// Author: fruit.com.cn

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/data/models/feed_page.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';
import 'package:fruitshorts/core/theme/app_theme.dart';
import 'package:fruitshorts/l10n/app_localizations.dart';
import 'package:fruitshorts/pages/ranking/ranking_page.dart';
import 'package:provider/provider.dart';

void main() {
  testWidgets('should_render_rank_badges_on_covers_for_all_entries', (
    tester,
  ) async {
    await _pumpPage(tester, [
      _drama('a', viewCount: 400),
      _drama('b', viewCount: 300),
      _drama('c', viewCount: 200),
      _drama('d', viewCount: 100),
    ]);

    expect(find.byKey(const Key('ranking-top-1')), findsOneWidget);
    expect(find.byKey(const Key('ranking-top-2')), findsOneWidget);
    expect(find.byKey(const Key('ranking-top-3')), findsOneWidget);
    expect(find.byKey(const Key('ranking-top-4')), findsOneWidget);
    expect(find.byKey(const Key('ranking-row-cover-1')), findsOneWidget);
    expect(find.byKey(const Key('ranking-title-1')), findsOneWidget);
  });

  testWidgets('should_hide_optional_fields_when_drama_has_no_data', (
    tester,
  ) async {
    await _pumpPage(tester, [_drama('solo')]);

    expect(find.byKey(const Key('ranking-tag-1')), findsNothing);
    expect(find.byIcon(Icons.local_fire_department_rounded), findsNothing);
  });

  testWidgets('should_show_optional_fields_when_present', (tester) async {
    await _pumpPage(tester, [
      _drama(
        'rich',
        viewCount: 15340000,
        likeCount: 550,
        tag: '新剧',
        genre: '剧情',
        synopsis: '以拟人化视角，重温长征岁月。',
      ),
    ]);

    expect(find.byKey(const Key('ranking-tag-1')), findsOneWidget);
    expect(find.text('新剧'), findsOneWidget);
    expect(find.text('剧情'), findsOneWidget);
    expect(find.text('以拟人化视角，重温长征岁月。'), findsOneWidget);
    expect(find.text('1534w heat · 550 likes'), findsOneWidget);
    final synopsis = tester.widget<Text>(find.text('以拟人化视角，重温长征岁月。'));
    expect(synopsis.maxLines, 3);
    expect(synopsis.overflow, TextOverflow.ellipsis);
    final tag = tester.widget<Text>(find.byKey(const Key('ranking-tag-1')));
    expect(tag.style?.color, isNotNull);
    final synopsisRect = tester.getRect(find.text('以拟人化视角，重温长征岁月。'));
    final tagRect = tester.getRect(find.byKey(const Key('ranking-tag-1')));
    expect(tagRect.top - synopsisRect.bottom, lessThan(8));
  });
}

Future<void> _pumpPage(WidgetTester tester, List<Drama> dramas) async {
  final controller = CatalogController(_EmptyCatalogRepository());
  controller.feed = HomeFeed(
    sections: [FeedSection(code: 'hot', title: 'Hot', dramas: dramas)],
  );
  await tester.pumpWidget(
    ChangeNotifierProvider.value(
      value: controller,
      child: MaterialApp(
        theme: AppTheme.dark(),
        localizationsDelegates: AppLocalizations.localizationsDelegates,
        supportedLocales: AppLocalizations.supportedLocales,
        home: const RankingPage(),
      ),
    ),
  );
  await tester.pumpAndSettle();
}

Drama _drama(
  String id, {
  int viewCount = 0,
  int? likeCount,
  String tag = '',
  String genre = '',
  String synopsis = '',
}) => Drama(
  id: id,
  title: 'Drama $id',
  synopsis: synopsis,
  posterUrl: '',
  tag: tag,
  genre: genre,
  viewCount: viewCount,
  likeCount: likeCount,
);

class _EmptyCatalogRepository implements CatalogRepository {
  @override
  Future<HomeFeed> fetchHomeFeed() async => const HomeFeed();

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

  @override
  Future<FeedPage> fetchFeed({
    List<String> types = const [],
    String? categoryId,
    String? cursor,
    int size = 10,
  }) async => const FeedPage();

  @override
  Future<Drama> fetchDrama(String dramaId) async =>
      Drama(id: dramaId, title: '', synopsis: '', posterUrl: '');
}