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

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// handles logic related to user clock display using 24h display / timeZone options.
import dayjs from "dayjs";
import timezone from "dayjs/plugin/timezone";
import utc from "dayjs/plugin/utc";
import { localStorage } from "@calcom/lib/webstorage";
import { isBrowserLocale24h } from "./timeFormat";
dayjs.extend(utc);
dayjs.extend(timezone);
interface TimeOptions {
is24hClock: boolean;
inviteeTimeZone: string;
}
const timeOptions: TimeOptions = {
is24hClock: false,
inviteeTimeZone: "",
};
const isInitialized = false;
const initClock = () => {
if (isInitialized) {
return;
}
// This only sets browser locale if there's no preference on localStorage.
if (!localStorage.getItem("timeOption.is24hClock")) set24hClock(isBrowserLocale24h());
timeOptions.is24hClock = localStorage.getItem("timeOption.is24hClock") === "true";
timeOptions.inviteeTimeZone = localStorage.getItem("timeOption.preferredTimeZone") || dayjs.tz.guess();
};
const is24h = (is24hClock?: boolean) => {
initClock();
if (typeof is24hClock !== "undefined") set24hClock(is24hClock);
return timeOptions.is24hClock;
};
const set24hClock = (is24hClock: boolean) => {
localStorage.setItem("timeOption.is24hClock", is24hClock.toString());
timeOptions.is24hClock = is24hClock;
};
function setTimeZone(selectedTimeZone: string) {
localStorage.setItem("timeOption.preferredTimeZone", selectedTimeZone);
timeOptions.inviteeTimeZone = selectedTimeZone;
}
const timeZone = (selectedTimeZone?: string) => {
initClock();
if (selectedTimeZone) setTimeZone(selectedTimeZone);
return timeOptions.inviteeTimeZone;
};
export { is24h, timeZone };