upstream-rocketchat/apps/meteor/client/views/root/hooks/loggedIn/useNotificationUserCalendar.ts

import type { ICalendarNotification, IUser } from '@rocket.chat/core-typings';
import { useStableCallback } from '@rocket.chat/fuselage-hooks';
import { imperativeModal } from '@rocket.chat/ui-client';
import { useStream, useUserPreference } from '@rocket.chat/ui-contexts';
import { useEffect } from 'react';

import OutlookCalendarEventModal from '../../../outlookCalendar/OutlookCalendarEventModal';

export const useNotificationUserCalendar = (user: IUser) => {
	const requireInteraction = useUserPreference('desktopNotificationRequireInteraction');
	const notifyUserStream = useStream('notify-user');

	const notifyUserCalendar = useStableCallback(async (notification: ICalendarNotification) => {
		if (user.status === 'busy') {
			return;
		}

		let body = notification.text;
		if (notification.payload?.startTimeUtc) {
			try {
				const time = new Date(notification.payload.startTimeUtc);
				const formattedTime = time.toLocaleTimeString(undefined, {
					hour: 'numeric',
					minute: 'numeric',
					dayPeriod: 'narrow',
				});
				body = formattedTime;
			} catch (error) {
				console.error('Failed to format calendar notification time:', error);
				body = notification.text;
			}
		}

		const n = new Notification(notification.title, {
			body,
			tag: notification.payload._id,
			silent: true,
			requireInteraction,
		} as NotificationOptions);

		n.onclick = function () {
			this.close();
			window.focus();
			imperativeModal.open({
				component: OutlookCalendarEventModal,
				props: { id: notification.payload._id, onClose: imperativeModal.close, onCancel: imperativeModal.close },
			});
		};
	});

	useEffect(() => {
		if (!user?._id || !user.settings?.calendar?.outlook?.Enabled) {
			return;
		}

		return notifyUserStream(`${user._id}/calendar`, notifyUserCalendar);
	}, [notifyUserCalendar, notifyUserStream, user.settings?.calendar?.outlook?.Enabled, user?._id]);
};