// Author: fruit.com.cn

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/data/models/comment.dart';
import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/data/models/interaction.dart';
import 'package:fruitshorts/core/data/remote/api_client.dart';
import 'package:fruitshorts/core/data/remote/auth_api.dart';
import 'package:fruitshorts/core/data/repositories/comment_repository.dart';
import 'package:fruitshorts/core/data/repositories/interaction_repository.dart';
import 'package:fruitshorts/core/data/services/auth_controller.dart';
import 'package:fruitshorts/core/data/services/auth_session_store.dart';
import 'package:fruitshorts/l10n/app_localizations.dart';
import 'package:fruitshorts/pages/player/widgets/drama_comments_sheet.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';

import '../support/fake_http_adapter.dart';
import '../support/fake_interaction_repositories.dart';

const _drama = Drama(
  id: '5',
  title: 'The Signal',
  synopsis: 'synopsis',
  posterUrl: '/files/5.jpg',
);

void main() {
  setUp(() {
    SharedPreferencesAsyncPlatform.instance =
        InMemorySharedPreferencesAsync.withData({
          'auth.accessToken': 'test-access',
          'auth.refreshToken': 'test-refresh',
          'auth.user': '{"uid":"9","nickname":"Me","avatarUrl":""}',
        });
  });

  testWidgets('should_show_server_comments_and_append_next_cursor_page', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [
            commentFixture(id: '10', content: 'Great episode', replyCount: 1),
          ],
          nextCursor: '10',
          hasMore: true,
        ),
        CommentPage(
          comments: [commentFixture(id: '9', content: 'Second page')],
        ),
      ],
    );

    await _pumpSheet(tester, repository: repository);
    expect(find.text('Great episode'), findsOneWidget);
    expect(find.byKey(const Key('comment-list-load-more')), findsOneWidget);

    await tester.tap(find.byKey(const Key('comment-list-load-more')));
    await tester.pumpAndSettle();

    expect(find.text('Second page'), findsOneWidget);
    expect(repository.pageCalls.last.cursor, '10');
  });

  testWidgets('should_keep_input_and_show_backend_message_when_comment_is_blocked', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [const CommentPage()],
      publishError: const ApiException(400, '评论包含敏感词'),
    );

    await _pumpSheet(tester, repository: repository);
    await tester.enterText(
      find.byKey(const Key('comment-input')),
      'blocked text',
    );
    await tester.tap(find.byKey(const Key('comment-post')));
    await tester.pumpAndSettle();

    expect(find.text('评论包含敏感词'), findsOneWidget);
    final field = tester.widget<TextField>(
      find.byKey(const Key('comment-input')),
    );
    expect(field.controller?.text, 'blocked text');
  });

  testWidgets('should_show_review_badge_and_server_replaced_content', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [const CommentPage()],
      publishResult: commentFixture(
        id: '11',
        content: 'hello ***',
        status: 'pending',
        mine: true,
      ),
    );

    await _pumpSheet(tester, repository: repository);
    await tester.enterText(
      find.byKey(const Key('comment-input')),
      'hello badword',
    );
    await tester.tap(find.byKey(const Key('comment-post')));
    await tester.pumpAndSettle();

    expect(find.text('hello ***'), findsOneWidget);
    expect(find.text('Under review'), findsOneWidget);
    final field = tester.widget<TextField>(
      find.byKey(const Key('comment-input')),
    );
    expect(field.controller?.text, isEmpty);
  });

  testWidgets('should_send_parent_id_when_replying_to_top_level_comment', (
    tester,
  ) async {
    final root = commentFixture(id: '10', content: 'Root', replyCount: 0);
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(comments: [root]),
      ],
      publishResult: commentFixture(
        id: '11',
        parentId: '10',
        rootId: '10',
        content: 'My reply',
        mine: true,
      ),
    );

    await _pumpSheet(tester, repository: repository);
    await tester.tap(find.byKey(const Key('comment-reply-10')));
    await tester.pump();
    expect(find.textContaining('Replying to'), findsOneWidget);
    await tester.enterText(
      find.byKey(const Key('comment-input')),
      'My reply',
    );
    await tester.tap(find.byKey(const Key('comment-post')));
    await tester.pumpAndSettle();

    expect(repository.publishCalls.single.parentId, '10');
    expect(find.text('My reply'), findsOneWidget);
  });

  testWidgets('should_show_error_and_retry_when_comment_page_fails', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pageError: StateError('offline'),
    );

    await _pumpSheet(tester, repository: repository);

    expect(find.byKey(const Key('comment-list-error')), findsOneWidget);
    expect(find.byKey(const Key('comment-list-retry')), findsOneWidget);
  });

  testWidgets('should_update_comment_like_count_when_server_returns_count', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [commentFixture(id: '10', content: 'Like me')],
        ),
      ],
    );
    final interactions = FakeInteractionRepository()
      ..nextLikeResult = const LikeToggleResult(liked: true, count: 7);

    await _pumpSheet(
      tester,
      repository: repository,
      interactions: interactions,
    );
    await tester.tap(find.byKey(const Key('comment-like-10')));
    await tester.pumpAndSettle();

    expect(interactions.likeTargets, ['COMMENT:10']);
    expect(find.text('7'), findsOneWidget);
  });

  testWidgets('should_report_comment_and_show_success_when_submitted', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [commentFixture(id: '10', content: 'Report me')],
        ),
      ],
    );
    final interactions = FakeInteractionRepository();

    await _pumpSheet(
      tester,
      repository: repository,
      interactions: interactions,
    );
    await tester.tap(find.byKey(const Key('comment-menu-10')));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Report comment'));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('report-submit')));
    await tester.pumpAndSettle();

    expect(interactions.reports.single.targetType, InteractionTargetType.comment);
    expect(interactions.reports.single.targetId, '10');
    expect(interactions.reports.single.reasonCode, 'SPAM');
    expect(find.text('Report submitted. Thank you.'), findsOneWidget);
  });

  testWidgets('should_show_backend_message_when_comment_report_is_duplicated', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [commentFixture(id: '10', content: 'Report me')],
        ),
      ],
    );
    final interactions = FakeInteractionRepository()
      ..reportError = const ApiException(200003, '你已举报过该内容，我们正在处理');

    await _pumpSheet(
      tester,
      repository: repository,
      interactions: interactions,
    );
    await tester.tap(find.byKey(const Key('comment-menu-10')));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Report comment'));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('report-submit')));
    await tester.pumpAndSettle();

    expect(find.text('你已举报过该内容，我们正在处理'), findsOneWidget);
  });

  testWidgets('should_open_auth_gate_without_reporting_when_signed_out', (
    tester,
  ) async {
    SharedPreferencesAsyncPlatform.instance =
        InMemorySharedPreferencesAsync.empty();
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [commentFixture(id: '10', content: 'Report me')],
        ),
      ],
    );
    final interactions = FakeInteractionRepository();

    await _pumpSheet(
      tester,
      repository: repository,
      interactions: interactions,
    );
    await tester.tap(find.byKey(const Key('comment-menu-10')));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Report comment'));
    await tester.pumpAndSettle();

    expect(find.text('Sign in to continue'), findsOneWidget);
    expect(interactions.reports, isEmpty);
  });

  testWidgets('should_show_backend_message_when_reporting_own_comment', (
    tester,
  ) async {
    final repository = FakeCommentRepository(
      pages: [
        CommentPage(
          comments: [
            commentFixture(
              id: '10',
              content: 'My comment',
              mine: true,
            ),
          ],
        ),
      ],
    );
    final interactions = FakeInteractionRepository()
      ..reportError = const ApiException(400, '不能举报自己发布的内容');

    await _pumpSheet(
      tester,
      repository: repository,
      interactions: interactions,
    );
    await tester.tap(find.byKey(const Key('comment-menu-10')));
    await tester.pumpAndSettle();
    expect(find.text('Delete comment'), findsOneWidget);
    expect(find.text('Report comment'), findsOneWidget);
    await tester.tap(find.text('Report comment'));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('report-submit')));
    await tester.pumpAndSettle();

    expect(find.text('不能举报自己发布的内容'), findsOneWidget);
  });
}

Future<void> _pumpSheet(
  WidgetTester tester, {
  required FakeCommentRepository repository,
  FakeInteractionRepository? interactions,
}) async {
  final auth = await _auth();
  await tester.pumpWidget(
    MultiProvider(
      providers: [
        Provider<CommentRepository>.value(value: repository),
        Provider<InteractionRepository>.value(
          value: interactions ?? FakeInteractionRepository(),
        ),
        ChangeNotifierProvider<AuthController>.value(value: auth),
      ],
      child: MaterialApp(
        locale: const Locale('en'),
        localizationsDelegates: AppLocalizations.localizationsDelegates,
        supportedLocales: AppLocalizations.supportedLocales,
        home: const Scaffold(
          backgroundColor: Color(0xFF232328),
          body: DramaCommentsSheet(drama: _drama),
        ),
      ),
    ),
  );
  await tester.pumpAndSettle();
}

Future<AuthController> _auth() async {
  final client = ApiClient(
    baseUrl: 'http://127.0.0.1:8081',
    adapter: FakeHttpAdapter(
      (_) async => FakeHttpResponse('{"code":0,"message":"ok","data":null}'),
    ),
  );
  final auth = AuthController(AuthApi(client), AuthSessionStore());
  await auth.load();
  return auth;
}