import {DAY_IN_SECONDS, HOUR_IN_SECONDS} from '../constants';
import {formatNumber} from '../dataFormatters/dataFormatters';

import i18n from './i18n';

/**
 * Process time difference in ms and returns formated time.
 * By default only two major values are returned (days & hours, hours & minutes, minutes & seconds, etc.).
 * It can be altered with valuesCount arg
 * Compact format omits milliseconds and spaces between numbers and unit labels.
 *
 * value - duration in ms
 */
export const formatDurationToShortTimeFormat = (
    value: number,
    valuesCount: 1 | 2 = 2,
    {compact = false}: {compact?: boolean} = {},
) => {
    const ms = value % 1000;
    let remain = Math.floor(value / 1000);

    const days = Math.floor(remain / DAY_IN_SECONDS);
    remain = remain % DAY_IN_SECONDS;

    const hours = Math.floor(remain / HOUR_IN_SECONDS);
    remain = remain % HOUR_IN_SECONDS;

    const minutes = Math.floor(remain / 60);
    remain = remain % 60;

    const seconds = remain;

    const duration = {
        days,
        hours,
        minutes,
        seconds,
        ms,
    };

    if (compact) {
        const units = [
            {value: days, key: 'value_compact-days'},
            {value: hours, key: 'value_compact-hours'},
            {value: minutes, key: 'value_compact-minutes'},
            {value: seconds, key: 'value_compact-seconds'},
        ] as const;
        const firstNonZeroUnit = units.findIndex((unit) => unit.value > 0);

        return units
            .slice(firstNonZeroUnit < 0 ? -1 : firstNonZeroUnit)
            .slice(0, valuesCount)
            .map(({key}) => i18n(key, duration))
            .join(' ');
    }

    if (valuesCount === 2) {
        if (days > 0) {
            return i18n('daysHours', duration);
        }
        if (hours > 0) {
            return i18n('hoursMin', duration);
        }
        if (minutes > 0) {
            return i18n('minSec', duration);
        }
        if (seconds > 0) {
            return i18n('secMs', duration);
        }
    }

    if (valuesCount === 1) {
        if (days > 0) {
            return i18n('days', duration);
        }
        if (hours > 0) {
            return i18n('hours', duration);
        }
        if (minutes > 0) {
            return i18n('min', duration);
        }
        if (seconds > 0) {
            return i18n('sec', duration);
        }
    }

    return i18n('ms', duration);
};

/**
 * Parse ms duration to string
 */
export const formatToMs = (value: number) => {
    return i18n('ms', {ms: formatNumber(value)});
};