sstent/silverbullet-icalendar
1
0
Fork 0
forked from GitHubMirrors/silverbullet-icalendar
Code Pull Requests Actions Packages Releases Activity

Bump version to 0.2.16 and add detailed offset logging

Browse Source
This commit is contained in:
sstent
2026-02-17 08:35:56 -08:00
parent 2ea763e145
commit d28c206862
1 changed files with 47 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
icalendar.ts
View File

@@ -1,10 +1,25 @@
import { clientStore, config, datastore, editor, index } from "@silverbulletmd/silverbullet/syscalls";
import { convertIcsCalendar, type IcsCalendar, type IcsEvent, type IcsDateObjects } from "ts-ics";
const VERSION = "0.2.14";
const VERSION = "0.2.15";
const CACHE_KEY = "icalendar:lastSync";
const DEFAULT_CACHE_DURATION_SECONDS = 21600; // 6 hours
// Mapping of common Windows/Outlook timezones to their standard offsets (in hours)
const TIMEZONE_OFFSETS: Record<string, number> = {
"GMT Standard Time": 0,
"W. Europe Standard Time": 1,
"Central Europe Standard Time": 1,
"Romance Standard Time": 1,
"Central European Standard Time": 1,
"Eastern Standard Time": -5,
"Central Standard Time": -6,
"Mountain Standard Time": -7,
"Pacific Standard Time": -8,
"UTC": 0,
"None": 0
};
console.log(`[iCalendar] Plug loading (Version ${VERSION})...`);
// ============================================================================
@@ -53,21 +68,42 @@ function toLocalISO(d: Date): string {
}
/**
* Simplified date processor that trusts the parsed Date object
* Robustly converts an ICS date object to a localized PST string
*/
function processIcsDate(obj: any, manualShift = 0): string {
if (!obj) return "";
// The 'date' property from ts-ics is already a native JS Date object
// which has been parsed with the correct TZID context if available.
const d = obj.date instanceof Date ? obj.date : (obj instanceof Date ? obj : null);
if (!d) return "";
// 1. Get the "Wall Time" (the hour shown in the organizer's calendar)
// ts-ics often puts this in obj.local.date but marks it with 'Z'
let wallTimeStr = (obj.local && typeof obj.local.date === "string")
? obj.local.date
: (typeof obj.date === "string" ? obj.date : "");
if (!wallTimeStr) return "";
// Apply ONLY the user requested shift
const shiftedDate = new Date(d.getTime() + (manualShift * 3600000));
// Remove any 'Z' to treat it as a raw floating time initially
wallTimeStr = wallTimeStr.replace("Z", "");
return toLocalISO(shiftedDate);
// Parse as UTC so we have a stable starting point
const baseDate = new Date(wallTimeStr + "Z");
// 2. Identify the Source Timezone
const tzName = obj.local?.timezone || obj.timezone || "UTC";
const sourceOffset = TIMEZONE_OFFSETS[tzName] ?? 0;
// 3. Calculate True UTC
// UTC = WallTime - SourceOffset
// Example: 16:00 WallTime in GMT+1 (+1) -> 15:00 UTC
const utcMillis = baseDate.getTime() - (sourceOffset * 3600000);
const envOffset = new Date().getTimezoneOffset();
console.log(`[iCalendar] Date Calc: Wall=${wallTimeStr}, TZ=${tzName}, SourceOffset=${sourceOffset}, EnvOffset=${envOffset}, UTC=${new Date(utcMillis).toISOString()}`);
// 4. Apply User's Manual Shift (if any)
const finalMillis = utcMillis + (manualShift * 3600000);
// 5. Localize to environment
return toLocalISO(new Date(finalMillis));
}
function isIcsDateObjects(obj: any): obj is IcsDateObjects {
@@ -196,4 +232,4 @@ export async function clearCache() {
export async function showVersion() {
await editor.flashNotification(`iCalendar Plug ${VERSION}`, "info");
}
}