import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:student_app/presentation/screens/virtual_labs/lab_identity.dart';
import 'package:student_app/presentation/screens/virtual_labs/labs_gallery_screen.dart';
import 'package:student_app/presentation/screens/virtual_labs/labs_registry.dart';
import 'package:student_app/presentation/screens/virtual_labs/subject_virtual_labs_view.dart';

void main() {
  test('registry covers all Grade-10 labs (48 entries, 14 subjects)', () {
    expect(Grade10LabsRegistry.all.length, 48);
    expect(Grade10LabsRegistry.subjects.length, 14);
    final ids = Grade10LabsRegistry.all.map((e) => e.id).toSet();
    expect(ids.length, 48); // stable unique ids
  });

  test('bound vs authoring-tool split: 34 lesson-bound, 14 standalone tools',
      () {
    final bound = Grade10LabsRegistry.boundEntries;
    final tools = Grade10LabsRegistry.authoringTools;
    expect(bound.length, 34);
    expect(tools.length, 14);
    for (final e in bound) {
      expect(e.identity.isBound, isTrue, reason: '${e.id} should be bound');
      expect(e.isPublished, isFalse,
          reason: 'no lab may be published before server bundle version');
    }
    for (final e in tools) {
      expect(e.identity.curriculumLessonId, isEmpty,
          reason: '${e.id} must not masquerade as a lesson lab');
    }
  });

  test('every bound identity carries an explicit, well-formed curriculum id',
      () {
    final pattern = RegExp(r'^[a-z_]+_10_semester_[12]_unit_\d{2}_lesson_\d{2}$'
        r'|^[a-z_]+_10_semester_[12]_unit_\d{2}_unit_enrichment_and_review$');
    for (final e in Grade10LabsRegistry.boundEntries) {
      expect(pattern.hasMatch(e.identity.curriculumLessonId), isTrue,
          reason: 'malformed lesson id: ${e.identity.curriculumLessonId}');
      expect(e.identity.curriculumVersion, 'jordan-grade10-2026-source-review');
    }
  });

  test('entryForCurriculumLessonId matches ONLY exact curriculum ids', () {
    // Exact bound id resolves (draft, not published).
    final vectors = Grade10LabsRegistry.entryForCurriculumLessonId(
        'physics_10_semester_1_unit_01_lesson_02');
    expect(vectors, isNotNull);
    expect(vectors!.identity.curriculumLessonId,
        'physics_10_semester_1_unit_01_lesson_02');

    final vectorsIntro = Grade10LabsRegistry.entryForCurriculumLessonId(
        'physics_10_semester_1_unit_01_lesson_01');
    expect(vectorsIntro, isNotNull);
    expect(vectorsIntro!.identity.curriculumLessonId,
        'physics_10_semester_1_unit_01_lesson_01');

    // A same-title keyword/lesson_01 guess must NOT resolve.
    expect(Grade10LabsRegistry.entryForCurriculumLessonId('lesson_01'), isNull);
    expect(
        Grade10LabsRegistry.entryForCurriculumLessonId('physics_10'), isNull);
    expect(
        Grade10LabsRegistry.entryForCurriculumLessonId(
            'physics_10_semester_1_unit_01_lesson_99'),
        isNull);

    // Unbound authoring tools never resolve through lesson lookup.
    for (final e in Grade10LabsRegistry.authoringTools) {
      expect(Grade10LabsRegistry.entryForCurriculumLessonId(e.id), isNull);
    }
  });

  test('findForLesson requires publication — nothing published yet', () {
    Grade10LabsRegistry.previewModeEnabled = false;
    for (final e in Grade10LabsRegistry.boundEntries) {
      final found = Grade10LabsRegistry.findForLesson(
        subjectTitle: e.subjectAr,
        lessonTitle: e.lessonAr,
        curriculumLessonId: e.identity.curriculumLessonId,
      );
      expect(found, isNull,
          reason:
              'draft labs must never surface to students in production: ${e.id}');
    }
    Grade10LabsRegistry.previewModeEnabled = true;
  });

  test('findForLesson surfaces labs in previewMode for local development', () {
    Grade10LabsRegistry.previewModeEnabled = true;
    final found = Grade10LabsRegistry.findForLesson(
      subjectTitle: 'اللغة العربية',
      lessonTitle: 'أي عنوان',
      curriculumLessonId: 'arabic_10_semester_1_unit_01_lesson_01',
    );
    expect(found, isNotNull);
    expect(found?.identity.curriculumLessonId,
        'arabic_10_semester_1_unit_01_lesson_01');
  });

  test('a lab is published only when released AND bundle version provided', () {
    // Emulate a server bundle arriving only for released bound lesson.
    const released = LabIdentity(
      curriculumLessonId: 'math_10_semester_1_unit_01_lesson_02',
      subjectAr: 'الرياضيات',
      lessonAr: 'حل أنظمة خطية وتربيعية',
      reviewStatus: 'released',
      publishedBundleVersion: 'pkg-2026.1',
    );
    expect(released.isBound, isTrue);
    expect(released.isReleased, isTrue);
    expect(released.isPublished, isTrue);

    // Unbound tools cannot be published at all (no lesson anchor).
    const tool =
        LabIdentity(toolKey: 'x_tool', subjectAr: 'غير ذلك', lessonAr: 'أداة');
    expect(tool.isPublished, isFalse);
  });

  testWidgets('gallery renders the authoring-preview surface', (t) async {
    await t.pumpWidget(
        const MaterialApp(home: Scaffold(body: VirtualLabsGalleryScreen())));
    await t.pumpAndSettle();
    expect(find.text('المختبرات الافتراضية — الصف العاشر'), findsOneWidget);
    expect(find.text('جمع المتجهات وتحليلها'), findsOneWidget);
    // Standalone tools are listed as authoring tools (registry-level proof,
    // lazy list keeps far tiles unbuilt).
    expect(
      Grade10LabsRegistry.authoringTools
          .any((e) => e.lessonAr == 'اختبار اللهب'),
      isTrue,
    );
  });

  testWidgets(
      'subject view shows honest unpublished state when preview is false',
      (t) async {
    Grade10LabsRegistry.previewModeEnabled = false;
    await t.pumpWidget(const MaterialApp(
      home: Scaffold(
        body: SubjectVirtualLabsView(
          subjectTitle: 'الفيزياء',
          primaryColor: Colors.cyan,
        ),
      ),
    ));
    await t.pump();
    expect(find.text('تجارب ومختبرات الفيزياء'), findsNothing);
    expect(find.text('لا مختبرات منشورة لمبحث الفيزياء بعد'), findsOneWidget);
    expect(find.text('معرض المعاينة التأليفية'), findsOneWidget);
    Grade10LabsRegistry.previewModeEnabled = true;
  });

  testWidgets('sample labs build on the shared 2/3-1/3 scaffold', (t) async {
    for (final id in [
      'physics_10_semester_1_unit_01_lesson_02', // vectors (bound)
      'math_10_semester_1_unit_03_lesson_02', // unit circle (bound)
      'finance_budget', // budget (tool)
      'islamic_10_semester_1_unit_01_lesson_02', // inheritance (bound)
    ]) {
      final entry = Grade10LabsRegistry.all.firstWhere((e) => e.id == id);
      await t
          .pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
      await t.pump();
      expect(find.text('لوحة التحكم والضبط'), findsOneWidget);
      expect(find.text('فحص الفهم والاستيعاب', skipOffstage: false),
          findsOneWidget);
    }
  });

  testWidgets('arabic listening lab: etiquettes toggle unlock readiness',
      (t) async {
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_01')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر الانتباه والتركيز'), findsOneWidget);
    for (var i = 0; i < 4; i++) {
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.text('جاهزٌ للاستماعِ الواعي ✓'), findsOneWidget);
  });

  testWidgets('arabic listening lab: ordering trial stages solves activity',
      (t) async {
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_01')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('مراحل الابتلاء'));
    await t.pump();
    for (final letter in ['د', 'أ', 'ج', 'ب']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(find.textContaining('أحسنتَ ترتيبَ المراحل'), findsOneWidget);
  });

  testWidgets('arabic apology lab: speech-building order solves activity',
      (t) async {
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر فنّ الاعتذار'), findsOneWidget);
    for (final letter in ['أ', 'ب', 'ج']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(find.textContaining('أحسنتَ بناءَ حديثِك'), findsOneWidget);
  });

  testWidgets('arabic apology lab: tone affects listener reaction', (t) async {
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('نبرة الصوت'));
    await t.pump();
    await t.tap(find.text('هادئٌ صادقٌ'));
    await t.pump();
    expect(find.textContaining('بذلُ السلامِ وحُسنُ الكلام'), findsWidgets);
  });

  testWidgets('arabic quranic lab: surah-apology matching lights pedestals',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2200));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_03')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر القراءة الفاهمة'), findsOneWidget);
    // حَلّ كل سورة باختيار الخيار الصحيح (الأول دائماً).
    final labels = [
      'الإقرارُ بالخطأ وطلبُ المغفرة (﴿لا تثريبَ عليكم﴾)',
      'إسفٌ شديدٌ والمسارعةُ إلى الرشادِ بعدَ ذكرِ العجل',
      'الاعترافُ بالنسيانِ وآدابُ التعلّمِ والخُلُقُ الرفيع',
    ];
    for (var i = 0; i < 3; i++) {
      await t.tap(find.text(labels[i]));
      await t.pump();
    }
    expect(find.textContaining('صحيح: لكلِّ قصةٍ وجهٌ'), findsOneWidget);
  });

  testWidgets('arabic quranic lab: critical silent-reading behaviours',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2200));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_03')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('القراءةُ الصامتة'));
    await t.pump();
    // السلوكان الصحيحان ON والخطآن يبقيان OFF في الحالة الابتدائية.
    await t.tap(find.byType(CupertinoSwitch).at(0));
    await t.tap(find.byType(CupertinoSwitch).at(1));
    await t.pump();
    expect(find.text('قراءةٌ صامتةٌ صحيحة: العينُ والعقلُ بلا همسٍ ولا صوت ✓'),
        findsOneWidget);
  });

  testWidgets('arabic letter lab: elements fill the letter sheet', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_04')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر رسالة الاعتذار'), findsOneWidget);
    final labels = [
      'عنصرُ المستلِم',
      'عنصرُ الموضوع',
      'عنصرُ التحيةِ والسلامِ',
      'عنصرُ المقدمة',
      'عنصرُ صلبِ الرسالةِ: الاعتذار',
      'عنصرُ الخاتمةِ والتوقيع',
    ];
    for (var i = 0; i < 6; i++) {
      await t.tap(find.text(labels[i]));
      await t.pump();
    }
    expect(find.textContaining('رسالتُك اكتملت'), findsOneWidget);
  });

  testWidgets('arabic letter lab: ordering letter paragraphs solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_04')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('ترتيبُ الرسالة'));
    await t.pump();
    for (final letter in ['أ', 'ب', 'ج', 'د']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(
        find.textContaining('أتممتَ ترتيبَ رسالةِ الاعتذار'), findsOneWidget);
  });

  testWidgets('arabic conditional lab: classify jazma tools solves bins',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_05')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر أسلوب الشرط'), findsOneWidget);
    // The 5 jazma tools pick «جازمة» (rows 0-4).
    for (var i = 0; i < 5; i++) {
      await t.tap(find.text('جازمة').at(i));
      await t.pump();
    }
    // The 3 non-jazma tools pick «غيرُ جازمة» (rows 5-7).
    for (var i = 5; i < 8; i++) {
      await t.tap(find.text('غيرُ جازمة').at(i));
      await t.pump();
    }
    expect(find.textContaining('صنَّفْتَ أدواتِ الشرطِ'), findsOneWidget);
  });

  testWidgets('arabic conditional lab: fill iram model solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_05')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('أتمَّ الإعراب'));
    await t.pump();
    const row1 = 'فعلٌ مضارعٌ مجزومٌ، وعلامةُ جزمِه حذفُ حرفِ العلةِ من آخرِه';
    expect(find.text(row1), findsOneWidget);
    await t.tap(find.text(row1));
    await t.pump();
    await t.tap(find.text('ضميرٌ مستترٌ تقديرُه (أنت)'));
    await t.pump();
    await t.tap(
        find.text('ضميرٌ متصلٌّ مبنيٌّ على الكسرِ في محلِّ نصبٍ مفعولٌ به'));
    await t.pump();
    expect(find.textContaining('أتممتَ نموذجَ إعرابِ'), findsOneWidget);
  });

  testWidgets('arabic informative lab: classify sentences solves buckets',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_06')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر الأسلوب الخبري'), findsOneWidget);
    // Rows 0,1,4,5 are خبرية; rows 2,3 are إنشائية.
    await t.tap(find.text('خبريّةٌ').at(0));
    await t.pump();
    await t.tap(find.text('خبريّةٌ').at(1));
    await t.pump();
    await t.tap(find.text('إنشائيّةٌ').at(2));
    await t.pump();
    await t.tap(find.text('إنشائيّةٌ').at(3));
    await t.pump();
    await t.tap(find.text('خبريّةٌ').at(4));
    await t.pump();
    await t.tap(find.text('خبريّةٌ').at(5));
    await t.pump();
    expect(find.textContaining('صنَّفْتَ الجملَ'), findsOneWidget);
  });

  testWidgets('arabic informative lab: complete rules solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_01_lesson_06')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('أكملِ القواعدَ'));
    await t.pump();
    await t.tap(find.text('الصدقَ والكذبَ'));
    await t.pump();
    await t.tap(find.text('الخبريِّ والإنشائيِّ'));
    await t.pump();
    await t.tap(find.text('الاسميةِ والفعليةِ'));
    await t.pump();
    expect(
        find.textContaining('أكملتَ قواعدَ الأسلوبِ الخبريِّ'), findsOneWidget);
  });

  testWidgets('arabic unit2 listening lab: correcting statements solves task',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_01')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر الاستماع الواعي (قصة الضيف)'), findsOneWidget);
    const targets = [true, true, true, true, false];
    for (var i = 0; i < targets.length; i++) {
      if (targets[i]) {
        await t.tap(find.byType(CupertinoSwitch).at(i));
        await t.pump();
      }
    }
    expect(find.textContaining('عباراتُك صحيحة'), findsOneWidget);
  });
  testWidgets('arabic unit2 listening lab: story order solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_01')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('رتِّبِ الحكاية'));
    await t.pump();
    for (final letter in ['أ', 'ب', 'ج', 'د']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(find.text('فحص الفهم والاستيعاب'), findsOneWidget);
  });

  testWidgets('arabic unit2 speaking lab: values checklist solves task',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر العرض التقديمي (أتحدثُ بطلاقةٍ)'), findsOneWidget);
    const offIdx = 4;
    for (var i = 0; i < 6; i++) {
      if (i == offIdx) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('قيمُ الوطنيةِ معطوبةٌ'), findsOneWidget);
  });

  testWidgets('arabic unit2 speaking lab: presentation plan solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('عرضُ التحدّثِ'));
    await t.pump();
    // targets [0,0,0,1,0] for rows مطلوب/ليس مطلوبًا
    for (var i = 0; i < 5; i++) {
      if (i == 3) continue;
      await t.tap(find.text('مطلوبٌ').at(i));
      await t.pump();
    }
    await t.tap(find.text('ليسَ مطلوبًا').at(3));
    await t.pump();
    expect(find.textContaining('خطّةُ العرضِ سليمةٌ'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 speaking lab: quote-to-meaning solves with '
      'checkpoint', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('القولُ والمضمونُ'));
    await t.pump();
    // correct letters per row: أ، ب، ج، ب → indexes 0,1,2,1
    await t.tap(find.text('أ').at(0));
    await t.pump();
    await t.tap(find.text('ب').at(1));
    await t.pump();
    await t.tap(find.text('ج').at(2));
    await t.pump();
    await t.tap(find.text('ب').at(3));
    await t.pump();
    expect(find.text('فحص الفهم والاستيعاب'), findsOneWidget);
  });

  testWidgets('arabic unit2 poetry lab: lexicon matching solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_03')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر قراءةِ شعرِ المقاومة (إلى الصامدين غرب النهر)'),
        findsOneWidget);
    // correct letters per row: ب، أ، ب، ب → indices 1,0,1,1
    const taps = ['ب', 'أ', 'ب'];
    for (var i = 0; i < 3; i++) {
      await t.tap(find.text(taps[i]).at(i));
      await t.pump();
    }
    // fourth row correct is 'ب' at index 3
    await t.tap(find.text('ب').at(3));
    await t.pump();
    expect(find.textContaining('معجمُ القصيدةِ محفوظٌ'), findsOneWidget);
  });

  testWidgets('arabic unit2 poetry lab: poem journey ordering solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_03')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('جوُّ القصيدةِ'));
    await t.pump();
    for (final letter in ['أ', 'ب', 'ج', 'د']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(find.text('فحص الفهم والاستيعاب'), findsOneWidget);
  });

  testWidgets('arabic unit2 poetry lab: prosody checklist solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_03')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('رَشِيقُ التفعيلةِ'));
    await t.pump();
    // targets [T,T,F,T,T,F]; toggle switches 2 and 5 stay off
    for (var i = 0; i < 6; i++) {
      if (i == 2 || i == 5) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('رَشِيقُ التفعيلةِ واضحٌ'), findsOneWidget);
  });

  testWidgets('arabic unit2 writing lab: craft checklist solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_04')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر كتابةِ تحليلِ النصِّ الشعريِّ'), findsOneWidget);
    // targets [T,T,T,T,T,F,T,T]; index 5 (الورق والحبر) stays off
    for (var i = 0; i < 8; i++) {
      if (i == 5) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('عناصرُ الكتابةِ مثبّتةٌ'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 writing lab: criteria ordering solves with '
      'checkpoint', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_04')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('معاييرُ التحليلِ'));
    await t.pump();
    for (final letter in ['أ', 'ب', 'ج', 'د']) {
      await t.tap(find.text(letter));
      await t.pump();
    }
    expect(find.text('فحص الفهم والاستيعاب'), findsOneWidget);
  });

  testWidgets('arabic unit2 writing lab: analysis checklist solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_04')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('تحليلُ الكرميِّ'));
    await t.pump();
    // targets [T,T,T,T,T,F]; toggle switch 5 (كلام مجرد) stays off
    for (var i = 0; i < 6; i++) {
      if (i == 5) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('تحليلُ الكرميِّ مطابقٌ'), findsOneWidget);
  });

  testWidgets('arabic unit2 vocative lab: components checklist solves activity',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_05')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    expect(find.text('مختبر أسلوبِ النداءِ'), findsOneWidget);
    // targets [T,T,T,T,T,T,T,F]; index 7 (المفعول والعِدة) stays off
    for (var i = 0; i < 8; i++) {
      if (i == 7) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('مكوّناتُ النداءِ مثبّتةٌ'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 vocative lab: types matching solves with '
      'checkpoint', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_05')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('أنواعُ المنادى'));
    await t.pump();
    // correct letters per row: أ، ب، أ، ج، أ → indices 0,1,0,2,0
    const taps = ['أ', 'ب', 'أ', 'ج', 'أ'];
    for (var i = 0; i < 5; i++) {
      await t.tap(find.text(taps[i]).at(i));
      await t.pump();
    }
    expect(find.text('فحص الفهم والاستيعاب'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 vocative lab: situational checklist solves '
      'activity', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_05')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('توظيفُ النداءِ'));
    await t.pump();
    // targets [T,T,T,T,F,F]; toggles 4 and 5 stay off
    for (var i = 0; i < 6; i++) {
      if (i == 4 || i == 5) continue;
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('توظيفُ النداءِ سليمٌ'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 insha lab: concept checklist solves activity', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_06')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    // Concept toggles: 0,1,2,3,4,5 are true, 6,7 are false
    for (var i = 0; i < 6; i++) {
      await t.tap(find.byType(CupertinoSwitch).at(i));
      await t.pump();
    }
    expect(find.textContaining('مفهومُ الإنشاءِ الطّلبيِّ مثبَّتٌ'), findsOneWidget);
  });

  testWidgets(
      'arabic unit2 insha lab: types selection solves activity', (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'arabic_10_semester_1_unit_02_lesson_06')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();
    await t.tap(find.text('أنواعُ الإنشاءِ'));
    await t.pump();
    expect(find.text('النداءُ'), findsWidgets);
  });

  testWidgets(
      'physics vectors intro lab: crosswind landing and tab switching render correctly',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'physics_10_semester_1_unit_01_lesson_01')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();

    // Verify Tab 0: Crosswind Landing
    expect(find.text('الكميات القياسية والمتجهة وتمثيلها'), findsOneWidget);
    expect(find.textContaining('السرعة الأرضية |Vg|'), findsOneWidget);
    expect(find.text('تنفيذ هبوط تجريبي على المدرج 🛬'), findsOneWidget);

    // Tap test landing
    await t.tap(find.text('تنفيذ هبوط تجريبي على المدرج 🛬'));
    await t.pump(const Duration(milliseconds: 200));
    expect(find.text('جاري الهبوط التجريبي...'), findsOneWidget);

    // Switch to Tab 1: Vector properties & scalar multiple
    await t.tap(find.text('تمثيل وسالب المتجه'));
    await t.pump();
    expect(find.textContaining('سالب المتجه'), findsWidgets);
    expect(find.text('المقدار |A|'), findsOneWidget);

    // Switch to Tab 2: Dot and cross product
    await t.tap(find.text('الضرب النقطي والتقاطعي'));
    await t.pump();
    expect(find.textContaining('الضرب القياسي'), findsWidgets);
    expect(find.textContaining('الضرب المتجهي'), findsWidgets);
  });

  testWidgets(
      'physics projectile motion lab: launch, presets and vectors render correctly',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'physics_10_semester_1_unit_02_lesson_02')!;
    await t.pumpWidget(MaterialApp(home: Scaffold(body: entry.builder(null))));
    await t.pump();

    // Verify main components render
    expect(find.text('حركة المقذوفات في بُعدين'), findsOneWidget);
    expect(find.textContaining('المدى R ='), findsOneWidget);
    expect(find.text('إطلاق القذيفة 🚀'), findsOneWidget);

    // Tap angle preset 30°
    await t.tap(find.text('30°'));
    await t.pump();
    expect(find.text('30°'), findsWidgets);

    // Launch projectile
    await t.tap(find.text('إطلاق القذيفة 🚀'));
    await t.pump(const Duration(milliseconds: 100));
    expect(find.text('إيقاف مؤقت'), findsOneWidget);

    // Reset simulation
    await t.tap(find.text('إعادة'));
    await t.pump();
    expect(find.text('إطلاق القذيفة 🚀'), findsOneWidget);
  });

  testWidgets(
      'earth air masses lab: front switching and checkpoint trigger render correctly',
      (t) async {
    await t.binding.setSurfaceSize(const Size(900, 2600));
    addTearDown(() => t.binding.setSurfaceSize(null));
    final entry = Grade10LabsRegistry.entryForCurriculumLessonId(
        'earth_sciences_10_semester_2_unit_03_lesson_01')!;
    var checkpointTriggered = false;
    await t.pumpWidget(MaterialApp(
        home: Scaffold(body: entry.builder((q, opts, idx) {
      checkpointTriggered = true;
    }))));
    await t.pump();

    // Verify main title and front options
    expect(find.textContaining('الكتل والجبهات الهوائية'), findsWidgets);
    expect(find.text('جبهة باردة ❄️'), findsWidgets);
    expect(find.text('جبهة دافئة ☀️'), findsWidgets);
    expect(find.text('مستقرة ⏸️'), findsWidgets);
    expect(find.text('مقفلة 🌀'), findsWidgets);

    // Tap warm front tab
    await t.tap(find.text('جبهة دافئة ☀️').first);
    await t.pump();

    // Tap occluded front tab
    await t.tap(find.text('مقفلة 🌀').first);
    await t.pump();

    // Tap air mass chip cT
    await t.tap(find.text('cT قارية مدارية').first);
    await t.pump();
    expect(find.textContaining('مدارية'), findsWidgets);

    // Tap checkpoint trigger button
    await t.tap(find.text('فحص الفهم والاستيعاب').first);
    await t.pump();
    expect(checkpointTriggered, isTrue);
  });
}