VIDCS-3685: Connection Service integration with FCM for notifications push

Basic-Video-Chat-ConnectionService_FCM/.gitignore

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+# intellij
+*.iml
+
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+app/build
+
+.settings/
+app/jniLibs/

Basic-Video-Chat-ConnectionService_FCM/README.md

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+# Basic Video Chat ConnectionService FCM Java
+
+This application provides a completed version of the OpenTok [Basic Video Chat tutorial](https://tokbox.com/developer/tutorials/android/) for Android (differing only in some additional validation checks). Upon deploying this sample application, you should be able to have two-way audio and video communication using OpenTok.
+
+Main features:
+* Connect to an OpenTok session
+* Publish an audio-video stream to the session
+* Subscribe to another client's audio-video stream
+
+# Configure the app 
+Open the `OpenTokConfig` file and configure the `API_KEY`, `SESSION_ID`, and `TOKEN` variables. You can obtain these values from your [TokBox account](https://tokbox.com/account/#/).
+
+### (Optional) Deploy a back end web service
+
+ For a production application, the `SESSION_ID` and `TOKEN` values must be generated by your app server application and passed to the client, because:
+ - credentials would expire after a certain amount of time
+ - credentials are lined to given session (all users would be connected to the same room)
+
+To quickly deploy a pre-built server click at one of the Heroku buttons below. You'll be sent to Heroku's website and prompted for your OpenTok `API Key` and `API Secret` — you can obtain these values on your project page in your [TokBox account](https://tokbox.com/account/user/signup). If you don't have a Heroku account, you'll need to sign up (it's free).
+
+| PHP server  | Node.js server|
+| ------------- | ------------- |
+| <a href="https://heroku.com/deploy?template=https://github.com/opentok/learning-opentok-php" target="_blank"> <img src="https://www.herokucdn.com/deploy/button.png" alt="Deploy"></a>  | <a href="https://heroku.com/deploy?template=https://github.com/opentok/learning-opentok-node" target="_blank"> <img src="https://www.herokucdn.com/deploy/button.png" alt="Deploy"></a>  |
+| [Repository](https://github.com/opentok/learning-opentok-php) | [Repository](https://github.com/opentok/learning-opentok-node) |
+
+> Note: You can also build your server from scratch using one of the [server SDKs](https://tokbox.com/developer/sdks/server/).
+
+After deploying the server open the `ServerConfig` file in this project and configure the `CHAT_SERVER_URL` with your domain to fetch credentials from the server:
+
+```java
+public static final String CHAT_SERVER_URL = "https://YOURAPPNAME.herokuapp.com";
+```
+
+> Note that this application will ignore credentials in the `OpenTokConfig` file when `CHAT_SERVER_URL` contains a valid URL.
+
+This is the code responsible for retrieving the credentials from web server:
+
+```java
+private void getSession() {
+    Log.i(TAG, "getSession");
+
+    Call<GetSessionResponse> call = apiService.getSession();
+
+    call.enqueue(new Callback<GetSessionResponse>() {
+        @Override
+        public void onResponse(Call<GetSessionResponse> call, Response<GetSessionResponse> response) {
+            GetSessionResponse body = response.body();
+            initializeSession(body.apiKey, body.sessionId, body.token);
+        }
+
+        @Override
+        public void onFailure(Call<GetSessionResponse> call, Throwable t) {
+            throw new RuntimeException(t.getMessage());
+        }
+    });
+}
+```
+
+## Further Reading
+
+* Review [other sample projects](../)
+* Read more about [OpenTok Android SDK](https://tokbox.com/developer/sdks/android/)

Basic-Video-Chat-ConnectionService_FCM/app/.gitignore

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+/build
+config.gradle
+*.jar
+*.so

Basic-Video-Chat-ConnectionService_FCM/app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+apply {
+    from '../../commons.gradle'
+}
+
+android {
+    namespace "com.tokbox.sample.basicvideochat_connectionservice"
+    compileSdkVersion extCompileSdkVersion
+
+    defaultConfig {
+        applicationId "com.tokbox.sample.basicvideochat_connectionservice"
+        minSdkVersion extMinSdkVersion
+        targetSdkVersion extTargetSdkVersion
+        versionCode extVersionCode
+        versionName extVersionName
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled extMinifyEnabled
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+}
+
+dependencies {
+    // Dependency versions are defined in the ../../commons.gradle file
+    implementation "com.opentok.android:opentok-android-sdk:${extOpentokSdkVersion}"
+    implementation "androidx.appcompat:appcompat:${extAppCompatVersion}"
+    implementation "pub.devrel:easypermissions:${extEasyPermissionsVersion}"
+    implementation "androidx.constraintlayout:constraintlayout:${extConstraintLyoutVersion}"
+
+    implementation "com.squareup.retrofit2:retrofit:${extRetrofitVersion}"
+    implementation "com.squareup.okhttp3:okhttp:${extOkHttpVersion}"
+    implementation "com.squareup.retrofit2:converter-moshi:${extRetrofit2ConverterMoshi}"
+    implementation "com.squareup.okhttp3:logging-interceptor:${extOkHttpLoggingInterceptor}"
+    implementation 'com.google.firebase:firebase-messaging:24.1.1'
+    implementation 'org.json:json:20250107'
+}
+
+apply plugin: 'com.google.gms.google-services'

Basic-Video-Chat-ConnectionService_FCM/app/google-services.json

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+{
+  "project_info": {
+    "project_number": "292924425678",
+    "project_id": "vonageconnectionservice",
+    "storage_bucket": "vonageconnectionservice.firebasestorage.app"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:292924425678:android:48518cc8cb40a7c1ad579f",
+        "android_client_info": {
+          "package_name": "com.tokbox.android.vonagemeet"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyCvXYcWVJDs8aXZZEEy4KmBM4OXtbqK-S0"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:292924425678:android:63250fc79cd2e76fad579f",
+        "android_client_info": {
+          "package_name": "com.tokbox.sample.basicvideochat_connectionservice"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyCvXYcWVJDs8aXZZEEy4KmBM4OXtbqK-S0"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:292924425678:android:9fddbf141f47cc67ad579f",
+        "android_client_info": {
+          "package_name": "com.vonage.vonagemeet"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyCvXYcWVJDs8aXZZEEy4KmBM4OXtbqK-S0"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

Basic-Video-Chat-ConnectionService_FCM/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tokbox.sample.basicvideochat_connectionservice" >
+
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+    <uses-permission android:name="android.permission.READ_PHONE_NUMBERS" />
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.CALL_PHONE" />
+    <uses-permission android:name="android.permission.MANAGE_OWN_CALLS" />
+    <uses-permission android:name="android.permission.BIND_TELECOM_CONNECTION_SERVICE" />
+
+
+    <uses-feature android:name="android.hardware.camera" />
+    <uses-feature android:name="android.hardware.camera.autofocus" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name="com.tokbox.sample.basicvideochat_connectionservice.MainActivity"
+            android:screenOrientation="portrait"
+            android:label="@string/app_name"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name="com.tokbox.sample.basicvideochat_connectionservice.MyFirebaseMessagingService"
+            android:exported="false" >
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT" />
+            </intent-filter>
+        </service>
+
+        <meta-data
+            android:name="android.telecom.connectionService"
+            android:value="com.tokbox.sample.basicvideochat_connectionservice.VonageConnectionService" >
+        </meta-data>
+
+        <service
+            android:name="com.tokbox.sample.basicvideochat_connectionservice.VonageConnectionService"
+            android:exported="true"
+            android:permission="android.permission.BIND_TELECOM_CONNECTION_SERVICE" >
+            <intent-filter>
+                <action android:name="android.telecom.ConnectionService" />
+            </intent-filter>
+        </service>
+    </application>
+
+</manifest>

Basic-Video-Chat-ConnectionService_FCM/app/src/main/java/com/tokbox/sample/basicvideochat_connectionservice/CallEventListener.java

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+package com.tokbox.sample.basicvideochat_connectionservice;
+
+public interface CallEventListener {
+    void onIncomingCall(String callerName, String callStatus);
+}