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Mudança nos icones de ios.

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240405
2026-03-16 22:24:32 +00:00
parent c5db0717c5
commit 4bd018e8f8
37 changed files with 560 additions and 140 deletions
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381
lib/chat_screen.dart
View File

@@ -4,6 +4,7 @@ import 'dart:convert';
import 'package:http/http.dart' as http;
import 'dart:async';
import 'package:flutter_markdown/flutter_markdown.dart';
import 'database_helper.dart';
class ChatScreen extends StatefulWidget {
const ChatScreen({super.key});
@@ -12,17 +13,15 @@ class ChatScreen extends StatefulWidget {
State<ChatScreen> createState() => _ChatScreenState();
}
class ChatMessage {
final String text;
final bool isAssistant;
ChatMessage({required this.text, this.isAssistant = false});
}
class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
final List<ChatMessage> _messages = [];
final List<ChatSession> _sessions = [];
ChatSession? _currentSession;
final TextEditingController _textController = TextEditingController();
final ScrollController _scrollController = ScrollController();
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
bool _isTyping = false;
late AnimationController _typingController;
@@ -34,26 +33,62 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
duration: const Duration(milliseconds: 1200),
)..repeat();
Timer(const Duration(seconds: 2), () => _checkAvailableModels());
_loadInitialData();
}
Future<void> _checkAvailableModels() async {
try {
final response = await http.get(
Uri.parse('http://89.114.196.110:11434/api/tags'),
).timeout(const Duration(seconds: 15));
Future<void> _loadInitialData() async {
await _loadSessions();
if (_sessions.isNotEmpty) {
await _selectSession(_sessions.first);
} else {
await _createNewSession();
}
}
if (response.statusCode == 200) {
final data = jsonDecode(response.body);
print("--- MODELOS DISPONÍVEIS ---");
if (data['models'] != null) {
for (var m in data['models']) {
print("- ${m['name']}");
}
}
Future<void> _loadSessions() async {
final sessions = await DatabaseHelper.instance.getSessions();
if (mounted) {
setState(() {
_sessions.clear();
_sessions.addAll(sessions);
});
}
}
Future<void> _selectSession(ChatSession session) async {
final messages = await DatabaseHelper.instance.getMessages(session.id!);
if (mounted) {
setState(() {
_currentSession = session;
_messages.clear();
_messages.addAll(messages.reversed);
_isTyping = false;
});
}
if (_scaffoldKey.currentState?.isDrawerOpen ?? false) {
Navigator.pop(context);
}
}
Future<void> _createNewSession() async {
final title = "Chat ${DateTime.now().hour}:${DateTime.now().minute}";
final id = await DatabaseHelper.instance.createSession(title);
await _loadSessions();
final newSession = _sessions.firstWhere((s) => s.id == id);
await _selectSession(newSession);
}
Future<void> _deleteSession(int id) async {
await DatabaseHelper.instance.deleteSession(id);
await _loadSessions();
if (_currentSession?.id == id) {
if (_sessions.isNotEmpty) {
await _selectSession(_sessions.first);
} else {
await _createNewSession();
}
} catch (e) {
print("Erro ao listar modelos: $e");
} else {
setState(() {});
}
}
@@ -65,61 +100,76 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
super.dispose();
}
void _clearChat() {
setState(() {
_messages.clear();
_isTyping = false;
});
}
Future<void> _handleSubmitted(String text) async {
if (text.trim().isEmpty || _isTyping) return;
// Se por algum motivo não houver sessão, cria uma antes de enviar
if (_currentSession == null) {
await _createNewSession();
}
final userMsgText = text.trim();
_textController.clear();
final userMsg = ChatMessage(
sessionId: _currentSession!.id!,
text: userMsgText,
isAssistant: false,
timestamp: DateTime.now().toIso8601String(),
);
await DatabaseHelper.instance.insertMessage(userMsg);
setState(() {
_messages.insert(0, ChatMessage(text: text));
_messages.insert(0, userMsg);
_isTyping = true;
});
try {
final url = Uri.parse('http://89.114.196.110:11434/api/chat');
final response = await http
.post(
final response = await http.post(
url,
headers: {
'Content-Type': 'application/json',
},
headers: {'Content-Type': 'application/json'},
body: jsonEncode({
'model': 'qwen3:4b',
'messages': [{'role': 'user', 'content': text}],
'stream': false,
'messages': [{'role': 'user', 'content': userMsgText}],
'stream': false,
}),
)
.timeout(const Duration(seconds: 60));
).timeout(const Duration(seconds: 60));
if (response.statusCode == 200) {
final data = jsonDecode(response.body);
final reply = data['message']?['content'] ?? 'Sem resposta.';
final replyText = data['message']?['content'] ?? 'Sem resposta.';
final assistantMsg = ChatMessage(
sessionId: _currentSession!.id!,
text: replyText,
isAssistant: true,
timestamp: DateTime.now().toIso8601String(),
);
await DatabaseHelper.instance.insertMessage(assistantMsg);
if (mounted) {
setState(() {
_isTyping = false;
_messages.insert(0, ChatMessage(text: reply, isAssistant: true));
_messages.insert(0, assistantMsg);
});
}
} else {
throw Exception('Erro HTTP ${response.statusCode}: ${response.body}');
throw Exception('Erro HTTP ${response.statusCode}');
}
} catch (e) {
if (mounted) {
setState(() {
_isTyping = false;
_messages.insert(
0,
ChatMessage(text: "Erro: $e", isAssistant: true),
);
_messages.insert(0, ChatMessage(
sessionId: _currentSession!.id!,
text: "Erro de ligação. Verifique se o servidor está online.",
isAssistant: true,
timestamp: DateTime.now().toIso8601String(),
));
});
}
}
@@ -147,20 +197,19 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
bottomLeft: Radius.circular(isAssistant ? 4 : 20),
bottomRight: Radius.circular(isAssistant ? 20 : 4),
),
boxShadow: [
BoxShadow(color: Colors.black.withOpacity(0.05), blurRadius: 5, offset: const Offset(0, 2)),
],
),
child: isAssistant
child: isAssistant
? MarkdownBody(
data: message.text,
styleSheet: MarkdownStyleSheet(
p: const TextStyle(color: Colors.black87, fontSize: 15, height: 1.4),
strong: const TextStyle(color: Colors.black, fontWeight: FontWeight.bold),
listBullet: const TextStyle(color: Colors.black87),
),
)
: Text(
message.text,
style: const TextStyle(color: Colors.white, fontSize: 15, height: 1.4),
),
: Text(message.text, style: const TextStyle(color: Colors.white, fontSize: 15)),
),
),
if (!isAssistant) _buildAvatar(Icons.person),
@@ -218,61 +267,47 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
}
Widget _buildTextComposer() {
return ClipRRect(
child: BackdropFilter(
filter: ImageFilter.blur(sigmaX: 10, sigmaY: 10),
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 12.0),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.8),
border: Border(top: BorderSide(color: Colors.black.withOpacity(0.05), width: 0.5)),
),
child: SafeArea(
child: Row(
children: [
IconButton(
icon: const Icon(Icons.delete_sweep_rounded, color: Colors.redAccent),
onPressed: _isTyping ? null : _clearChat,
return Container(
padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 12.0),
decoration: BoxDecoration(
color: Colors.white,
border: Border(top: BorderSide(color: Colors.black.withOpacity(0.05))),
),
child: SafeArea(
child: Row(
children: [
Expanded(
child: Container(
decoration: BoxDecoration(
color: const Color(0xFFF1F5F9),
borderRadius: BorderRadius.circular(30.0),
),
Expanded(
child: Container(
decoration: BoxDecoration(
color: const Color(0xFFF1F5F9),
borderRadius: BorderRadius.circular(30.0),
border: Border.all(color: Colors.black.withOpacity(0.05)),
),
child: TextField(
controller: _textController,
enabled: !_isTyping,
onSubmitted: _handleSubmitted,
decoration: InputDecoration(
hintText: _isTyping ? "Aguarde a resposta..." : "Mensagem EPVChat...",
border: InputBorder.none,
contentPadding: const EdgeInsets.symmetric(horizontal: 24.0, vertical: 14.0),
),
),
child: TextField(
controller: _textController,
enabled: !_isTyping,
onSubmitted: _handleSubmitted,
decoration: const InputDecoration(
hintText: "Mensagem EPVChat...",
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(horizontal: 24.0, vertical: 14.0),
),
),
const SizedBox(width: 8),
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: _isTyping
? [Colors.grey, Colors.grey]
: [const Color(0xFF8ad5c9), const Color(0xFF57a7ed)],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
shape: BoxShape.circle,
),
child: IconButton(
icon: const Icon(Icons.send_rounded, color: Colors.white),
onPressed: _isTyping ? null : () => _handleSubmitted(_textController.text),
),
),
],
),
),
),
const SizedBox(width: 12),
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: _isTyping ? [Colors.grey, Colors.grey] : [const Color(0xFF8ad5c9), const Color(0xFF57a7ed)],
),
shape: BoxShape.circle,
),
child: IconButton(
icon: const Icon(Icons.send_rounded, color: Colors.white),
onPressed: _isTyping ? null : () => _handleSubmitted(_textController.text),
),
),
],
),
),
);
@@ -283,45 +318,123 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
final screenWidth = MediaQuery.of(context).size.width;
return Scaffold(
key: _scaffoldKey,
drawer: _buildSidebar(),
backgroundColor: Colors.white,
body: Column(
body: Stack(
children: [
Expanded(
child: ListView(
controller: _scrollController,
reverse: true,
children: [
...(_isTyping ? [_buildTypingIndicator()] : []),
..._messages.map((msg) => _buildMessage(msg)),
Padding(
padding: const EdgeInsets.only(bottom: 50, top: 20),
child: Stack(
alignment: Alignment.center,
// Sombreado Mint
Positioned(
top: -screenWidth * 0.45,
left: -screenWidth * 0.2,
right: -screenWidth * 0.2,
child: Container(
height: screenWidth * 1.1,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: RadialGradient(
center: Alignment.center,
radius: 0.5,
colors: [const Color(0xFF8ad5c9).withOpacity(0.6), const Color(0xFF8ad5c9).withOpacity(0.0)],
stops: const [0.2, 1.0],
),
),
),
),
Column(
children: [
// Área do Topo (Menu e Logo)
SafeArea(
child: Container(
height: 100,
padding: const EdgeInsets.symmetric(horizontal: 16),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Container(
height: screenWidth * 0.8,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: RadialGradient(
colors: [
const Color(0xFF8ad5c9).withOpacity(0.4),
const Color(0xFF8ad5c9).withOpacity(0.0),
],
),
),
),
Image.asset(
'assets/logo.png',
height: 170,
fit: BoxFit.contain,
IconButton(
icon: const Icon(Icons.menu_rounded, color: Color(0xFF57a7ed), size: 32),
onPressed: () => _scaffoldKey.currentState?.openDrawer(),
),
Image.asset('assets/logo.png', height: 100, errorBuilder: (c,e,s) => const SizedBox(width: 100)),
const SizedBox(width: 48), // Equilíbrio para o ícone do menu
],
),
),
],
),
Expanded(
child: ListView.builder(
controller: _scrollController,
padding: const EdgeInsets.symmetric(vertical: 20),
reverse: true,
itemCount: _messages.length + (_isTyping ? 1 : 0),
itemBuilder: (context, index) {
if (_isTyping && index == 0) return _buildTypingIndicator();
int msgIndex = _isTyping ? index - 1 : index;
return _buildMessage(_messages[msgIndex]);
},
),
),
_buildTextComposer(),
],
),
],
),
);
}
Widget _buildSidebar() {
return Drawer(
width: MediaQuery.of(context).size.width * 0.75,
child: Column(
children: [
DrawerHeader(
decoration: const BoxDecoration(
gradient: LinearGradient(colors: [Color(0xFF8ad5c9), Color(0xFF57a7ed)]),
),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Icon(Icons.auto_awesome, color: Colors.white, size: 40),
const SizedBox(height: 10),
const Text('Histórico de Chats', style: TextStyle(color: Colors.white, fontSize: 18, fontWeight: FontWeight.bold)),
],
),
),
),
ListTile(
leading: const Icon(Icons.add_comment_rounded, color: Color(0xFF57a7ed)),
title: const Text('Nova Conversa', style: TextStyle(fontWeight: FontWeight.bold)),
onTap: _createNewSession,
),
const Divider(),
Expanded(
child: ListView.builder(
padding: EdgeInsets.zero,
itemCount: _sessions.length,
itemBuilder: (context, index) {
final session = _sessions[index];
final isSelected = _currentSession?.id == session.id;
return Container(
margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
decoration: BoxDecoration(
color: isSelected ? const Color(0xFF8ad5c9).withOpacity(0.1) : Colors.transparent,
borderRadius: BorderRadius.circular(12),
),
child: ListTile(
title: Text(session.title, maxLines: 1, overflow: TextOverflow.ellipsis),
trailing: IconButton(
icon: const Icon(Icons.delete_outline_rounded, color: Colors.redAccent),
onPressed: () => _deleteSession(session.id!),
),
onTap: () => _selectSession(session),
),
);
},
),
),
_buildTextComposer(),
],
),
);

144
lib/database_helper.dart Normal file
View File

@@ -0,0 +1,144 @@
import 'package:sqflite/sqflite.dart';
import 'package:path/path.dart';
class ChatSession {
final int? id;
final String title;
final String timestamp;
ChatSession({this.id, required this.title, required this.timestamp});
Map<String, dynamic> toMap() {
return {
'id': id,
'title': title,
'timestamp': timestamp,
};
}
factory ChatSession.fromMap(Map<String, dynamic> map) {
return ChatSession(
id: map['id'],
title: map['title'],
timestamp: map['timestamp'],
);
}
}
class ChatMessage {
final int? id;
final int sessionId;
final String text;
final bool isAssistant;
final String timestamp;
ChatMessage({
this.id,
required this.sessionId,
required this.text,
required this.isAssistant,
required this.timestamp,
});
Map<String, dynamic> toMap() {
return {
'id': id,
'sessionId': sessionId,
'text': text,
'isAssistant': isAssistant ? 1 : 0,
'timestamp': timestamp,
};
}
factory ChatMessage.fromMap(Map<String, dynamic> map) {
return ChatMessage(
id: map['id'],
sessionId: map['sessionId'],
text: map['text'],
isAssistant: map['isAssistant'] == 1,
timestamp: map['timestamp'],
);
}
}
class DatabaseHelper {
static final DatabaseHelper instance = DatabaseHelper._init();
static Database? _database;
DatabaseHelper._init();
Future<Database> get database async {
if (_database != null) return _database!;
_database = await _initDB('chat.db');
return _database!;
}
Future<Database> _initDB(String filePath) async {
final dbPath = await getDatabasesPath();
final path = join(dbPath, filePath);
return await openDatabase(
path,
version: 1,
onCreate: _createDB,
);
}
Future _createDB(Database db, int version) async {
await db.execute('''
CREATE TABLE sessions (
id INTEGER PRIMARY KEY AUTOINCREMENT,
title TEXT NOT NULL,
timestamp TEXT NOT NULL
)
''');
await db.execute('''
CREATE TABLE messages (
id INTEGER PRIMARY KEY AUTOINCREMENT,
sessionId INTEGER NOT NULL,
text TEXT NOT NULL,
isAssistant INTEGER NOT NULL,
timestamp TEXT NOT NULL,
FOREIGN KEY (sessionId) REFERENCES sessions (id) ON DELETE CASCADE
)
''');
}
// Session operations
Future<int> createSession(String title) async {
final db = await instance.database;
return await db.insert('sessions', {
'title': title,
'timestamp': DateTime.now().toIso8601String(),
});
}
Future<List<ChatSession>> getSessions() async {
final db = await instance.database;
final result = await db.query('sessions', orderBy: 'timestamp DESC');
return result.map((json) => ChatSession.fromMap(json)).toList();
}
Future<void> deleteSession(int id) async {
final db = await instance.database;
await db.delete('sessions', where: 'id = ?', whereArgs: [id]);
}
// Message operations
Future<int> insertMessage(ChatMessage message) async {
final db = await instance.database;
return await db.insert('messages', message.toMap());
}
Future<List<ChatMessage>> getMessages(int sessionId) async {
final db = await instance.database;
final result = await db.query(
'messages',
where: 'sessionId = ?',
whereArgs: [sessionId],
orderBy: 'timestamp ASC',
);
return result.map((json) => ChatMessage.fromMap(json)).toList();
}
}

2
lib/main.dart
View File

@@ -11,7 +11,7 @@ class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'EPVChat! Clone',
title: 'EPVChat!',
theme: ThemeData(
brightness: Brightness.light,
scaffoldBackgroundColor: Colors.white,