refactor(chat): 重构聊天模块并集成历史消息加载功能

- 删除冗余的 chat_history_repository 和 home_mock_data - 简化 ag_ui_event fromJson 使用工厂映射表 - 提取 ChatBloc 事件处理方法，添加 loadHistory/loadMoreHistory - HomeScreen 集成 ChatBloc 实现历史消息加载和下拉刷新 - 更新 AGENTS.md 文档约束
2026-03-02 15:05:10 +08:00
parent 6b32990986
commit e161ca22c4
16 changed files with 915 additions and 752 deletions
@@ -1,62 +0,0 @@
-import 'dart:convert';
-import 'package:shared_preferences/shared_preferences.dart';
-
-class ChatHistoryRepository {
-  static const String _messagesKey = 'chat_messages_';
-  static const String _lastRunIdKey = 'chat_last_run_id_';
-  static const String _calendarEventsKey = 'calendar_events';
-
-  final String threadId;
-
-  ChatHistoryRepository({this.threadId = 'default'});
-
-  String get _msgKey => '$_messagesKey$threadId';
-  String get _runIdKey => '$_lastRunIdKey$threadId';
-
-  Future<void> saveMessages(List<Map<String, dynamic>> messages) async {
-    final prefs = await SharedPreferences.getInstance();
-    await prefs.setString(_msgKey, jsonEncode(messages));
-  }
-
-  Future<List<Map<String, dynamic>>?> loadMessages() async {
-    final prefs = await SharedPreferences.getInstance();
-    final data = prefs.getString(_msgKey);
-    if (data == null) return null;
-    final list = jsonDecode(data) as List;
-    return list.cast<Map<String, dynamic>>();
-  }
-
-  Future<void> saveLastRunId(String runId) async {
-    final prefs = await SharedPreferences.getInstance();
-    await prefs.setString(_runIdKey, runId);
-  }
-
-  Future<String?> loadLastRunId() async {
-    final prefs = await SharedPreferences.getInstance();
-    return prefs.getString(_runIdKey);
-  }
-
-  Future<void> clear() async {
-    final prefs = await SharedPreferences.getInstance();
-    await prefs.remove(_msgKey);
-    await prefs.remove(_runIdKey);
-  }
-
-  Future<void> saveCalendarEvent(Map<String, dynamic> event) async {
-    final prefs = await SharedPreferences.getInstance();
-    final eventsJson = prefs.getString(_calendarEventsKey);
-    final events = eventsJson != null
-        ? jsonDecode(eventsJson) as Map<String, dynamic>
-        : <String, dynamic>{};
-    events[event['id']] = event;
-    await prefs.setString(_calendarEventsKey, jsonEncode(events));
-  }
-
-  Future<List<Map<String, dynamic>>> loadCalendarEvents() async {
-    final prefs = await SharedPreferences.getInstance();
-    final eventsJson = prefs.getString(_calendarEventsKey);
-    if (eventsJson == null) return [];
-    final events = jsonDecode(eventsJson) as Map<String, dynamic>;
-    return events.values.cast<Map<String, dynamic>>().toList();
-  }
-}