Method computeDueFromICSEnd

src/services/ICSNoteService.ts:323–355

* Convert ICSEvent.end to a safe due date string * - All-day events: Use the start date (ICS all-day events have DTEND as the next day per spec) * - Timed events: Use the actual end time * - No end time: Return undefined

(icsEvent: ICSEvent)

	 * - No end time: Return undefined
	 */
	private computeDueFromICSEnd(icsEvent: ICSEvent): string | undefined {
		try {
			// No end time means no due date
			if (!icsEvent.end) return undefined;

			// For all-day events, the ICS spec uses DTEND as the day AFTER the event
			// e.g., an all-day event on Feb 12 has DTSTART=20250212 and DTEND=20250213
			// So we use the start date as the due date for all-day events
			if (icsEvent.allDay) {
				if (!icsEvent.start) return undefined;
				const startDateStr = /^\d{4}-\d{2}-\d{2}$/.test(icsEvent.start)
					? icsEvent.start + "T00:00:00"
					: icsEvent.start;
				const startDate = new Date(startDateStr);
				return formatDateForStorage(startDate);
			}

			// Timed event: use the actual end time
			const endDateStr = /^\d{4}-\d{2}-\d{2}$/.test(icsEvent.end)
				? icsEvent.end + "T00:00:00"
				: icsEvent.end;
			const endDate = new Date(endDateStr);
			return format(endDate, "yyyy-MM-dd'T'HH:mm");
		} catch (error) {
			tasknotesLogger.warn("Failed to compute due from ICS event end:", {
				category: "provider",
				operation: "compute-due-ics-event-end",
				details: { end: icsEvent.end },
				error: error,
			});
			return undefined;
		}
	}

	/**
	 * Create a new note from an ICS event