Tudo a funcionar, apenas falta a base de dados

2026-03-16 20:10:36 +00:00
parent 7ca6cc23ca
commit c5db0717c5
3 changed files with 60 additions and 31 deletions
--- a/lib/chat_screen.dart
+++ b/lib/chat_screen.dart
@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'dart:convert';
 import 'package:http/http.dart' as http;
 import 'dart:async';
+import 'package:flutter_markdown/flutter_markdown.dart';

 class ChatScreen extends StatefulWidget {
  const ChatScreen({super.key});
@@ -44,7 +45,12 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {

      if (response.statusCode == 200) {
        final data = jsonDecode(response.body);
-        print("Modelos ok");
+        print("--- MODELOS DISPONÍVEIS ---");
+        if (data['models'] != null) {
+          for (var m in data['models']) {
+            print("- ${m['name']}");
+          }
+        }
      }
    } catch (e) {
      print("Erro ao listar modelos: $e");
@@ -59,7 +65,6 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
    super.dispose();
  }

-  // Função para limpar o chat
  void _clearChat() {
    setState(() {
      _messages.clear();
@@ -68,28 +73,26 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
  }

  Future<void> _handleSubmitted(String text) async {
-    // BLOQUEIO: Se já estiver a escrever (isTyping), ignora o clique
    if (text.trim().isEmpty || _isTyping) return;

    _textController.clear();

    setState(() {
      _messages.insert(0, ChatMessage(text: text));
-      _isTyping = true; // Ativa o bloqueio
+      _isTyping = true;
    });

    try {
-      final url = Uri.parse('http://89.114.196.110:11434/v1/chat/completions');
+      final url = Uri.parse('http://89.114.196.110:11434/api/chat');

      final response = await http
          .post(
        url,
        headers: {
          'Content-Type': 'application/json',
-          'Accept': 'application/json',
        },
        body: jsonEncode({
-          'model': 'tinyllama',
+          'model': 'qwen3:4b',
          'messages': [{'role': 'user', 'content': text}],
          'stream': false, 
        }),
@@ -98,21 +101,21 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {

      if (response.statusCode == 200) {
        final data = jsonDecode(response.body);
-        final reply = data['choices'][0]['message']['content'] ?? 'Sem resposta.';
+        final reply = data['message']?['content'] ?? 'Sem resposta.';

        if (mounted) {
          setState(() {
-            _isTyping = false; // Liberta o bloqueio
+            _isTyping = false;
            _messages.insert(0, ChatMessage(text: reply, isAssistant: true));
          });
        }
      } else {
-        throw Exception('Erro ${response.statusCode}');
+        throw Exception('Erro HTTP ${response.statusCode}: ${response.body}');
      }
    } catch (e) {
      if (mounted) {
        setState(() {
-          _isTyping = false; // Liberta o bloqueio mesmo em caso de erro
+          _isTyping = false;
          _messages.insert(
            0,
            ChatMessage(text: "Erro: $e", isAssistant: true),
@@ -122,7 +125,6 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
    }
  }

-  // ... (Mantenha _buildMessage, _buildAvatar, _buildTypingIndicator e _buildAnimatedDot iguais)
  Widget _buildMessage(ChatMessage message) {
    bool isAssistant = message.isAssistant;
    return Padding(
@@ -134,7 +136,7 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
          if (isAssistant) _buildAvatar(Icons.auto_awesome),
          Flexible(
            child: Container(
-              padding: const EdgeInsets.symmetric(horizontal: 20.0, vertical: 14.0),
+              padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 10.0),
              decoration: BoxDecoration(
                gradient: isAssistant
                    ? const LinearGradient(colors: [Color(0xFFF1F5F9), Color(0xFFE2E8F0)])
@@ -146,9 +148,18 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
                  bottomRight: Radius.circular(isAssistant ? 20 : 4),
                ),
              ),
-              child: Text(
+              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: TextStyle(color: isAssistant ? Colors.black87 : Colors.white),
+                    style: const TextStyle(color: Colors.white, fontSize: 15, height: 1.4),
                  ),
            ),
          ),
@@ -219,10 +230,9 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
          child: SafeArea(
            child: Row(
              children: [
-                // BOTÃO APAGAR CHAT
                IconButton(
                  icon: const Icon(Icons.delete_sweep_rounded, color: Colors.redAccent),
-                  onPressed: _isTyping ? null : _clearChat, // Desativa enquanto digita
+                  onPressed: _isTyping ? null : _clearChat,
                ),
                Expanded(
                  child: Container(
@@ -233,7 +243,7 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
                    ),
                    child: TextField(
                      controller: _textController,
-                      enabled: !_isTyping, // Bloqueia o campo de texto
+                      enabled: !_isTyping,
                      onSubmitted: _handleSubmitted,
                      decoration: InputDecoration(
                        hintText: _isTyping ? "Aguarde a resposta..." : "Mensagem EPVChat...",
@@ -248,7 +258,7 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
                  decoration: BoxDecoration(
                    gradient: LinearGradient(
                      colors: _isTyping
-                          ? [Colors.grey, Colors.grey] // Cor de desativado
+                          ? [Colors.grey, Colors.grey]
                          : [const Color(0xFF8ad5c9), const Color(0xFF57a7ed)],
                      begin: Alignment.topLeft,
                      end: Alignment.bottomRight,
@@ -279,20 +289,15 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
          Expanded(
            child: ListView(
              controller: _scrollController,
-              reverse: true, // Mantém a lógica de mensagens novas em baixo
+              reverse: true,
              children: [
-                // As mensagens vêm primeiro (no reverse: true, o topo da lista é o fundo do ecrã)
                ...(_isTyping ? [_buildTypingIndicator()] : []),
                ..._messages.map((msg) => _buildMessage(msg)),
-
-                // O LOGO E O SOMBREADO AGORA SÃO O ÚLTIMO ITEM DO LISTVIEW
-                // Quando o utilizador sobe o chat, eles sobem junto
                Padding(
                  padding: const EdgeInsets.only(bottom: 50, top: 20),
                  child: Stack(
                    alignment: Alignment.center,
                    children: [
-                      // O Sombreado Verde
                      Container(
                        height: screenWidth * 0.8,
                        decoration: BoxDecoration(
@@ -305,7 +310,6 @@ class _ChatScreenState extends State<ChatScreen> with TickerProviderStateMixin {
                          ),
                        ),
                      ),
-                      // O Logo
                      Image.asset(
                        'assets/logo.png',
                        height: 170,
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
  async:
    dependency: transitive
    description:
@@ -70,6 +78,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "6.0.0"
+  flutter_markdown:
+    dependency: "direct main"
+    description:
+      name: flutter_markdown
+      sha256: "08fb8315236099ff8e90cb87bb2b935e0a724a3af1623000a9cec930468e0f27"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.7+1"
  flutter_test:
    dependency: "direct dev"
    description: flutter
@@ -123,6 +139,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "6.1.0"
+  markdown:
+    dependency: transitive
+    description:
+      name: markdown
+      sha256: "935e23e1ff3bc02d390bad4d4be001208ee92cc217cb5b5a6c19bc14aaa318c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.3.0"
  matcher:
    dependency: transitive
    description:
@@ -242,4 +266,4 @@ packages:
    version: "1.1.1"
 sdks:
  dart: ">=3.11.1 <4.0.0"
-  flutter: ">=3.18.0-18.0.pre.54"
+  flutter: ">=3.22.0"
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -12,6 +12,7 @@ dependencies:
    sdk: flutter
  cupertino_icons: ^1.0.8
  http: ^1.6.0
+  flutter_markdown: ^0.7.3

 dev_dependencies:
  flutter_test: