Add enhanced search/filtering and push notifications for prayer reminders

src/lib/firebase.ts

@@ -4,6 +4,7 @@ import { getAuth } from 'firebase/auth';
 import { getFirestore } from 'firebase/firestore';
 import { getStorage } from 'firebase/storage';
 import { getAnalytics } from 'firebase/analytics';
+import { getMessaging, onMessage, getToken } from 'firebase/messaging';
 
 // TODO: Add SDKs for Firebase products that you want to use
 // https://firebase.google.com/docs/web/setup#available-libraries
@@ -30,6 +31,16 @@ export const db = getFirestore(app);
 // Initialize Firebase Storage and get a reference to the service
 export const storage = getStorage(app);
 
+// Initialize Firebase Cloud Messaging
+export let messaging: any = null;
+if (typeof window !== 'undefined') {
+  try {
+    messaging = getMessaging(app);
+  } catch (error) {
+    console.warn('FCM not supported in this environment:', error);
+  }
+}
+
 // Initialize Firebase Analytics and get a reference to the service
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 let analytics: any = null;
@@ -45,4 +56,31 @@ if (typeof window !== 'undefined') {
 
 export { analytics };
 
+// FCM utility functions
+export const requestNotificationPermission = async () => {
+  if (!messaging) return null;
+  
+  try {
+    const permission = await Notification.requestPermission();
+    if (permission === 'granted') {
+      const token = await getToken(messaging, {
+        vapidKey: process.env.NEXT_PUBLIC_FCM_VAPID_KEY || 'your-vapid-key-here'
+      });
+      return token;
+    }
+  } catch (error) {
+    console.error('Error requesting notification permission:', error);
+  }
+  return null;
+};
+
+export const onMessageListener = () =>
+  new Promise((resolve) => {
+    if (messaging) {
+      onMessage(messaging, (payload) => {
+        resolve(payload);
+      });
+    }
+  });
+
 export { app };