// Author: fruit.com.cn

import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/data/models/home_feed.dart';
import 'package:fruitshorts/core/data/repositories/catalog_repository.dart';
import 'package:fruitshorts/core/data/services/catalog_controller.dart';

void main() {
  test('should_keep_state_when_silent_refresh_fails', () async {
    final repository = _FakeCatalog(fail: true);
    final controller = CatalogController(repository);
    const oldFeed = HomeFeed();
    controller.feed = oldFeed;

    final ok = await controller.refresh();

    expect(ok, isFalse);
    expect(controller.feed, same(oldFeed));
    expect(controller.loading, isFalse);
    expect(controller.error, isNull);
  });

  test(
    'should_replace_feed_without_touching_loading_when_refresh_succeeds',
    () async {
      final repository = _FakeCatalog();
      final controller = CatalogController(repository);
      controller.feed = const HomeFeed();
      final next = HomeFeed(
        sections: [
          FeedSection(code: 'new', title: 'New', dramas: const [_drama]),
        ],
      );
      repository.next = next;

      final ok = await controller.refresh();

      expect(ok, isTrue);
      expect(controller.feed, same(next));
      expect(controller.loading, isFalse);
      expect(controller.error, isNull);
    },
  );
}

class _FakeCatalog implements CatalogRepository {
  _FakeCatalog({this.fail = false});

  bool fail;
  HomeFeed next = const HomeFeed();

  @override
  Future<HomeFeed> fetchHomeFeed() async {
    if (fail) throw StateError('offline');
    return next;
  }

  @override
  Future<HomeFeed> fetchDiscoverFeed() async => const HomeFeed();

  @override
  Future<Drama> fetchDrama(String dramaId) async => _drama;
}

const _drama = Drama(
  id: 'refresh-drama',
  title: 'Refresh Drama',
  synopsis: 'synopsis',
  posterUrl: '',
  detailLoaded: true,
);