import 'package:flutter_bloc/flutter_bloc.dart';

import '../../../core/api/api_exception.dart';
import '../data/rating_repository.dart';
import 'rating_state.dart';

class RatingCubit extends Cubit<RatingState> {
  RatingCubit(this._repo) : super(const RatingState());

  final RatingRepository _repo;

  void attach(PendingRating pending) => emit(RatingState(pending: pending));

  void setStars(int stars) => emit(state.copyWith(stars: stars));

  void setComment(String comment) => emit(state.copyWith(comment: comment));

  Future<void> submit() async {
    final pending = state.pending;
    if (pending == null || !state.canSubmit) return;

    emit(state.copyWith(status: RatingStatus.submitting));
    try {
      await _repo.rate(
        pending.tripId,
        state.stars,
        comment: state.comment.trim().isEmpty ? null : state.comment.trim(),
      );
      emit(state.copyWith(status: RatingStatus.done));
    } on ApiException catch (e) {
      // 400 هنا = تقييم مزدوج، وهو نجاحٌ من منظور المستخدم: الرحلة مُقيَّمة
      // فعلاً، فلا يُحبس في شاشة لا مخرج منها.
      emit(state.copyWith(
        status: e.statusCode == 400
            ? RatingStatus.alreadyRated
            : RatingStatus.failed,
      ));
    }
  }
}