Background notifikasi berhasil dibuat

Add:
-components/Notification/BackgroundNotificationHandler.tsx

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components/Notification/BackgroundNotificationHandler.tsx

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+// src/components/BackgroundNotificationHandler.tsx
+import { useNotificationStore } from "@/hooks/use-notification-store";
+import AsyncStorage from "@react-native-async-storage/async-storage";
+import {
+  FirebaseMessagingTypes,
+  getInitialNotification,
+  getMessaging,
+  onNotificationOpenedApp,
+} from "@react-native-firebase/messaging";
+import { router } from "expo-router";
+import { useEffect, useRef } from "react";
+
+const HANDLED_NOTIFICATIONS_KEY = "handled_notifications";
+
+export default function BackgroundNotificationHandler() {
+  const { addNotification, markAsRead } = useNotificationStore();
+  const messaging = getMessaging();
+  const unsubscribeRef = useRef<(() => void) | null>(null); // 🔑 cegah duplikasi
+
+  useEffect(() => {
+    const init = async () => {
+      // 1. Handle (cold start)
+      const initialNotification = await getInitialNotification(messaging);
+      if (initialNotification) {
+        handleNotification(initialNotification);
+        return;
+      }
+
+      // 2. Handle background
+      if (unsubscribeRef.current) {
+        unsubscribeRef.current();
+      }
+
+      const unsubscribe = onNotificationOpenedApp(
+        messaging,
+        (remoteMessage) => {
+          handleNotification(remoteMessage);
+        }
+      );
+
+      unsubscribeRef.current = unsubscribe;
+    };
+
+    init();
+
+    // Cleanup saat komponen unmount
+    return () => {
+      if (unsubscribeRef.current) {
+        unsubscribeRef.current();
+        unsubscribeRef.current = null;
+      }
+    };
+  }, [addNotification, messaging]);
+
+  const isNotificationHandled = async (
+    notificationId: string
+  ): Promise<boolean> => {
+    const handled = await AsyncStorage.getItem(HANDLED_NOTIFICATIONS_KEY);
+    const ids = handled ? JSON.parse(handled) : [];
+    return ids.includes(notificationId);
+  };
+
+  const markNotificationAsHandled = async (notificationId: string) => {
+    const handled = await AsyncStorage.getItem(HANDLED_NOTIFICATIONS_KEY);
+    const ids = handled ? JSON.parse(handled) : [];
+    if (!ids.includes(notificationId)) {
+      ids.push(notificationId);
+      // Simpan maksimal 50 ID terakhir untuk hindari memori bocor
+      await AsyncStorage.setItem(
+        HANDLED_NOTIFICATIONS_KEY,
+        JSON.stringify(ids.slice(-50))
+      );
+    }
+  };
+
+  const handleNotification = async (
+    remoteMessage: FirebaseMessagingTypes.RemoteMessage
+  ) => {
+    const { notification, data } = remoteMessage;
+    if (!notification?.title) return;
+
+    console.log(
+      "🚀 Notification received:",
+      JSON.stringify(remoteMessage, null, 2)
+    );
+
+    const notificationId = data?.id;
+    if (!notificationId || typeof notificationId !== "string") {
+      console.warn("Notification missing notificationId, skipping navigation");
+      return;
+    }
+
+    // ✅ Cek apakah sudah pernah ditangani
+    if (await isNotificationHandled(notificationId)) {
+      console.log("Notification already handled, skipping:", notificationId);
+      return;
+    }
+
+    // ✅ Tandai sebagai ditangani
+    await markNotificationAsHandled(notificationId);
+
+    // ✅ Normalisasi deepLink: pastikan string
+    let deepLink: string | undefined;
+    if (data?.deepLink) {
+      if (typeof data.deepLink === "string") {
+        deepLink = data.deepLink;
+      } else {
+        // Jika object (jarang), coba string-kan
+        deepLink = JSON.stringify(data.deepLink);
+      }
+    }
+
+    // Tambahkan ke UI state (agar muncul di daftar notifikasi & badge)
+    addNotification({
+      title: notification.title,
+      body: notification.body || "",
+      type: "announcement",
+      data: data as Record<string, string>, // aman karena di-normalisasi di useNotificationStore
+    });
+
+    markAsRead(data?.id as any);
+
+    // Navigasi
+    if (
+      data?.deepLink &&
+      typeof data.deepLink === "string" &&
+      data.deepLink.startsWith("/")
+    ) {
+      setTimeout(() => {
+        try {
+          router.push(data.deepLink as any);
+        } catch (error) {
+          console.warn("Navigation failed:", error);
+        }
+      }, 100);
+    }
+  };
+
+  return null;
+}