daiyongkang
76f266645d
含 Phase 1.1 IM seq 排序、断线重连、多端已读同步与微信式语音转文字 UI。 排除 node_modules、构建产物、安装包与 .env 密钥。 Co-authored-by: Cursor <cursoragent@cursor.com>
33 lines
1.1 KiB
Dart
33 lines
1.1 KiB
Dart
import 'dart:convert';
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import 'package:shared_preferences/shared_preferences.dart';
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/// 聊天消息的本地副本。云端只保留 7 天，客户端仍可查看本机历史消息。
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class ChatLocalStore {
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ChatLocalStore._();
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static Future<List<Map<String, dynamic>>> load(String conversationId) async {
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if (conversationId.isEmpty) return [];
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final p = await SharedPreferences.getInstance();
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final raw = p.getString('im.local.$conversationId');
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if (raw == null || raw.isEmpty) return [];
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try {
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final list = jsonDecode(raw);
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if (list is! List) return [];
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return list.whereType<Map>().map((e) => Map<String, dynamic>.from(e)).toList();
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} catch (_) {
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return [];
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}
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}
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static Future<void> save(String conversationId, List<Map<String, dynamic>> items) async {
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if (conversationId.isEmpty) return;
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final p = await SharedPreferences.getInstance();
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final durable = items.where((e) => e['_pending'] != true).map((e) {
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final copy = Map<String, dynamic>.from(e)..remove('_pending');
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return copy;
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}).toList();
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await p.setString('im.local.$conversationId', jsonEncode(durable));
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}
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}
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