import 'package:equatable/equatable.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:tunas/repositories/metadata/models/budget.dart';
import 'package:tunas/repositories/metadata/metadata_repository.dart';

part 'budget_event.dart';
part 'budget_state.dart';

class BudgetBloc extends Bloc<BudgetEvent, BudgetState> {
  final MetadataRepository _metadataRepository;

  BudgetBloc({required MetadataRepository metadataRepository}) : _metadataRepository = metadataRepository, super(const BudgetState())  {
    on<BudgetsLoad>(_onBudgetsLoad);

    _metadataRepository
      .getBudgetsStream()
      .listen((budgets) => add(BudgetsLoad(budgets)));
  }

  _onBudgetsLoad(
    BudgetsLoad event, Emitter<BudgetState> emit
  ) {
    emit(state.copyWith(
      budgets: event.budgets,
    ));
  }
}