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84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
import dayjs from 'dayjs';
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import customParseFormat from 'dayjs/plugin/customParseFormat';
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import utc from 'dayjs/plugin/utc';
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import timezonePlugin from 'dayjs/plugin/timezone';
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import advancedFormat from 'dayjs/plugin/advancedFormat';
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import {
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MS_DATE_STRING,
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SEC_DATE_STRING,
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CLEAN_DATE_STRING_RE,
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SPLIT_DATE_STRING,
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TIME_AGO_STRING,
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TIME_NOW_STRING,
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TIME_MERIDIAN_SPACE_RE,
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TIME_MERIDIAN_DOTS_RE,
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TIME_WITH_OFFSET_RE,
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} from './constants';
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dayjs.extend(customParseFormat);
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dayjs.extend(utc);
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dayjs.extend(timezonePlugin);
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dayjs.extend(advancedFormat);
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export function cleanDateString(dateString) {
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return (dateString.match(SPLIT_DATE_STRING) || [])
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.join(' ')
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.replace(TIME_MERIDIAN_DOTS_RE, 'm')
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.replace(TIME_MERIDIAN_SPACE_RE, '$1 $2 $3')
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.replace(CLEAN_DATE_STRING_RE, '$1')
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.trim();
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}
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export function createDate(dateString, timezone, format) {
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if (TIME_WITH_OFFSET_RE.test(dateString)) {
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return dayjs(new Date(dateString));
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}
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if (TIME_AGO_STRING.test(dateString)) {
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const fragments = TIME_AGO_STRING.exec(dateString);
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return dayjs().subtract(fragments[1], fragments[2]);
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}
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if (TIME_NOW_STRING.test(dateString)) {
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return dayjs();
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}
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if (timezone) {
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try {
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return format
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? dayjs.tz(dateString, format, timezone)
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: dayjs.tz(dayjs(dateString).format('YYYY-MM-DD HH:mm:ss'), timezone);
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} catch (error) {
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// return an intentionally invalid dayjs object,
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// in case the input needs to be cleaned first
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return dayjs('');
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}
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}
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return format ? dayjs(dateString, format) : dayjs(dateString);
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}
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// Take a date published string, and hopefully return a date out of
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// it. Return none if we fail.
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export default function cleanDatePublished(
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dateString,
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{ timezone, format } = {}
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) {
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// If string is in milliseconds or seconds, convert to int and return
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if (MS_DATE_STRING.test(dateString)) {
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return new Date(parseInt(dateString, 10)).toISOString();
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}
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if (SEC_DATE_STRING.test(dateString)) {
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return new Date(parseInt(dateString, 10) * 1000).toISOString();
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}
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let date = createDate(dateString, timezone, format);
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if (!date.isValid()) {
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dateString = cleanDateString(dateString);
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date = createDate(dateString, timezone);
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}
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return date.isValid() ? date.toISOString() : null;
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}
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