            test('Action type: "REMOVE_PROFILE" - successful deletion', async () => {
+                // Set up author data
+                store.authorData = mockAuthorData;
+
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock delete request
+                (deleteRequest as jest.Mock).mockImplementation(
+                    (_url, _config, _sync, successCallback, _failCallback) => successCallback({ status: 204 })
+                );
+
+                handler({ type: 'REMOVE_PROFILE' });
+
+                // Verify deleteRequest was called with correct parameters
+                expect(deleteRequest).toHaveBeenCalledWith(
+                    '/testuser', // API URL constructed from config + username
+                    { headers: { 'X-CSRFToken': mockCSRFtoken } },
+                    false,
+                    store.removeProfileResponse,
+                    store.removeProfileFail
+                );
+
+                // Verify event was emitted
+                expect(onProfileDelete).toHaveBeenCalledWith(mockAuthorData.username);
+                expect(onProfileDelete).toHaveBeenCalledTimes(1);
+            });
+
+            test('Action type: "REMOVE_PROFILE" - deletion failure', async () => {
+                // Set up author data
+                store.authorData = mockAuthorData;
+
+                // Mock the CSRF token
+                const mockCSRFtoken = 'test-csrf-token';
+                (csrfToken as jest.Mock).mockReturnValue(mockCSRFtoken);
+
+                // Mock delete request
+                (deleteRequest as jest.Mock).mockImplementation(
+                    (_url, _config, _sync, _successCallback, failCallback) => failCallback.call(store)
+                );
+
+                handler({ type: 'REMOVE_PROFILE' });
+
+                // Wait for the setTimeout in removeProfileFail
+                await new Promise((resolve) => setTimeout(resolve, 150));
+
+                // Verify event was emitted
+                expect(onProfileDeleteFail).toHaveBeenCalledWith(mockAuthorData.username);
+                expect(onProfileDeleteFail).toHaveBeenCalledTimes(1);
+            });
+
+            test('Action type: "REMOVE_PROFILE" - prevents duplicate calls while removing', () => {
+                // Set up author data
+                store.authorData = mockAuthorData;
+
+                handler({ type: 'REMOVE_PROFILE' });
+                expect(deleteRequest).toHaveBeenCalledTimes(1);
+
+                store.removingProfile = true;
+                handler({ type: 'REMOVE_PROFILE' });
+                expect(deleteRequest).toHaveBeenCalledTimes(1);
+
+                store.removingProfile = false;
+                handler({ type: 'REMOVE_PROFILE' });
+                expect(deleteRequest).toHaveBeenCalledTimes(2);
+            });
+
+            test('Action type: "LOAD_AUTHOR_DATA"', async () => {
+                (getRequest as jest.Mock).mockImplementation((_url, _cache, successCallback, _failCallback) =>
+                    successCallback({ data: mockAuthorData })
+                );
+
+                handler({ type: 'LOAD_AUTHOR_DATA' });
+
+                // Verify getRequest was called with correct parameters
+                expect(getRequest).toHaveBeenCalledWith('/testuser', false, store.onDataLoad, store.onDataLoadFail);
+
+                // Verify event was emitted
+                expect(onLoadAuthorData).toHaveBeenCalledTimes(1);
+
+                // Verify author data was processed correctly
+                expect(store.get('author-data')).toStrictEqual(mockAuthorData);
+            });
+        });
+
+        describe('Getter methods', () => {
+            test('Validate initial values', () => {
+                expect(store.get('INVALID_TYPE')).toBe(undefined);
+                expect(store.get('author-data')).toBe(null);
+                expect(store.get('author-query')).toBe(null);
+            });
+
+            test('get("author-data") returns authorData', () => {
+                store.authorData = mockAuthorData;
+                expect(store.get('author-data')).toBe(mockAuthorData);
+            });
+
+            test('get("author-query") - without "aq" parameter in URL', () => {
+                window.history.pushState({}, '', '/path');
+                expect(store.get('author-query')).toBe(null);
+            });
+
+            test('get("author-query") - with "aq" parameter in URL', () => {
+                window.history.pushState({}, '', '/path?aq=AUTHOR_QUERY');
+                expect(store.get('author-query')).toBe('AUTHOR_QUERY');
+            });
+
+            test('get("author-query") - empty search string', () => {
+                window.history.pushState({}, '', '/path?aq');
+                expect(store.get('author-query')).toBe(null);
+            });
+        });
+    });
+});

frontend/tests/utils/stores/SearchFieldStore.test.ts

@@ -0,0 +1,64 @@
+const urlParams = { q: 'search_query', c: 'category_1', t: 'tag_1' };
+window.history.pushState({}, '', `/?q=${urlParams.q}&c=${urlParams.c}&t=${urlParams.t}`);
+
+import store from '../../../src/static/js/utils/stores/SearchFieldStore';
+import { getRequest } from '../../../src/static/js/utils/helpers';
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    exportStore: jest.fn((store) => store),
+    getRequest: jest.fn(),
+}));
+
+describe('utils/store', () => {
+    afterAll(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('SearchFieldStore', () => {
+        const handler = store.actions_handler.bind(store);
+
+        const onLoadPredictions = jest.fn();
+
+        store.on('load_predictions', onLoadPredictions);
+
+        test('Validate initial values based on URL params', async () => {
+            expect(store.get('INVALID_TYPE')).toBe(null);
+            expect(store.get('search-query')).toBe(urlParams.q);
+            expect(store.get('search-categories')).toBe(urlParams.c);
+            expect(store.get('search-tags')).toBe(urlParams.t);
+        });
+
+        test('Action type: "Action type: "TOGGLE_VIEWER_MODE"', async () => {
+            const predictionsQuery_1 = 'predictions_query_1';
+            const predictionsQuery_2 = 'predictions_query_2';
+
+            const response_1 = { data: [{ title: 'Prediction 1' }, { title: 'Prediction 2' }] };
+            const response_2 = { data: [{ title: 'Prediction 3' }, { title: 'Prediction 4' }] };
+
+            (getRequest as jest.Mock)
+                .mockImplementationOnce((_url, _cache, successCallback, _failCallback) => successCallback(response_1))
+                .mockImplementationOnce((_url, _cache, successCallback, _failCallback) => successCallback(response_2));
+
+            handler({ type: 'REQUEST_PREDICTIONS', query: predictionsQuery_1 });
+            handler({ type: 'REQUEST_PREDICTIONS', query: predictionsQuery_2 });
+
+            expect(onLoadPredictions).toHaveBeenCalledTimes(2);
+
+            expect(onLoadPredictions).toHaveBeenNthCalledWith(
+                1,
+                predictionsQuery_1,
+                response_1.data.map(({ title }) => title)
+            );
+
+            expect(onLoadPredictions).toHaveBeenNthCalledWith(
+                2,
+                predictionsQuery_2,
+                response_2.data.map(({ title }) => title)
+            );
+        });
+    });
+});

frontend/tests/utils/stores/VideoViewerStore.test.ts

@@ -0,0 +1,147 @@
+import { BrowserCache } from '../../../src/static/js/utils/classes/';
+import store from '../../../src/static/js/utils/stores/VideoViewerStore';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: (key: string) => {
+            let result: any = undefined;
+            switch (key) {
+                case 'player-volume':
+                    result = 0.6;
+                    break;
+                case 'player-sound-muted':
+                    result = false;
+                    break;
+                case 'in-theater-mode':
+                    result = true;
+                    break;
+                case 'video-quality':
+                    result = 720;
+                    break;
+                case 'video-playback-speed':
+                    result = 2;
+                    break;
+            }
+            return result;
+        },
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    BrowserEvents: jest.fn().mockImplementation(() => ({
+        doc: jest.fn(),
+        win: jest.fn(),
+    })),
+    exportStore: jest.fn((store) => store),
+}));
+
+describe('utils/store', () => {
+    describe('VideoViewerStore', () => {
+        const browserCacheInstance = (BrowserCache as jest.Mock).mock.results[0].value;
+        const browserCacheSetSpy = browserCacheInstance.set;
+
+        const handler = store.actions_handler.bind(store);
+
+        const onChangedViewerMode = jest.fn();
+        const onChangedPlayerVolume = jest.fn();
+        const onChangedPlayerSoundMuted = jest.fn();
+        const onChangedVideoQuality = jest.fn();
+        const onChangedVideoPlaybackSpeed = jest.fn();
+
+        store.on('changed_viewer_mode', onChangedViewerMode);
+        store.on('changed_player_volume', onChangedPlayerVolume);
+        store.on('changed_player_sound_muted', onChangedPlayerSoundMuted);
+        store.on('changed_video_quality', onChangedVideoQuality);
+        store.on('changed_video_playback_speed', onChangedVideoPlaybackSpeed);
+
+        test('Validate initial values', () => {
+            expect(store.get('player-volume')).toBe(0.6);
+            expect(store.get('player-sound-muted')).toBe(false);
+            expect(store.get('in-theater-mode')).toBe(true);
+            expect(store.get('video-data')).toBe(undefined); // @todo: Revisit this behavior
+            expect(store.get('video-quality')).toBe(720);
+            expect(store.get('video-playback-speed')).toBe(2);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            test('Action type: "TOGGLE_VIEWER_MODE"', () => {
+                const initialValue = store.get('in-theater-mode');
+
+                handler({ type: 'TOGGLE_VIEWER_MODE' });
+
+                expect(onChangedViewerMode).toHaveBeenCalledWith();
+                expect(onChangedViewerMode).toHaveBeenCalledTimes(1);
+
+                expect(store.get('in-theater-mode')).toBe(!initialValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('in-theater-mode', !initialValue);
+            });
+
+            test('Action type: "SET_VIEWER_MODE"', () => {
+                const initialValue = store.get('in-theater-mode');
+                const newValue = !initialValue;
+
+                handler({ type: 'SET_VIEWER_MODE', inTheaterMode: newValue });
+
+                expect(onChangedViewerMode).toHaveBeenCalledWith();
+                expect(onChangedViewerMode).toHaveBeenCalledTimes(2); // The first time called by 'TOGGLE_VIEWER_MODE' action.
+
+                expect(store.get('in-theater-mode')).toBe(newValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('in-theater-mode', newValue);
+            });
+
+            test('Action type: "SET_PLAYER_VOLUME"', () => {
+                const newValue = 0.3;
+
+                handler({ type: 'SET_PLAYER_VOLUME', playerVolume: newValue });
+
+                expect(onChangedPlayerVolume).toHaveBeenCalledWith();
+                expect(onChangedPlayerVolume).toHaveBeenCalledTimes(1);
+
+                expect(store.get('player-volume')).toBe(newValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('player-volume', newValue);
+            });
+
+            test('Action type: "SET_PLAYER_SOUND_MUTED"', () => {
+                const initialValue = store.get('player-sound-muted');
+                const newValue = !initialValue;
+
+                handler({ type: 'SET_PLAYER_SOUND_MUTED', playerSoundMuted: newValue });
+
+                expect(onChangedPlayerSoundMuted).toHaveBeenCalledWith();
+                expect(onChangedPlayerSoundMuted).toHaveBeenCalledTimes(1);
+
+                expect(store.get('player-sound-muted')).toBe(newValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('player-sound-muted', newValue);
+            });
+
+            test('Action type: "SET_VIDEO_QUALITY"', () => {
+                const newValue = 1080;
+
+                handler({ type: 'SET_VIDEO_QUALITY', quality: newValue });
+
+                expect(onChangedVideoQuality).toHaveBeenCalledWith();
+                expect(onChangedVideoQuality).toHaveBeenCalledTimes(1);
+
+                expect(store.get('video-quality')).toBe(newValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('video-quality', newValue);
+            });
+
+            test('Action type: "SET_VIDEO_PLAYBACK_SPEED"', () => {
+                const newValue = 1.5;
+
+                handler({ type: 'SET_VIDEO_PLAYBACK_SPEED', playbackSpeed: newValue });
+
+                expect(onChangedVideoPlaybackSpeed).toHaveBeenCalledWith();
+                expect(onChangedVideoPlaybackSpeed).toHaveBeenCalledTimes(1);
+
+                expect(store.get('video-playback-speed')).toBe(newValue);
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('video-playback-speed', newValue);
+            });
+        });
+    });
+});