import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:patbond_flutter/app/app.dart';
import 'package:patbond_flutter/core/widgets/post_card.dart';
import 'package:patbond_flutter/features/auth/session_manager.dart';
import 'package:patbond_flutter/features/community/community_models.dart';
import 'package:patbond_flutter/features/community/media_uploader.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../../helpers/auth_test_helpers.dart';
import '../../helpers/community_test_helpers.dart';
import '../../helpers/media_test_helpers.dart';
import '../../helpers/pet_test_helpers.dart';

/// 主壳发布闭环（T3-17）：创作 Tab 入口 → 发布页 → 发布成功 →
/// 回首页 Feed 并整体刷新 → 新帖置顶可见（M3 验收「发布后可见」的
/// 客户端侧断言；跨客户端可见性走 compose 真链路实测，见 26 号报告 §5）。
void main() {
  testWidgets('创作 Tab「发布动态」→ 发布 → 回首页 Feed 刷新，新帖置顶', (tester) async {
    SharedPreferences.setMockInitialValues({});
    final session = SessionManager(store: InMemoryTokenStore())
      ..markAuthenticated();
    final repository = FakeCommunityRepository();

    var published = false;
    repository.onFeed = (_, _) async => feedPage(
      published
          ? [
              FeedCard.fromJson({
                ...sampleFeedCardJson(id: 'p-new'),
                'contentPreview': '刚发布的动态',
              }),
              sampleFeedCard(id: 'p-old'),
            ]
          : [sampleFeedCard(id: 'p-old')],
    );
    repository.onCreatePost = (request, _) async =>
        Post.fromJson(samplePostJson(id: 'p-new', status: 'draft'));
    repository.onUpdatePost = (postId, request) async {
      published = true;
      return Post.fromJson(samplePostJson(id: postId, version: 2));
    };

    await tester.pumpWidget(
      App(
        sessionManager: session,
        authRepository: FakeAuthRepository(),
        petsRepository: FakePetsRepository(),
        communityRepository: repository,
        mediaUploaderFactory: (repo, analytics) => MediaUploader(
          repository: repo,
          picker: FakeMediaImagePicker([decodablePickedImage()]),
          compressor: FakeMediaCompressor(),
          directUpload: FakeDirectUploadClient(),
          analytics: analytics,
        ),
      ),
    );
    await tester.pumpAndSettle();

    // 创作 Tab → 发布页（entryPoint=create_tab）。
    await tester.tap(find.text('创作'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('发布动态'));
    await tester.pumpAndSettle();
    expect(find.widgetWithText(TextButton, '存草稿'), findsOneWidget);

    await tester.enterText(find.byType(TextField).first, '刚发布的动态');
    await tester.pump();
    await tester.tap(find.widgetWithText(FilledButton, '发布'));
    await tester.pumpAndSettle();

    // 回首页 Feed（发布页已出栈）+ 整体刷新 + 新帖置顶。
    expect(find.widgetWithText(TextButton, '存草稿'), findsNothing);
    expect(find.text('已发布，去首页看看吧 🐾'), findsOneWidget);
    expect(
      repository.calls.where((call) => call.startsWith('feed:')),
      hasLength(2),
    );
    // 卡片区在首页家具（story 环 / 促销位）之下，滚到可见后断言首位。
    await tester.drag(find.byType(ListView).first, const Offset(0, -320));
    await tester.pumpAndSettle();
    final cards = tester.widgetList<PostCard>(find.byType(PostCard)).toList();
    expect(cards.first.card.id, 'p-new');
    expect(find.text('刚发布的动态'), findsWidgets);
  });
}