import 'package:flutter_bloc/flutter_bloc.dart';

import '../../../../core/resources/data_state.dart';
import '../../../../core/usecase/use_case.dart';
import '../../domain/use_cases/get_profile_usecase.dart';
import '../../domain/use_cases/save_profile_usecase.dart';
import 'profile_event.dart';
import 'profile_state.dart';
import 'profile_status.dart';

class ProfileBloc extends Bloc<ProfileEvent, ProfileBlocState> {
  final GetProfileUseCase getProfileUseCase;
  final SaveProfileUseCase saveProfileUseCase;

  ProfileBloc(this.getProfileUseCase, this.saveProfileUseCase)
      : super(ProfileBlocState.initial()) {
    on<LoadProfileEvent>((event, emit) => _load(emit));

    on<SaveProfileEvent>((event, emit) async {
      emit(state.copyWith(saveStatus: ProfileSaveLoading()));
      final res = await saveProfileUseCase(
          ProfileParams(event.firstName, event.avatar));
      if (res is DataSuccess) {
        emit(state.copyWith(saveStatus: ProfileSaveSuccess()));
        await _load(emit);
      } else {
        emit(state.copyWith(saveStatus: ProfileSaveError(res.error!)));
      }
    });
  }

  Future<void> _load(Emitter<ProfileBlocState> emit) async {
    emit(state.copyWith(loadStatus: ProfileLoadLoading()));
    final res = await getProfileUseCase(const NoParams());
    if (res is DataSuccess) {
      emit(state.copyWith(loadStatus: ProfileLoadLoaded(res.data!)));
    } else {
      emit(state.copyWith(loadStatus: ProfileLoadError(res.error!)));
    }
  }
}