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Merge pull request #54 from mylxsw/feature/group-chat
Feature/group chat
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,197 @@ | ||
| import 'dart:convert'; | ||
|
|
||
| import 'package:askaide/helper/cache.dart'; | ||
| import 'package:askaide/helper/logger.dart'; | ||
| import 'package:askaide/page/component/chat/message_state_manager.dart'; | ||
| import 'package:askaide/repo/api_server.dart'; | ||
| import 'package:askaide/repo/model/group.dart'; | ||
| import 'package:askaide/repo/model/message.dart'; | ||
| import 'package:bloc/bloc.dart'; | ||
| import 'package:meta/meta.dart'; | ||
|
|
||
| part 'group_chat_event.dart'; | ||
| part 'group_chat_state.dart'; | ||
|
|
||
| class GroupChatBloc extends Bloc<GroupChatEvent, GroupChatState> { | ||
| var messages = <GroupMessage>[]; | ||
| final MessageStateManager stateManager; | ||
|
|
||
| GroupChatBloc({required this.stateManager}) : super(GroupChatInitial()) { | ||
| // 加载聊天组 | ||
| on<GroupChatLoadEvent>((event, emit) async { | ||
| final group = | ||
| await APIServer().chatGroup(event.groupId, cache: !event.forceUpdate); | ||
| final states = await stateManager.loadRoomStates(event.groupId); | ||
|
|
||
| emit(GroupChatLoaded( | ||
| group: group, | ||
| states: states, | ||
| defaultChatMembers: await loadDefaultChatMembers(event.groupId), | ||
| )); | ||
| }); | ||
|
|
||
| // 加载聊天组聊天记录 | ||
| on<GroupChatMessagesLoadEvent>((event, emit) async { | ||
| if (event.isInitRequest) { | ||
| try { | ||
| final cached = | ||
| await Cache().stringGet(key: 'group:speed:${event.groupId}'); | ||
| if (cached != null) { | ||
| final messages = (jsonDecode(cached) as List<dynamic>) | ||
| .map((e) => GroupMessage.fromJson(e)) | ||
| .toList(); | ||
|
|
||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| } | ||
| } catch (e) { | ||
| Logger.instance.e(e); | ||
| } | ||
| } | ||
|
|
||
| await refreshGroupMessages( | ||
| event.groupId, | ||
| startId: event.startId, | ||
| forceRefresh: true, | ||
| ); | ||
|
|
||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| }); | ||
|
|
||
| // 发送聊天组消息 | ||
| on<GroupChatSendEvent>((event, emit) async { | ||
| try { | ||
| final resp = await APIServer().chatGroupSendMessage( | ||
| event.groupId, | ||
| GroupChatSendRequest( | ||
| message: event.message, | ||
| memberIds: event.members, | ||
| ), | ||
| ); | ||
|
|
||
| Logger.instance.d(resp.toJson()); | ||
|
|
||
| // 记录默认聊天成员 | ||
| updateDefaultChatMembers( | ||
| event.groupId, | ||
| resp.tasks.map((e) => e.memberId).toList(), | ||
| ).then((members) { | ||
| emit(GroupDefaultMemberSelected(members)); | ||
| }); | ||
|
|
||
| await refreshGroupMessages( | ||
| event.groupId, | ||
| startId: 0, | ||
| forceRefresh: true, | ||
| ); | ||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| } catch (e) { | ||
| await refreshGroupMessages( | ||
| event.groupId, | ||
| startId: 0, | ||
| forceRefresh: true, | ||
| ); | ||
| emit(GroupChatMessagesLoaded(messages: messages, error: e)); | ||
| } | ||
| }); | ||
|
|
||
| // 发送系统消息 | ||
| on<GroupChatSendSystemEvent>((event, emit) async { | ||
| try { | ||
| final resp = await APIServer().chatGroupSendSystemMessage( | ||
| event.groupId, | ||
| messageType: event.type.getTypeText(), | ||
| message: event.message, | ||
| ); | ||
|
|
||
| Logger.instance.d(resp.toJson()); | ||
| } finally { | ||
| await refreshGroupMessages( | ||
| event.groupId, | ||
| startId: 0, | ||
| forceRefresh: true, | ||
| ); | ||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| } | ||
| }); | ||
|
|
||
| // 更新聊天组消息状态 | ||
| on<GroupChatUpdateMessageStatusEvent>((event, emit) async { | ||
| final waitMessageIds = messages | ||
| .where((msg) => msg.status == groupMessageStatusWaiting) | ||
| .map((msg) => msg.id) | ||
| .toList(); | ||
|
|
||
| if (waitMessageIds.isEmpty) { | ||
| return; | ||
| } | ||
|
|
||
| final resp = await APIServer() | ||
| .chatGroupMessageStatus(event.groupId, waitMessageIds); | ||
| final newMessageStatusMap = <int, GroupMessage>{}; | ||
| for (var msg in resp) { | ||
| newMessageStatusMap[msg.id] = msg; | ||
| } | ||
|
|
||
| for (var i = 0; i < messages.length; i++) { | ||
| final msg = messages[i]; | ||
| if (newMessageStatusMap.containsKey(msg.id)) { | ||
| messages[i] = newMessageStatusMap[msg.id]!; | ||
| } | ||
| } | ||
|
|
||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| }); | ||
|
|
||
| // 清空聊天组消息 | ||
| on<GroupChatDeleteAllEvent>((event, emit) async { | ||
| await APIServer().chatGroupDeleteAllMessages(event.groupId); | ||
| messages.clear(); | ||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| }); | ||
|
|
||
| // 删除聊天组消息 | ||
| on<GroupChatDeleteEvent>((event, emit) async { | ||
| await APIServer().chatGroupDeleteMessage(event.groupId, event.messageId); | ||
| messages.removeWhere((msg) => msg.id == event.messageId); | ||
| emit(GroupChatMessagesLoaded(messages: messages)); | ||
| }); | ||
| } | ||
|
|
||
| refreshGroupMessages( | ||
| int groupId, { | ||
| int startId = 0, | ||
| bool forceRefresh = false, | ||
| }) async { | ||
| final data = await APIServer() | ||
| .chatGroupMessages(groupId, startId: startId, cache: !forceRefresh); | ||
| messages = data.data.reversed.toList(); | ||
|
|
||
| if (startId == 0) { | ||
| Cache() | ||
| .setString(key: 'group:speed:$groupId', value: jsonEncode(messages)); | ||
| } | ||
| } | ||
|
|
||
| Future<List<int>> loadDefaultChatMembers(int groupId) async { | ||
| final defaultMembers = | ||
| await Cache().stringGet(key: 'group:$groupId:default-members'); | ||
|
|
||
| return (defaultMembers ?? '') | ||
| .split(',') | ||
| .map((e) => int.tryParse(e) ?? 0) | ||
| .where((e) => e > 0) | ||
| .toList(); | ||
| } | ||
|
|
||
| Future<List<int>> updateDefaultChatMembers( | ||
| int groupId, List<int> members) async { | ||
| // 记录默认聊天成员 | ||
| await Cache().setString( | ||
| key: 'group:$groupId:default-members', | ||
| value: members.join(','), | ||
| duration: const Duration(days: 365), | ||
| ); | ||
|
|
||
| return members; | ||
| } | ||
| } |
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