send SMS on fcm data msg received

app/build.gradle

@@ -41,4 +41,6 @@ dependencies {
     implementation 'com.google.firebase:firebase-analytics'
     implementation 'com.google.firebase:firebase-messaging'
     implementation 'com.google.firebase:firebase-messaging-directboot'
+
+    implementation 'com.google.code.gson:gson:2.9.0'
 }

app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.vernu.sms">
+
     <uses-permission android:name="android.permission.SEND_SMS" />
     <application
         android:allowBackup="true"
@@ -13,6 +14,9 @@
             android:name=".services.FCMService"
             android:exported="false"
             android:directBootAware="true">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
         </service>
         <activity
             android:name="com.vernu.sms.activities.MainActivity"

app/src/main/java/com/vernu/sms/helpers/SMSHelper.java

@@ -3,7 +3,7 @@ package com.vernu.sms.helpers;
 import android.telephony.SmsManager;
 
 public class SMSHelper {
-    private static void sendSMS(String phoneNo, String message){
+    public static void sendSMS(String phoneNo, String message) {
         SmsManager smsManager = SmsManager.getDefault();
         smsManager.sendTextMessage(phoneNo, null, message, null, null);
     }

app/src/main/java/com/vernu/sms/models/SMSPayload.java

@@ -0,0 +1,11 @@
+package com.vernu.sms.models;
+
+public class SMSPayload {
+    public String[] receivers;
+    public String smsBody;
+
+    public SMSPayload(String[] receivers, String smsBody) {
+        this.receivers = receivers;
+        this.smsBody = smsBody;
+    }
+}

app/src/main/java/com/vernu/sms/services/FCMService.java

@@ -8,13 +8,17 @@ import android.content.Intent;
 import android.media.RingtoneManager;
 import android.net.Uri;
 import android.os.Build;
+import android.util.Log;
 
 import androidx.core.app.NotificationCompat;
 
 import com.google.firebase.messaging.FirebaseMessagingService;
 import com.google.firebase.messaging.RemoteMessage;
+import com.google.gson.Gson;
 import com.vernu.sms.R;
 import com.vernu.sms.activities.MainActivity;
+import com.vernu.sms.helpers.SMSHelper;
+import com.vernu.sms.models.SMSPayload;
 
 
 public class FCMService extends FirebaseMessagingService {
@@ -25,14 +29,25 @@ public class FCMService extends FirebaseMessagingService {
     @Override
     public void onMessageReceived(RemoteMessage remoteMessage) {
 
+        Log.d("FCM_MESSAGE", remoteMessage.getData().toString());
+
+        Gson gson = new Gson();
+        SMSPayload smsPayload = gson.fromJson(remoteMessage.getData().get("smsData"), SMSPayload.class);
+
         // Check if message contains a data payload.
         if (remoteMessage.getData().size() > 0) {
-            sendNotification("data msg", "msg boody");
+            // sendNotification("data msg received ", remoteMessage.getData().toString());
+            int len = smsPayload.receivers.length;
+            if (len > 0) {
+                for (int i = 0; i < len; i++) {
+                    SMSHelper.sendSMS(smsPayload.receivers[i], smsPayload.smsBody);
+                }
+            }
         }
 
         // Check if message contains a notification payload.
         if (remoteMessage.getNotification() != null) {
-            sendNotification("notif msg", "msg body");
+            // sendNotification("notif msg", "msg body");
         }
 
     }

build.gradle

@@ -3,7 +3,6 @@ plugins {
     id 'com.android.application' version '7.1.2' apply false
     id 'com.android.library' version '7.1.2' apply false
     id 'com.google.gms.google-services' version '4.3.10' apply true
-
 }
 
 task clean(type: Delete) {