RocketChat/Rocket.Chat

export enum TIMEUNIT {
    days = 'days',
    hours = 'hours',
    minutes = 'minutes',
}

export const isValidTimespan = (timespan: number): boolean => {
    if (Number.isNaN(timespan)) {
        return false;
    }

    if (!Number.isFinite(timespan)) {
        return false;
    }

    if (timespan < 0) {
        return false;
    }

    return true;
};

export const timeUnitToMs = (unit: TIMEUNIT, timespan: number) => {
    if (!isValidTimespan(timespan)) {
        throw new Error(`timeUnitToMs - invalid timespan:${timespan}`);
    }

    switch (unit) {
        case TIMEUNIT.days:
            return timespan * 24 * 60 * 60 * 1000;

        case TIMEUNIT.hours:
            return timespan * 60 * 60 * 1000;

        case TIMEUNIT.minutes:
            return timespan * 60 * 1000;

        default:
            throw new Error('timeUnitToMs - invalid time unit');
    }
};

export const msToTimeUnit = (unit: TIMEUNIT, timespan: number) => {
    if (!isValidTimespan(timespan)) {
        throw new Error(`msToTimeUnit - invalid timespan:${timespan}`);
    }

    switch (unit) {
        case TIMEUNIT.days:
            return timespan / 24 / 60 / 60 / 1000;
        case TIMEUNIT.hours:
            return timespan / 60 / 60 / 1000;
        case TIMEUNIT.minutes:
            return timespan / 60 / 1000;
        default:
            throw new Error('msToTimeUnit - invalid time unit');
    }
};