84 lines
2.3 KiB
Dart
84 lines
2.3 KiB
Dart
import '../../../../../api/marianumcloud/talk/chat/getChatResponse.dart';
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import '../../../infrastructure/loadableState/loading_error.dart';
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import '../../../infrastructure/utilityWidgets/loadableHydratedBloc/loadable_hydrated_bloc.dart';
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import '../../../infrastructure/utilityWidgets/loadableHydratedBloc/loadable_hydrated_bloc_event.dart';
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import '../repository/chat_repository.dart';
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import 'chat_event.dart';
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import 'chat_state.dart';
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class ChatBloc extends LoadableHydratedBloc<ChatEvent, ChatState, ChatRepository> {
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DateTime _lastTokenSet = DateTime.fromMillisecondsSinceEpoch(0);
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@override
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ChatRepository repository() => ChatRepository();
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@override
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ChatState fromNothing() => const ChatState();
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@override
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ChatState fromStorage(Map<String, dynamic> json) => ChatState.fromJson(json);
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@override
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Map<String, dynamic>? toStorage(ChatState state) => state.toJson();
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@override
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Future<void> gatherData() async {
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final token = innerState?.currentToken ?? '';
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if (token.isEmpty) {
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add(DataGathered((s) => s));
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return;
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}
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await _loadChat(token);
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}
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void setToken(String token) {
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if (token == (innerState?.currentToken ?? '')) {
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refresh();
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return;
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}
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add(Emit((s) => s.copyWith(currentToken: token, chatResponse: null)));
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add(RefetchStarted<ChatState>());
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_loadChat(token);
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}
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void setReferenceMessageId(int? messageId) {
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add(Emit((s) => s.copyWith(referenceMessageId: messageId)));
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}
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void refresh() {
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final token = innerState?.currentToken ?? '';
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if (token.isEmpty) return;
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add(RefetchStarted<ChatState>());
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_loadChat(token);
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}
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Future<void> _loadChat(String token) async {
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final requestStart = DateTime.now();
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_lastTokenSet = requestStart;
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Object? capturedError;
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GetChatResponse? response;
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try {
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response = await repo.data.getChat(
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token: token,
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onError: (e) => capturedError = e,
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);
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} catch (e) {
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capturedError = e;
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}
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if (_lastTokenSet.isAfter(requestStart)) return;
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if ((innerState?.currentToken ?? '') != token) return;
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if (response != null) {
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add(DataGathered((s) => s.copyWith(chatResponse: response)));
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}
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if (capturedError != null) {
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add(Error(LoadingError(
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message: capturedError.toString(),
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allowRetry: true,
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)));
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}
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}
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}
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