122 lines
2.9 KiB
TypeScript
122 lines
2.9 KiB
TypeScript
// getMonth() method ranges from 0-11 so no reason to account for it
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const months = [
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'January',
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'February',
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'March',
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'April',
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'May',
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'June',
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'July',
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'August',
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'September',
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'October',
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'November',
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'December'
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];
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function get12HourTime(pdate: Date | string): string {
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const date = (typeof pdate === 'string') ? new Date(pdate) : pdate;
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if (date.getHours() > 12)
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return `${date.getHours() - 12}:${date.getMinutes()} PM`;
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else if (date.getHours() === 0)
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return `12:${date.getMinutes()} AM`;
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return `${date.getHours()}:${date.getMinutes()} AM`;
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}
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function toHumanReadableDate(date: Date | string, disable?: { year?: boolean, month?: boolean, day?: boolean }) {
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const oDate = (typeof date === 'string') ? new Date(date) : date;
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const year = oDate.getFullYear();
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const month = months[oDate.getMonth()];
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const day = oDate.getDate();
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let out = !disable?.day ? `${day}${getOrdinalDaySuffix(day)}` : '';
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out = !disable?.month ? `${out} ${month}` : out;
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out = !disable?.year ? `${out} ${year}` : out;
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return out;
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}
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export function getOrdinalDaySuffix(day: number): string {
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switch (day) {
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case 1:
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case 21:
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case 31:
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return 'st';
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case 2:
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case 22:
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return 'nd';
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case 3:
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case 23:
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return 'rd';
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default:
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return 'th';
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}
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}
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export function toLocaleString(pdate: Date | string): string {
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const date = (typeof pDate === 'string') ? new Date(pdate) : pdate;
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return `${toHumanReadableDate(date)}, ${get12HourTime(date)}`;
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}
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export function toRelativeDate(date: Date | string): string {
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const oDate = (typeof date === 'string') ? new Date(date) : date;
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if (!isValid(oDate)) {
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return 'Invalid Date';
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}
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const now = new Date();
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const diff = now.getTime() - oDate.getTime();
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let tdiff = Math.floor(diff / 1000);
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if (tdiff < 0) {
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return toHumanReadableDate(oDate);
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}
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if (tdiff < 60) {
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return `${tdiff} seconds ago`;
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}
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tdiff = Math.floor(tdiff / 60);
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if (tdiff < 60) {
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return `${tdiff} minute${tdiff === 1 ? '' : 's'} ago`;
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}
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tdiff = Math.floor(tdiff / 60);
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if (tdiff < 24) {
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return `${tdiff} hour${tdiff === 1 ? '' : 's'} ago`;
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}
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if (tdiff < 48) {
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return `Yesterday`;
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}
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if (oDate.getFullYear() != now.getFullYear())
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return toHumanReadableDate(oDate);
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return toHumanReadableDate(oDate, { year: true });
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}
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export function getFullMonth(month: number) {
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if (month >= 1 && month <= 12)
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return months[month];
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return 'Invalid Month';
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}
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export function isValid(date: any) {
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return (new Date(date)).toString() !== 'Invalid Date';
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}
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const DateTool = {
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toRelativeDate,
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getFullMonth,
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isValid,
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getOrdinalDaySuffix,
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toLocaleString,
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};
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export default DateTool;
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