Migrate code from firebase_vertexai --> firebase_ai

Author: khanhnwin

agentic_app_manager/lib/agentic_app_manager/app_agent.dart

@@ -2,13 +2,13 @@ import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:firebase_vertexai/firebase_vertexai.dart';
-import 'tools.dart';
+import 'package:firebase_ai/firebase_ai.dart';
 import '../app_state.dart';
 import '../utils/utils.dart';
+import './tools.dart';
 
 class AppAgent {
-  final gemini = FirebaseVertexAI.instance.generativeModel(
+  final gemini = FirebaseAI.vertexAI().generativeModel(
     systemInstruction: Content.text('''
       You are a friendly and helpful app concierge. Your job is to help the user
       get the best, frictionless app experience. 

agentic_app_manager/lib/agentic_app_manager/tools.dart

@@ -1,4 +1,4 @@
-import 'package:firebase_vertexai/firebase_vertexai.dart';
+import 'package:firebase_ai/firebase_ai.dart';
 
 final askConfirmationTool = FunctionDeclaration(
   'askConfirmation',

agentic_app_manager/lib/audio_app_manager/audio_app_manager_demo.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:firebase_vertexai/firebase_vertexai.dart';
+import 'package:firebase_ai/firebase_ai.dart';
 import 'dart:async';
 import 'dart:developer';
 import 'package:record/record.dart';
@@ -56,7 +56,7 @@ class AudioAgentApp extends StatefulWidget {
 }
 
 class _AudioAgentAppState extends State<AudioAgentApp> {
-  final LiveGenerativeModel _liveModel = FirebaseVertexAI.instance
+  final LiveGenerativeModel _liveModel = FirebaseAI.vertexAI()
       .liveGenerativeModel(
         systemInstruction: Content.text('''
       You are a friendly and helpful app concierge. Your job is to help the user

agentic_app_manager/lib/image_generator.dart

@@ -1,8 +1,8 @@
 import 'dart:typed_data';
-import 'package:firebase_vertexai/firebase_vertexai.dart';
+import 'package:firebase_ai/firebase_ai.dart';
 
 class AIImageGenerator {
-  ImagenModel model = FirebaseVertexAI.instance.imagenModel(
+  ImagenModel model = FirebaseAI.vertexAI().imagenModel(
     model: 'imagen-3.0-generate-002',
     generationConfig: ImagenGenerationConfig(numberOfImages: 4),
   );

agentic_app_manager/lib/utils/utils.dart

@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:firebase_vertexai/firebase_vertexai.dart';
+import 'package:firebase_ai/firebase_ai.dart';
 import 'package:provider/provider.dart';
 import './device_helper.dart';
 import '../app_state.dart';

agentic_app_manager/pubspec.yaml

@@ -35,14 +35,14 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
   feedback: ^3.1.0
-  firebase_vertexai: ^1.7.0
   provider: ^6.1.2
   device_info_plus: ^11.3.3
   battery_plus: ^6.2.1
-
   firebase_core: any
   record: ^6.0.0
   flutter_soloud: ^3.1.10
+  firebase_ai: ^2.0.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter