import 'package:flutter_bloc/flutter_bloc.dart';
import '../../../data/data_sources/remote/geviserver_remote_data_source.dart';
import 'geviserver_event.dart';
import 'geviserver_state.dart';

class GeViServerBloc extends Bloc<GeViServerEvent, GeViServerState> {
  final GeViServerRemoteDataSource remoteDataSource;

  GeViServerBloc({required this.remoteDataSource})
      : super(const GeViServerState()) {
    on<ConnectGeViServerEvent>(_onConnect);
    on<DisconnectGeViServerEvent>(_onDisconnect);
    on<CheckStatusEvent>(_onCheckStatus);
    on<SendCrossSwitchEvent>(_onSendCrossSwitch);
    on<ClearVideoOutputEvent>(_onClearVideoOutput);
    on<CloseContactEvent>(_onCloseContact);
    on<OpenContactEvent>(_onOpenContact);
    on<SendCustomActionEvent>(_onSendCustomAction);
    on<SendMessageEvent>(_onSendMessage);
    on<StartTimerEvent>(_onStartTimer);
    on<StopTimerEvent>(_onStopTimer);
    on<ClearActionResultEvent>(_onClearActionResult);
  }

  Future<void> _onConnect(
    ConnectGeViServerEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(
      connectionStatus: ConnectionStatus.connecting,
      isLoading: true,
      clearErrorMessage: true,
    ));

    try {
      final result = await remoteDataSource.connect(
        address: event.address,
        username: event.username,
        password: event.password,
      );

      if (result['success'] == true) {
        emit(state.copyWith(
          connectionStatus: ConnectionStatus.connected,
          serverAddress: event.address,
          username: event.username,
          connectedAt: DateTime.now(),
          isLoading: false,
          lastActionResult: 'Connected to ${event.address}',
          lastActionSuccess: true,
        ));
      } else {
        emit(state.copyWith(
          connectionStatus: ConnectionStatus.error,
          isLoading: false,
          errorMessage: result['message'] ?? 'Connection failed',
          lastActionResult: result['message'] ?? 'Connection failed',
          lastActionSuccess: false,
        ));
      }
    } catch (e) {
      emit(state.copyWith(
        connectionStatus: ConnectionStatus.error,
        isLoading: false,
        errorMessage: e.toString(),
        lastActionResult: 'Connection error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onDisconnect(
    DisconnectGeViServerEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      await remoteDataSource.disconnect();
      emit(state.copyWith(
        connectionStatus: ConnectionStatus.disconnected,
        isLoading: false,
        clearServerAddress: true,
        clearUsername: true,
        clearConnectedAt: true,
        lastActionResult: 'Disconnected',
        lastActionSuccess: true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        errorMessage: e.toString(),
        lastActionResult: 'Disconnect error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onCheckStatus(
    CheckStatusEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    try {
      final result = await remoteDataSource.getStatus();
      final isConnected = result['is_connected'] == true;

      emit(state.copyWith(
        connectionStatus: isConnected
            ? ConnectionStatus.connected
            : ConnectionStatus.disconnected,
        serverAddress: result['address']?.toString(),
        username: result['username']?.toString(),
      ));
    } catch (e) {
      emit(state.copyWith(
        connectionStatus: ConnectionStatus.error,
        errorMessage: e.toString(),
      ));
    }
  }

  Future<void> _onSendCrossSwitch(
    SendCrossSwitchEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.crossSwitch(
        videoInput: event.videoInput,
        videoOutput: event.videoOutput,
        switchMode: event.switchMode,
      );

      final message = 'CrossSwitch(${event.videoInput}, ${event.videoOutput}, ${event.switchMode})';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'CrossSwitch sent successfully'
            : result['message'] ?? 'CrossSwitch failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'CrossSwitch error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onClearVideoOutput(
    ClearVideoOutputEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.clearOutput(
        videoOutput: event.videoOutput,
      );

      final message = 'ClearVideoOutput(${event.videoOutput})';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'ClearOutput sent successfully'
            : result['message'] ?? 'ClearOutput failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'ClearOutput error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onCloseContact(
    CloseContactEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.closeContact(
        contactId: event.contactId,
      );

      final message = 'CloseContact(${event.contactId})';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'CloseContact sent successfully'
            : result['message'] ?? 'CloseContact failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'CloseContact error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onOpenContact(
    OpenContactEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.openContact(
        contactId: event.contactId,
      );

      final message = 'OpenContact(${event.contactId})';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'OpenContact sent successfully'
            : result['message'] ?? 'OpenContact failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'OpenContact error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onSendCustomAction(
    SendCustomActionEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.sendCustomAction(
        typeId: event.typeId,
        text: event.text,
      );

      final message = 'CustomAction(${event.typeId}, "${event.text}")';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'CustomAction sent successfully'
            : result['message'] ?? 'CustomAction failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'CustomAction error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onSendMessage(
    SendMessageEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.sendMessage(event.message);

      _addToLog(emit, event.message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'Message sent successfully'
            : result['message'] ?? 'Send message failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'Send message error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onStartTimer(
    StartTimerEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.startTimer(
        timerId: event.timerId,
        timerName: event.timerName,
      );

      final message = 'StartTimer(${event.timerId}, "${event.timerName}")';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'StartTimer sent successfully'
            : result['message'] ?? 'StartTimer failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'StartTimer error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  Future<void> _onStopTimer(
    StopTimerEvent event,
    Emitter<GeViServerState> emit,
  ) async {
    emit(state.copyWith(isLoading: true));

    try {
      final result = await remoteDataSource.stopTimer(
        timerId: event.timerId,
        timerName: event.timerName,
      );

      final message = 'StopTimer(${event.timerId}, "${event.timerName}")';
      _addToLog(emit, message);

      emit(state.copyWith(
        isLoading: false,
        lastActionResult: result['success'] == true
            ? 'StopTimer sent successfully'
            : result['message'] ?? 'StopTimer failed',
        lastActionSuccess: result['success'] == true,
      ));
    } catch (e) {
      emit(state.copyWith(
        isLoading: false,
        lastActionResult: 'StopTimer error: $e',
        lastActionSuccess: false,
      ));
    }
  }

  void _onClearActionResult(
    ClearActionResultEvent event,
    Emitter<GeViServerState> emit,
  ) {
    emit(state.copyWith(clearLastActionResult: true, clearErrorMessage: true));
  }

  void _addToLog(Emitter<GeViServerState> emit, String message) {
    final timestamp = DateTime.now().toIso8601String().substring(11, 19);
    final logEntry = '[$timestamp] $message';
    final newLog = [...state.messageLog, logEntry];
    // Keep only last 100 messages
    if (newLog.length > 100) {
      newLog.removeRange(0, newLog.length - 100);
    }
    emit(state.copyWith(messageLog: newLog));
  }
}