109 lines
3.8 KiB
TypeScript
109 lines
3.8 KiB
TypeScript
import dayjs from 'dayjs';
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import isToday from 'dayjs/plugin/isToday';
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import isYesterday from 'dayjs/plugin/isYesterday';
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dayjs.extend(isToday);
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dayjs.extend(isYesterday);
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// Detect once at module load — the runtime locale doesn't change without a
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// page reload. AM/PM systems set `hour12: true`; 24-hour systems leave it
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// false/undefined. Older WebView builds may omit `hour12` entirely, so we
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// fall back to the modern `hourCycle` field (h11/h12 = 12-hour, h23/h24 =
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// 24-hour) before defaulting to 24-hour.
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const detectSystemHour24 = (): boolean => {
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try {
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const opts = new Intl.DateTimeFormat(undefined, { hour: 'numeric' }).resolvedOptions();
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if (opts.hour12 === true) return false;
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if (opts.hour12 === false) return true;
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const cycle = (opts as { hourCycle?: string }).hourCycle;
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if (cycle === 'h11' || cycle === 'h12') return false;
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if (cycle === 'h23' || cycle === 'h24') return true;
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return true;
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} catch {
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return true;
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}
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};
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export const SYSTEM_HOUR_24: boolean = detectSystemHour24();
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// 24-hour systems get the European day-month-year layout; 12-hour systems get
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// the American month-day-year layout.
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const SYSTEM_DAY_MON_YEAR_FORMAT = SYSTEM_HOUR_24 ? 'DD/MM/YYYY' : 'MM/DD/YYYY';
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export const today = (ts: number): boolean => dayjs(ts).isToday();
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export const yesterday = (ts: number): boolean => dayjs(ts).isYesterday();
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export const timeHour = (ts: number): string => dayjs(ts).format(SYSTEM_HOUR_24 ? 'HH' : 'hh');
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export const timeMinute = (ts: number): string => dayjs(ts).format('mm');
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export const timeAmPm = (ts: number): string => dayjs(ts).format('A');
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export const timeDay = (ts: number): string => dayjs(ts).format('D');
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export const timeMon = (ts: number): string => dayjs(ts).format('MMM');
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export const timeMonth = (ts: number): string => dayjs(ts).format('MMMM');
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export const timeYear = (ts: number): string => dayjs(ts).format('YYYY');
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export const timeHourMinute = (ts: number): string =>
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dayjs(ts).format(SYSTEM_HOUR_24 ? 'HH:mm' : 'hh:mm A');
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export const timeDayMonYear = (ts: number): string => dayjs(ts).format(SYSTEM_DAY_MON_YEAR_FORMAT);
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export const timeDayMonthYear = (ts: number): string => dayjs(ts).format('D MMMM YYYY');
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export const daysInMonth = (month: number, year: number): number =>
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dayjs(`${year}-${month}-1`).daysInMonth();
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export const dateFor = (year: number, month: number, day: number): number =>
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dayjs(`${year}-${month}-${day}`).valueOf();
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export const inSameDay = (ts1: number, ts2: number): boolean => {
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const dt1 = new Date(ts1);
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const dt2 = new Date(ts2);
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return (
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dt2.getFullYear() === dt1.getFullYear() &&
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dt2.getMonth() === dt1.getMonth() &&
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dt2.getDate() === dt1.getDate()
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);
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};
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export const minuteDifference = (ts1: number, ts2: number): number => {
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const dt1 = new Date(ts1);
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const dt2 = new Date(ts2);
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let diff = (dt2.getTime() - dt1.getTime()) / 1000;
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diff /= 60;
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return Math.abs(Math.round(diff));
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};
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export const hour24to12 = (hour24: number): number => {
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const h = hour24 % 12;
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if (h === 0) return 12;
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return h;
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};
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export const hour12to24 = (hour: number, pm: boolean): number => {
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if (hour === 12) {
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return pm ? 12 : 0;
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}
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return pm ? hour + 12 : hour;
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};
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export const secondsToMs = (seconds: number) => seconds * 1000;
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export const minutesToMs = (minutes: number) => minutes * secondsToMs(60);
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export const hoursToMs = (hour: number) => hour * minutesToMs(60);
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export const daysToMs = (days: number) => days * hoursToMs(24);
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export const getToday = () => {
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const nowTs = Date.now();
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const date = dayjs(nowTs);
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return dateFor(date.year(), date.month() + 1, date.date());
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};
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export const getYesterday = () => {
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const nowTs = Date.now() - daysToMs(1);
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const date = dayjs(nowTs);
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return dateFor(date.year(), date.month() + 1, date.date());
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};
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