feat: tweak calendar and clean it up

src/seqta/utils/googleCalendar/syncSettings.ts

@@ -0,0 +1,57 @@
+import {
+  GOOGLE_CALENDAR_SYNC_WEEKS_DEFAULT,
+  GOOGLE_CALENDAR_SYNC_WEEKS_MAX,
+  GOOGLE_CALENDAR_SYNC_WEEKS_MIN,
+} from "@/config/googleCalendar";
+import { readGoogleCalendarState, writeGoogleCalendarState } from "./storage";
+
+export const GOOGLE_CALENDAR_WEEKLY_ALARM = "bsplus_google_calendar_weekly";
+export const WEEKLY_SYNC_INTERVAL_MS = 7 * 24 * 60 * 60 * 1000;
+
+export function clampSyncWeeks(weeks: number): number {
+  if (!Number.isFinite(weeks)) return GOOGLE_CALENDAR_SYNC_WEEKS_DEFAULT;
+  return Math.min(
+    GOOGLE_CALENDAR_SYNC_WEEKS_MAX,
+    Math.max(GOOGLE_CALENDAR_SYNC_WEEKS_MIN, Math.round(weeks)),
+  );
+}
+
+export async function getSyncWeeksAhead(): Promise<number> {
+  const state = await readGoogleCalendarState();
+  return clampSyncWeeks(state.syncWeeksAhead ?? GOOGLE_CALENDAR_SYNC_WEEKS_DEFAULT);
+}
+
+export async function setSyncWeeksAhead(weeks: number): Promise<number> {
+  const syncWeeksAhead = clampSyncWeeks(weeks);
+  await writeGoogleCalendarState({ syncWeeksAhead });
+  return syncWeeksAhead;
+}
+
+export async function getAutoSyncWeekly(): Promise<boolean> {
+  const state = await readGoogleCalendarState();
+  return state.autoSyncWeekly !== false;
+}
+
+export async function setAutoSyncWeekly(enabled: boolean): Promise<void> {
+  await writeGoogleCalendarState({ autoSyncWeekly: enabled });
+}
+
+export async function shouldRunWeeklySync(): Promise<boolean> {
+  const state = await readGoogleCalendarState();
+  if (!state.refreshToken && !state.accessToken) return false;
+  if (state.autoSyncWeekly === false) return false;
+  if (state.pendingWeeklySync) return true;
+  const last = state.lastWeeklySyncAt ?? state.lastSyncAt ?? 0;
+  return Date.now() - last >= WEEKLY_SYNC_INTERVAL_MS;
+}
+
+export async function markWeeklySyncComplete(): Promise<void> {
+  await writeGoogleCalendarState({
+    lastWeeklySyncAt: Date.now(),
+    pendingWeeklySync: false,
+  });
+}
+
+export async function markWeeklySyncPending(): Promise<void> {
+  await writeGoogleCalendarState({ pendingWeeklySync: true });
+}