const formattedValue = (val: number, lim: number, unit: string) =>
    Number((val / lim).toFixed(val < 10 * lim ? 1 : 0)) + unit;

function format(cntr: number, views: number, mult: number, compare: number, limit: number, units: string[]) {
    let i = cntr;
    while (views >= compare) {
        limit *= mult;
        compare *= mult;
        i += 1;
    }
    return i < units.length
        ? formattedValue(views, limit, units[i])
        : formattedValue(views * (mult * (i - (units.length - 1))), limit, units[units.length - 1]);
}

export const formatViewsNumber = (views_number: number, fullNumber?: boolean) =>
    fullNumber ? views_number.toLocaleString() : format(0, views_number, 1000, 1000, 1, ['', 'K', 'M', 'B', 'T']);