Hooking up the whole firebase of the project via firebase CLI.

Also used flutter_fire firebase_core among several other libs.

Changes to be committed:
    new file:   client_app_flutter/android/app/google-services.json
    modified:   client_app_flutter/android/build.gradle
    new file:   client_app_flutter/ios/Runner/GoogleService-Info.plist
    new file:   client_app_flutter/ios/firebase_app_id_file.json
    new file:   client_app_flutter/lib/firebase_options.dart
    modified:   client_app_flutter/lib/main.dart
    modified:   client_app_flutter/pubspec.lock
    modified:   client_app_flutter/pubspec.yaml

8 files changed, 197 insertions, 1 deletions

diff --git a/client_app_flutter/android/app/google-services.json b/client_app_flutter/android/app/google-services.json
new file mode 100644
index 0000000..5bea544
--- /dev/null
+++ b/client_app_flutter/android/app/google-services.json
@@ -0,0 +1,29 @@
+{
+  "project_info": {
+    "project_number": "443484865448",
+    "project_id": "meteo-board",
+    "storage_bucket": "meteo-board.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:443484865448:android:896502083b5ab60d5c539d",
+        "android_client_info": {
+          "package_name": "com.example.client_app_flutter"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyAY0cu67hMFb_5BHj3iG9afj73d_7UMSY0"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
\ No newline at end of file
diff --git a/client_app_flutter/android/build.gradle b/client_app_flutter/android/build.gradle
index f7eb7f6..0391438 100644
--- a/client_app_flutter/android/build.gradle
+++ b/client_app_flutter/android/build.gradle
@@ -7,6 +7,9 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:7.3.0'
+        // START: FlutterFire Configuration
+        classpath 'com.google.gms:google-services:4.3.10'
+        // END: FlutterFire Configuration
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/client_app_flutter/ios/Runner/GoogleService-Info.plist b/client_app_flutter/ios/Runner/GoogleService-Info.plist
new file mode 100644
index 0000000..5a9bea1
--- /dev/null
+++ b/client_app_flutter/ios/Runner/GoogleService-Info.plist
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>API_KEY</key>
+	<string>AIzaSyAtgMdecbtsvfeUFxCMw9GzJ1hlwgoRWg8</string>
+	<key>GCM_SENDER_ID</key>
+	<string>443484865448</string>
+	<key>PLIST_VERSION</key>
+	<string>1</string>
+	<key>BUNDLE_ID</key>
+	<string>com.example.clientAppFlutter</string>
+	<key>PROJECT_ID</key>
+	<string>meteo-board</string>
+	<key>STORAGE_BUCKET</key>
+	<string>meteo-board.appspot.com</string>
+	<key>IS_ADS_ENABLED</key>
+	<false></false>
+	<key>IS_ANALYTICS_ENABLED</key>
+	<false></false>
+	<key>IS_APPINVITE_ENABLED</key>
+	<true></true>
+	<key>IS_GCM_ENABLED</key>
+	<true></true>
+	<key>IS_SIGNIN_ENABLED</key>
+	<true></true>
+	<key>GOOGLE_APP_ID</key>
+	<string>1:443484865448:ios:2616959ce13fc6615c539d</string>
+</dict>
+</plist>
\ No newline at end of file
diff --git a/client_app_flutter/ios/firebase_app_id_file.json b/client_app_flutter/ios/firebase_app_id_file.json
new file mode 100644
index 0000000..4fb4455
--- /dev/null
+++ b/client_app_flutter/ios/firebase_app_id_file.json
@@ -0,0 +1,7 @@
+{
+  "file_generated_by": "FlutterFire CLI",
+  "purpose": "FirebaseAppID & ProjectID for this Firebase app in this directory",
+  "GOOGLE_APP_ID": "1:443484865448:ios:2616959ce13fc6615c539d",
+  "FIREBASE_PROJECT_ID": "meteo-board",
+  "GCM_SENDER_ID": "443484865448"
+}
\ No newline at end of file
diff --git a/client_app_flutter/lib/firebase_options.dart b/client_app_flutter/lib/firebase_options.dart
new file mode 100644
index 0000000..74ffc72
--- /dev/null
+++ b/client_app_flutter/lib/firebase_options.dart
@@ -0,0 +1,75 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: lines_longer_than_80_chars, avoid_classes_with_only_static_members
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      return web;
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for macos - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions web = FirebaseOptions(
+    apiKey: 'AIzaSyD-EugJi1MyqWe4l8G4DqtjykEeqnevsT8',
+    appId: '1:443484865448:web:dffd1d739cceccf25c539d',
+    messagingSenderId: '443484865448',
+    projectId: 'meteo-board',
+    authDomain: 'meteo-board.firebaseapp.com',
+    storageBucket: 'meteo-board.appspot.com',
+    measurementId: 'G-7GCWGR3SVN',
+  );
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'AIzaSyAY0cu67hMFb_5BHj3iG9afj73d_7UMSY0',
+    appId: '1:443484865448:android:896502083b5ab60d5c539d',
+    messagingSenderId: '443484865448',
+    projectId: 'meteo-board',
+    storageBucket: 'meteo-board.appspot.com',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'AIzaSyAtgMdecbtsvfeUFxCMw9GzJ1hlwgoRWg8',
+    appId: '1:443484865448:ios:2616959ce13fc6615c539d',
+    messagingSenderId: '443484865448',
+    projectId: 'meteo-board',
+    storageBucket: 'meteo-board.appspot.com',
+    iosBundleId: 'com.example.clientAppFlutter',
+  );
+}
diff --git a/client_app_flutter/lib/main.dart b/client_app_flutter/lib/main.dart
index dda5554..e00d0ae 100644
--- a/client_app_flutter/lib/main.dart
+++ b/client_app_flutter/lib/main.dart
@@ -1,6 +1,11 @@
 import 'package:flutter/material.dart';
 
-void main() {
+import 'package:firebase_core/firebase_core.dart';
+import 'package:client_app_flutter/firebase_options.dart';
+
+Future <void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
   runApp(const MyApp());
 }
 
diff --git a/client_app_flutter/pubspec.lock b/client_app_flutter/pubspec.lock
index 0b808da..b796c5a 100644
--- a/client_app_flutter/pubspec.lock
+++ b/client_app_flutter/pubspec.lock
@@ -57,6 +57,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  firebase_core:
+    dependency: "direct main"
+    description:
+      name: firebase_core
+      sha256: "7706f4ade6cc2698c70074083bc262586a185047f6bfdd53938dcc35d35cbb9e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.21.0"
+  firebase_core_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_core_platform_interface
+      sha256: c437ae5d17e6b5cc7981cf6fd458a5db4d12979905f9aafd1fea930428a9fe63
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.0"
+  firebase_core_web:
+    dependency: transitive
+    description:
+      name: firebase_core_web
+      sha256: "0631a2ec971dbc540275e2fa00c3a8a2676f0a7adbc3c197d6fba569db689d97"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.8.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -75,6 +99,19 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.7"
   lints:
     dependency: transitive
     description:
@@ -115,6 +152,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.8.3"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: da3fdfeccc4d4ff2da8f8c556704c08f912542c5fb3cf2233ed75372384a034d
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.6"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -186,3 +231,4 @@ packages:
     version: "0.1.4-beta"
 sdks:
   dart: ">=3.1.4 <4.0.0"
+  flutter: ">=3.3.0"
diff --git a/client_app_flutter/pubspec.yaml b/client_app_flutter/pubspec.yaml
index c77b3d0..177ae79 100644
--- a/client_app_flutter/pubspec.yaml
+++ b/client_app_flutter/pubspec.yaml
@@ -35,6 +35,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
+  firebase_core: ^2.21.0
 
 dev_dependencies:
   flutter_test: