Day JS

dayjs.ts

// https://day.js.org/docs/en/display/format

import dayjs, {OpUnitType} from "dayjs";
import relativeTime from "dayjs/plugin/relativeTime";
import utc from "dayjs/plugin/utc";
import weekOfYear from "dayjs/plugin/weekOfYear";
dayjs.extend(utc);
dayjs.extend(weekOfYear);
dayjs.extend(relativeTime);

import {configs} from "../../configs";

type IDateType = dayjs.Dayjs | string | number | Date;

type IOptions = IDateType | {
    date?: IDateType,
    addWeeks?: number,
    addDays?: number,
    addHours?: number,
    addMinutes?: number,
    addSeconds?: number,
    startOf?: OpUnitType;
    endOf?: OpUnitType;
};

export function getDayJs(): dayjs.Dayjs {
    return  dayjs();
}

export function getLocalDate(options: IOptions = {}): Date {
    return getLocalDayJs(options).toDate();
}

export function getLocalTime(options: IOptions = {}): number {
    return getLocalDayJs(options).toDate().getTime();
}

export function getLocalDayJs(options: IOptions = {}): dayjs.Dayjs {
    if (options instanceof Date || typeof options === "string" || typeof options === "number" || dayjs.isDayjs(options)) {
        options = {date: options};
    }

    let dayJsOb =  dayjs(options.date).utcOffset(configs.utcOffset);

    if (options.addWeeks) {
        dayJsOb = dayJsOb.add(options.addWeeks, "week");
    }

    if (options.addDays) {
        dayJsOb = dayJsOb.add(options.addDays, "day");
    }

    if (options.addHours) {
        dayJsOb = dayJsOb.add(options.addHours, "hour");
    }

    if (options.addMinutes) {
        dayJsOb = dayJsOb.add(options.addMinutes, "minute");
    }

    if (options.addSeconds) {
        dayJsOb = dayJsOb.add(options.addSeconds, "second");
    }

    if (options.startOf) {
        dayJsOb = dayJsOb.startOf(options.startOf);
    }

    if (options.endOf) {
        dayJsOb = dayJsOb.endOf(options.endOf);
    }

    return dayJsOb;
}

export function formatLocal(template: string, options: IOptions = {}) {
    return getLocalDayJs(options).format(template);
}

export function formatLocalDate(options: IOptions = {}) {
    return getLocalDayJs(options).format("YYYY-MM-DD");
}

export function formatLocalDateTime(options: IOptions = {}) {
    return getLocalDayJs(options).format("YYYY-MM-DD HH:mm");
}

export function formatLocalMonthWeek(options: IOptions) {
    const dayJsObj = getLocalDayJs(options);
    const date1 = dayJsObj.week();
    const date2 = dayJsObj.clone().startOf("month").week();

    let week = date1 - date2 + 1;
    if (week <= 0) {
        week = 1;
    }

    const month = dayJsObj.format("YYYY MMM");
    return `${month} (W${week})`;
}