switch to ical.js and cleanup obsolete files - v0.4.6 [skip-ci]

icalendar.ts

@@ -1,9 +1,9 @@
 import { clientStore, config, datastore, editor, index } from "@silverbulletmd/silverbullet/syscalls";
-import { convertIcsCalendar } from "https://esm.sh/ts-ics@2.4.0";
+import ICAL from "ical.js";
 import { RRule, RRuleSet } from "rrule";
 import { getUtcOffsetMs, resolveIanaName } from "./timezones.ts";
 
-const VERSION = "0.4.4";
+const VERSION = "0.4.6";
 const CACHE_KEY = "icalendar:lastSync";
 
 console.log(`[iCalendar] Plug script executing at top level (Version ${VERSION})`);
@@ -321,27 +321,37 @@ async function fetchAndParseCalendar(source: any, windowDays = 365, displayTimez
       return [];
     }
     const text = await response.text();
-    const calendar = convertIcsCalendar(undefined, text);
-    if (!calendar || !calendar.events) {
-      return [];
-    }
-    
-    const events: any[] = [];
-    for (const icsEvent of calendar.events) {
-      if (icsEvent.status?.toUpperCase() === "CANCELLED") continue;
+    const jcalData = ICAL.parse(text);
+    const vcalendar = new ICAL.Component(jcalData);
+    const vevents = vcalendar.getAllSubcomponents("vevent");
 
-      // Resolve start time (returns UTC Date)
-      const startDateUTC = await resolveEventStart(icsEvent);
-      if (!startDateUTC) continue;
+    const events: any[] = [];
+    for (const vevent of vevents) {
+      const icsEvent = new ICAL.Event(vevent);
+      const status = vevent.getFirstPropertyValue("status") as string | null;
       
-      // Resolve end time (returns UTC Date)
-      const endDateUTC = await resolveEventEnd(icsEvent);
+      if (status?.toUpperCase() === "CANCELLED") continue;
+
+      // Extract raw properties for recurrence expansion
+      const summary = icsEvent.summary;
+      const uid = icsEvent.uid;
+      const description = icsEvent.description;
+      const location = icsEvent.location;
+      const rrule = vevent.getFirstPropertyValue("rrule");
+      const exdates = vevent.getAllProperties("exdate").map((p: any) => p.getFirstValue().toJSDate().toISOString());
+
+      // Resolve start/end times
+      const startDateUTC = icsEvent.startDate.toJSDate();
+      const endDateUTC = icsEvent.endDate ? icsEvent.endDate.toJSDate() : null;
       
-      const rawTz = icsEvent.start?.local?.timezone || (icsEvent.start as any)?.timezone || "UTC";
+      const rawTz = icsEvent.startDate.timezone || "UTC";
       
       const baseEvent = {
-        ...icsEvent,
-        name: icsEvent.summary || "Untitled Event",
+        uid,
+        summary,
+        name: summary || "Untitled Event",
+        description,
+        location,
         // Store both UTC (for sorting/comparison) and local (for display)
         start: startDateUTC.toISOString(),
         startLocal: dateToTimezoneString(startDateUTC, displayTimezone),
@@ -349,7 +359,9 @@ async function fetchAndParseCalendar(source: any, windowDays = 365, displayTimez
         endLocal: endDateUTC ? dateToTimezoneString(endDateUTC, displayTimezone) : undefined,
         tag: "ical-event",
         sourceName: source.name,
-        timezone: rawTz
+        timezone: rawTz,
+        rrule: rrule ? rrule.toString() : undefined,
+        exdate: exdates.length > 0 ? exdates : undefined
       };
 
       if (rawTz !== "UTC" && rawTz !== "None" && !resolveIanaName(rawTz)) {