import 'package:flutter/material.dart'; import 'package:flutter_chat_ui/flutter_chat_ui.dart'; import 'package:intl/intl.dart'; void main() { runApp(const ChatApp()); } class ChatApp extends StatelessWidget { const ChatApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( title: 'Company Assistant', theme: ThemeData( primarySwatch: Colors.blue, visualDensity: VisualDensity.adaptivePlatformDensity, ), home: const ChatScreen(), ); } } class ChatScreen extends StatefulWidget { const ChatScreen({super.key}); @override State createState() => _ChatScreenState(); } class _ChatScreenState extends State { final List _messages = []; final TextEditingController _textController = TextEditingController(); void _handleSubmitted(String text) { _textController.clear(); // Add user message setState(() { _messages.insert(0, ChatMessage( text: text, isUser: true, timestamp: DateTime.now(), )); }); // Simulate bot response Future.delayed(const Duration(seconds: 1), () { setState(() { _messages.insert(0, ChatMessage( text: _generateResponse(text), isUser: false, timestamp: DateTime.now(), )); }); }); } String _generateResponse(String query) { // In a real app, this would query your knowledge base return "Based on our company policies, here's the information regarding '$query': [Sample response from knowledge base]"; } void _handleFeedback(bool isHelpful, int messageIndex) { // In a real app, this would send feedback to your backend final message = _messages[messageIndex]; debugPrint('Feedback for "${message.text}": ${isHelpful ? "Helpful" : "Not Helpful"}'); ScaffoldMessenger.of(context).showSnackBar( SnackBar(content: Text('Thank you for your feedback!')), ); } @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Company Assistant'), actions: [ IconButton( icon: const Icon(Icons.settings), onPressed: () { // Settings would go here }, ), ], ), body: Column( children: [ Expanded( child: ListView.builder( reverse: true, itemCount: _messages.length, itemBuilder: (context, index) { final message = _messages[index]; return ChatBubble( message: message, onFeedback: (isHelpful) => _handleFeedback(isHelpful, index), ); }, ), ), const Divider(height: 1.0), Container( decoration: BoxDecoration( color: Theme.of(context).cardColor, ), child: _buildTextComposer(), ), ], ), ); } Widget _buildTextComposer() { return IconTheme( data: IconThemeData(color: Theme.of(context).colorScheme.secondary), child: Container( margin: const EdgeInsets.symmetric(horizontal: 8.0), child: Row( children: [ Flexible( child: TextField( controller: _textController, onSubmitted: _handleSubmitted, decoration: const InputDecoration.collapsed( hintText: 'Ask a question about company policies...', ), ), ), IconButton( icon: const Icon(Icons.send), onPressed: () => _handleSubmitted(_textController.text), ), ], ), ), ); } } class ChatMessage { final String text; final bool isUser; final DateTime timestamp; ChatMessage({ required this.text, required this.isUser, required this.timestamp, }); } class ChatBubble extends StatelessWidget { final ChatMessage message; final Function(bool)? onFeedback; const ChatBubble({ super.key, required this.message, this.onFeedback, }); @override Widget build(BuildContext context) { return Container( margin: const EdgeInsets.symmetric(vertical: 10.0, horizontal: 16.0), child: Column( crossAxisAlignment: message.isUser ? CrossAxisAlignment.end : CrossAxisAlignment.start, children: [ Container( padding: const EdgeInsets.all(12.0), decoration: BoxDecoration( color: message.isUser ? Colors.blue[100] : Colors.grey[200], borderRadius: BorderRadius.circular(8.0), ), child: Text(message.text), ), const SizedBox(height: 4.0), Text( DateFormat('HH:mm').format(message.timestamp), style: const TextStyle( fontSize: 12.0, color: Colors.grey, ), ), if (!message.isUser && onFeedback != null) ...[ const SizedBox(height: 8.0), Row( children: [ TextButton( onPressed: () => onFeedback!(true), child: const Text('Helpful'), ), TextButton( onPressed: () => onFeedback!(false), child: const Text('Not Helpful'), ), ], ), ], ], ), ); } } name: company_assistant description: An intranet-based assistant for company employees. version: 1.0.0+1 environment: sdk: '>=3.0.0 <4.0.0' dependencies: flutter: sdk: flutter intl: ^0.18.1 flutter_chat_ui: ^1.1.8 dev_dependencies: flutter_test: sdk: flutter flutter_lints: ^2.0.0 flutter: uses-material-design: true