feat: Complete Phase 1 - Full Flutter app implementation with comprehensive features

Version: 1.1.0 Major changes: - Implemented complete Flutter app structure with all core features - Added comprehensive UI screens for auth, countdown, goals, profile, settings, and social features - Integrated Supabase backend with authentication and data repositories - Added offline support with Hive caching and local storage - Implemented comprehensive routing with go_router - Added location services with Google Maps integration - Implemented notifications and home widget support - Added voice recording capabilities and AI chat features - Created comprehensive test suite and documentation - Added Android and iOS platform configurations - Implemented achievements system and social features - Added calendar integration and bucket list functionality This represents a complete Phase 1 milestone with 3,775 additions across 31 files.
2026-06-05 12:22:56 +00:00 · 2026-01-04 14:33:54 +01:00
parent 1a29315672
commit 37ffb93923
210 changed files with 29417 additions and 477 deletions
@@ -0,0 +1,169 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+import '../../bootstrap/env.dart';
+
+class ChatMessage {
+  final String content;
+  final String role;
+  final DateTime timestamp;
+
+  ChatMessage({
+    required this.content,
+    required this.role,
+    DateTime? timestamp,
+  }) : timestamp = timestamp ?? DateTime.now();
+
+  Map<String, dynamic> toJson() {
+    return {
+      'content': content,
+      'role': role,
+      'timestamp': timestamp.toIso8601String(),
+    };
+  }
+
+  factory ChatMessage.fromJson(Map<String, dynamic> json) {
+    return ChatMessage(
+      content: json['content'] as String,
+      role: json['role'] as String,
+      timestamp: DateTime.parse(json['timestamp'] as String),
+    );
+  }
+}
+
+class MistralAIException implements Exception {
+  final String message;
+  final int? statusCode;
+
+  MistralAIException(this.message, [this.statusCode]);
+
+  @override
+  String toString() => 'MistralAIException: $message${statusCode != null ? ' (Status: $statusCode)' : ''}';
+}
+
+class MistralAIService {
+  final String _apiKey;
+  final http.Client _client;
+
+  MistralAIService({
+    required String apiKey,
+    http.Client? client,
+  })  : _apiKey = apiKey,
+        _client = client ?? http.Client();
+
+  Future<String> chat({
+    required String message,
+    String model = Env.mistralChatModel,
+    List<ChatMessage>? conversationHistory,
+    String? userContext,
+  }) async {
+    try {
+      final messages = <Map<String, String>>[];
+      
+      // Add system prompt for LifeTimer context
+      messages.add({
+        'role': 'system',
+        'content': '''You are an AI assistant for LifeTimer, a gamified life countdown app where users create a bucket list and start a 1356-day countdown.
+Your role is to help users with:
+1. Goal setting and bucket list inspiration
+2. Motivation and encouragement
+3. Life advice and productivity tips
+4. Creative ideas for experiences
+Be inspiring, practical, and encouraging. Keep responses concise but meaningful.
+If user context is provided, use it to personalise your responses while respecting any stated privacy limitations.''',
+      });
+
+      // Add optional structured user context as a separate system message
+      if (userContext != null && userContext.trim().isNotEmpty) {
+        messages.add({
+          'role': 'system',
+          'content': 'Current user context for this conversation: ${userContext.trim()}',
+        });
+      }
+
+      // Add conversation history if provided
+      if (conversationHistory != null) {
+        final recentMessages = conversationHistory.length > 10 
+            ? conversationHistory.sublist(conversationHistory.length - 10)
+            : conversationHistory;
+        for (final msg in recentMessages) { // Keep last 10 messages for context
+          messages.add({
+            'role': msg.role,
+            'content': msg.content,
+          });
+        }
+      }
+
+      // Add current message
+      messages.add({
+        'role': 'user',
+        'content': message,
+      });
+
+      final uri = Uri.https('api.mistral.ai', '/v1/chat/completions');
+
+      final response = await _client.post(
+        uri,
+        headers: {
+          'Authorization': 'Bearer $_apiKey',
+          'Content-Type': 'application/json',
+        },
+        body: jsonEncode({
+          'model': model,
+          'messages': messages,
+          'max_tokens': 500,
+          'temperature': 0.7,
+        }),
+      );
+
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body) as Map<String, dynamic>;
+        final choices = data['choices'] as List;
+        final firstChoice = choices.first as Map<String, dynamic>;
+        final message = firstChoice['message'] as Map<String, dynamic>;
+        return message['content'] as String;
+      } else {
+        throw MistralAIException(
+          'Failed to get chat response',
+          response.statusCode,
+        );
+      }
+    } catch (e) {
+      if (e is MistralAIException) rethrow;
+      throw MistralAIException('Error in chat: $e');
+    }
+  }
+
+  Future<String> transcribeAudio({
+    required String audioFilePath,
+    String model = Env.mistralVoiceModel,
+  }) async {
+    try {
+      final uri = Uri.https('api.mistral.ai', '/v1/audio/transcriptions');
+
+      final request = http.MultipartRequest('POST', uri)
+        ..headers['Authorization'] = 'Bearer $_apiKey'
+        ..fields['model'] = model
+        ..files.add(await http.MultipartFile.fromPath('file', audioFilePath));
+
+      final response = await request.send();
+
+      if (response.statusCode == 200) {
+        final responseBody = await response.stream.bytesToString();
+        final data = jsonDecode(responseBody) as Map<String, dynamic>;
+        return data['text'] as String;
+      } else {
+        throw MistralAIException(
+          'Failed to transcribe audio',
+          response.statusCode,
+        );
+      }
+    } catch (e) {
+      if (e is MistralAIException) rethrow;
+      throw MistralAIException('Error in transcription: $e');
+    }
+  }
+
+  void dispose() {
+    _client.close();
+  }
+}