cal.pub0.org/apps/web/lib/parseDate.ts

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import type { I18n } from "next-i18next";
import { RRule } from "rrule";
import type { Dayjs } from "@calcom/dayjs";
import dayjs from "@calcom/dayjs";
import { detectBrowserTimeFormat, TimeFormat } from "@calcom/lib/timeFormat";
import type { RecurringEvent } from "@calcom/types/Calendar";
import { parseZone } from "./parseZone";
const processDate = (date: string | null | Dayjs, i18n: I18n, withDefaultTimeFormat: boolean) => {
const parsedZone = parseZone(date);
if (!parsedZone?.isValid()) return "Invalid date";
const formattedTime = parsedZone?.format(
withDefaultTimeFormat ? TimeFormat.TWELVE_HOUR : detectBrowserTimeFormat
);
return formattedTime + ", " + dayjs(date).toDate().toLocaleString(i18n.language, { dateStyle: "full" });
};
export const parseDate = (date: string | null | Dayjs, i18n: I18n, withDefaultTimeFormat: boolean) => {
if (!date) return ["No date"];
return processDate(date, i18n, withDefaultTimeFormat);
};
export const parseRecurringDates = (
{
startDate,
timeZone,
recurringEvent,
recurringCount,
withDefaultTimeFormat,
}: {
startDate: string | null | Dayjs;
timeZone?: string;
recurringEvent: RecurringEvent | null;
recurringCount: number;
withDefaultTimeFormat: boolean;
},
i18n: I18n
): [string[], Date[]] => {
2022-05-17 20:43:27 +00:00
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const { count, ...restRecurringEvent } = recurringEvent || {};
const rule = new RRule({
...restRecurringEvent,
count: recurringCount,
dtstart: new Date(dayjs(startDate).valueOf()),
});
const startUtcOffset = dayjs(startDate).utcOffset();
// UTC still need to have DST applied, rrule does not do this.
const times = rule.all().map((t) => {
// applying the DST offset.
return dayjs.utc(t).add(startUtcOffset - dayjs(t).utcOffset(), "minute");
});
const dateStrings = times.map((t) => {
// finally; show in local timeZone again
return processDate(t.tz(timeZone), i18n, withDefaultTimeFormat);
});
return [dateStrings, times.map((t) => t.toDate())];
};