loads of polish and bug fixes

lib/sessionLifecycle.ts

@@ -0,0 +1,37 @@
+import {
+  GetActiveSession,
+  RemoveActiveSession,
+  RemoveStudyCycle,
+  type ActiveSession,
+} from '@/lib/asyncStorage';
+import { supabase } from '@/lib/supabase';
+
+export type FinalSessionStatus = 'completed' | 'cancelled' | 'expired';
+
+export async function finalizeStoredSession(
+  finalStatus: FinalSessionStatus,
+  activeSessionOverride?: ActiveSession | null
+) {
+  const activeSession = activeSessionOverride ?? await GetActiveSession();
+
+  if (!activeSession) {
+    return null;
+  }
+
+  await RemoveActiveSession();
+
+  if (finalStatus !== 'completed') {
+    await RemoveStudyCycle();
+  }
+
+  const { error } = await supabase.rpc('finalize_sprint_session', {
+    p_session_id: activeSession.sessionId,
+    p_final_status: finalStatus,
+    p_ended_at: new Date().toISOString(),
+  });
+
+  return {
+    activeSession,
+    error,
+  };
+}