import 'package:flutter_test/flutter_test.dart';
import 'package:report_notebooklm_app/main.dart';

void main() {
  testWidgets('renders shell tabs and report detail modules', (tester) async {
    await tester.pumpWidget(MyApp(dataSource: FakeDataSource()));
    await tester.pumpAndSettle();

    expect(find.text('推荐'), findsWidgets);
    expect(find.text('研报'), findsWidgets);
    expect(find.text('机构'), findsWidgets);
    expect(find.text('听单'), findsWidgets);
    expect(find.text('我的'), findsWidgets);
    expect(find.text('黄金月报：金价新高之后，谁在继续买？'), findsOneWidget);

    await tester.tap(find.text('黄金月报：金价新高之后，谁在继续买？'));
    await tester.pumpAndSettle();

    expect(find.text('研报详情'), findsOneWidget);
    expect(find.text('报告要点'), findsWidgets);
    expect(find.text('报告中的关键数据'), findsWidgets);
    expect(find.text('查看详情'), findsWidgets);

    await tester.tap(find.text('报告摘要').last);
    await tester.pumpAndSettle();

    expect(find.text('报告摘要'), findsWidgets);
    expect(find.text('需求结构'), findsOneWidget);
  });
}

class FakeDataSource extends ReportDataSource {
  final institution = const Institution(
    id: 'inst_ssga',
    nameCn: '道富环球投资管理',
    nameEn: 'State Street Global Advisors',
    sourceTier: 'tier_2',
    coveredTopics: ['贵金属'],
    reportCount: 1,
  );

  late final report = ReportCardModel(
    id: 'rep_ssga_gold',
    titleCn: '黄金月报：金价新高之后，谁在继续买？',
    oneLiner: '央行购金转向结构性，ETF 重新净流入。',
    institution: institution,
    topics: const ['贵金属', '跨资产'],
    releasedAt: '2026-05-22T00:00:00',
    hasAudio: true,
    interpretationLabel: '研报解读',
    sourceTier: 'authorized_partner',
    cacheVersion: 'rep_ssga_gold:v1',
  );

  @override
  Future<List<ReportCardModel>> recommended() async => [report];

  @override
  Future<List<ReportCardModel>> reports() async => [report];

  @override
  Future<List<Institution>> institutions() async => [institution];

  @override
  Future<Institution> institutionDetail(String institutionId) async {
    return Institution(
      id: institution.id,
      nameCn: institution.nameCn,
      nameEn: institution.nameEn,
      sourceTier: institution.sourceTier,
      coveredTopics: institution.coveredTopics,
      reportCount: 1,
      introCn: '道富环球投资管理的公开研究用于演示。',
      credibilityNote: 'tier_2 来源。',
      recentReports: [report],
    );
  }

  @override
  Future<List<AudioItem>> listen() async => [
    AudioItem(
      audioId: 'aud_ssga_gold',
      titleCn: '金价新高之后，谁在继续买？',
      reportTitleCn: report.titleCn,
      durationSec: 180,
      reportId: report.id,
      institution: institution,
    ),
  ];

  @override
  Future<ReportDetail> reportDetail(String reportId) async => ReportDetail(
    id: report.id,
    titleCn: report.titleCn,
    oneLiner: report.oneLiner,
    institution: institution,
    source: const {
      'source_tier': 'authorized_partner',
      'source_note': '原文来源于机构公开研究页。',
    },
    topics: report.topics,
    hasAudio: true,
    releasedAt: report.releasedAt,
    cacheVersion: report.cacheVersion,
    modules: const [
      DisplayModule(
        id: 'mod_ssga_gold_executive_overview',
        type: 'executive_overview',
        layer: 'p0',
        renderMode: 'card_plus_page',
        hasDetailPage: true,
        sortOrder: 1,
        titleCn: '报告摘要',
        preview: {'preview_summary': '本期月报拆解黄金买盘。', 'section_count': 3},
      ),
      DisplayModule(
        id: 'mod_ssga_gold_core_insights',
        type: 'core_insights',
        layer: 'p0',
        renderMode: 'inline',
        hasDetailPage: true,
        sortOrder: 2,
        titleCn: '报告要点',
        content: {
          'points': [
            {'kind': 'view', 'text': '央行购金从机会性买入转向结构性配置。'},
          ],
        },
      ),
      DisplayModule(
        id: 'mod_ssga_gold_key_data',
        type: 'key_data',
        layer: 'p0',
        renderMode: 'card_plus_page',
        hasDetailPage: true,
        sortOrder: 3,
        titleCn: '报告中的关键数据',
        preview: {
          'preview_headline': '10 个关键数据点',
          'highlights': ['ETF 连续净流入'],
        },
      ),
    ],
  );

  @override
  Future<ModuleDetail> moduleDetail(String reportId, String moduleId) async {
    return ModuleDetail(
      id: moduleId,
      type: 'executive_overview',
      titleCn: '报告摘要',
      content: const {
        'sections': [
          {'heading': '需求结构', 'body': '央行与 ETF 买盘提供支撑。'},
        ],
      },
      contentEtag: 'etag',
      cacheVersion: 'rep_ssga_gold:v1',
    );
  }
}