mobile-darmasaba/lib/useNotification.ts

import firebase  from '@react-native-firebase/app';
import messaging from '@react-native-firebase/messaging';
import { useEffect } from 'react';
import { PermissionsAndroid } from 'react-native';

// Your Firebase project configuration
const RNfirebaseConfig = {
   apiKey: "AIzaSyB2hbsW91J3oRQx4_jgrCCNY0tNt5-21e8",
   authDomain: "googleapis.com",
   projectId: "mobile-darmasaba",
   storageBucket: "mobile-darmasaba.appspot.com",
   messagingSenderId: "867439221179",
   appId: "1:867439221179:android:4509f77478c8dce99b0c9e",
   databaseURL: "https://mobile-darmasaba-default-rtdb.asia-southeast1.firebasedatabase.app/"
};

let initialized = false;

const initializeFirebase = async () => {
   if (initialized) return;

   try {
      if(!firebase.apps.length){
         firebase.initializeApp(RNfirebaseConfig)
      }

      // Set auto initialization and background message handler
      messaging().setAutoInitEnabled(true);
      messaging().setBackgroundMessageHandler(async remoteMessage => {
         console.log('Message handled in the background!', remoteMessage);
      });
   } catch (error) {
      console.error('Failed to initialize Firebase:', error);
      throw error;
   }
};

const requestPermission = async () => {
   try {
      const granted = await PermissionsAndroid.request(
         PermissionsAndroid.PERMISSIONS.POST_NOTIFICATIONS
      );
      if (granted === PermissionsAndroid.RESULTS.GRANTED) {
         console.log('Notification permission granted');
      } else {
         console.log('Notification permission denied');
      }
   } catch (err) {
      console.warn('Error requesting notification permissions:', err);
   }
};

const getToken = async () => {
   try {
      const token = await messaging().getToken();
      console.log('Token:', token);
      return token;
   } catch (error) {
      console.error("Error getting token:", error);
      throw error;
   }
};

export const useNotification = () => {
   useEffect(() => {
      const initializeAndSetup = async () => {
         try {
            await initializeFirebase();
            await requestPermission();
            await getToken();
         } catch (error) {
            console.error('Failed to setup notifications:', error);
         }
      };

      initializeAndSetup();
   }, []);
};