import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:timezone/data/latest.dart' as tzdata;
import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';
import 'package:hepan_everyday/app/hepan_app.dart';
import 'package:hepan_everyday/app/app_controller.dart';
import 'package:hepan_everyday/domain/app_snapshot.dart';
import 'package:hepan_everyday/domain/school_identity.dart';
import 'package:hepan_everyday/domain/exam_schedule.dart';
import 'package:hepan_everyday/domain/undergraduate_exam_query.dart';
import 'package:hepan_everyday/features/school/school_session.dart';
import 'package:hepan_everyday/features/school/undergraduate/session.dart';

import '../support/fakes.dart';
import '../support/fake_school_web.dart';

void main() {
  setUpAll(tzdata.initializeTimeZones);
  testWidgets(
    'undergraduate selection persists and enters its manual workflow',
    (tester) async {
      final platform = FakeSchoolPlatform();
      WebViewPlatform.instance = platform;
      final store = MemoryStore(),
          controller = AppController(
            MemoryStore(),
            FakeNotifications(),
            FakeCalendar(),
            () => DateTime.utc(2026, 10, 14),
          );
      final under = UndergraduateSession();
      addTearDown(controller.dispose);
      addTearDown(under.dispose);
      await controller.initialize();
      await tester.pumpWidget(
        HepanApp(
          controller: controller,
          undergraduate: under,
          undergraduateBuilder: () => const Scaffold(body: Text('本科网页')),
        ),
      );
      await tester.pumpAndSettle();
      expect(platform.controllerCreations, 0);
      await tester.tap(find.bySemanticsLabel('个人设置'));
      await tester.pumpAndSettle();
      await tester.tap(find.widgetWithText(FilledButton, '选择学校'));
      await tester.pumpAndSettle();
      expect(find.text('电子科技大学（研究生）'), findsOneWidget);
      expect(find.text('电子科技大学（本科生）'), findsOneWidget);
      await tester.tap(find.text('电子科技大学（本科生）'));
      await tester.pumpAndSettle();
      expect(find.text('本科网页'), findsOneWidget);
      expect(
        controller.snapshot.selectedSchool,
        SupportedSchool.uestcUndergraduate,
      );
      expect(platform.web.loads, ['https://eams.uestc.edu.cn/eams/']);
      expect(under.requestingExams, isFalse);
      store.value = AppSnapshot.fromJson(controller.snapshot.toJson());
      expect(store.value!.selectedSchool, SupportedSchool.uestcUndergraduate);
    },
  );
  testWidgets('failed school preference does not create a browser', (
    tester,
  ) async {
    final platform = FakeSchoolPlatform();
    WebViewPlatform.instance = platform;
    final store = MemoryStore(), under = UndergraduateSession();
    final controller = AppController(
      store,
      FakeNotifications(),
      FakeCalendar(),
      DateTime.now,
    );
    addTearDown(controller.dispose);
    addTearDown(under.dispose);
    await controller.initialize();
    store.failSave = true;
    await tester.pumpWidget(
      HepanApp(
        controller: controller,
        undergraduate: under,
        undergraduateBuilder: () => const Scaffold(body: Text('本科网页')),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.bySemanticsLabel('个人设置'));
    await tester.pumpAndSettle();
    await tester.tap(find.widgetWithText(FilledButton, '选择学校'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('电子科技大学（本科生）'));
    await tester.pumpAndSettle();
    expect(platform.controllerCreations, 0);
    expect(controller.snapshot.selectedSchool, isNull);
    expect(find.text('本科网页'), findsNothing);
  });
  testWidgets('exam refresh reuses the successful undergraduate query', (
    tester,
  ) async {
    final platform = FakeSchoolPlatform();
    WebViewPlatform.instance = platform;
    final under = UndergraduateSession();
    final store = MemoryStore(
      AppSnapshot(
        selectedSchool: SupportedSchool.uestcUndergraduate,
        examSchedule: ExamSchedule(
          semesterLabel: '2025-2026第二学期',
          termId: '503',
          school: SupportedSchool.uestcUndergraduate,
          requestedExamTypes: {1, 2},
          records: [],
        ),
      ),
    );
    final controller = AppController(
      store,
      FakeNotifications(),
      FakeCalendar(),
      DateTime.now,
    );
    addTearDown(controller.dispose);
    addTearDown(under.dispose);
    await controller.initialize();
    await tester.pumpWidget(
      HepanApp(
        controller: controller,
        undergraduate: under,
        undergraduateBuilder: () => const Scaffold(body: Text('本科网页')),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.bySemanticsLabel('考试'));
    await tester.pumpAndSettle();
    await tester.tap(find.byTooltip('从学校更新考试'));
    await tester.pumpAndSettle();
    expect(find.text('本科网页'), findsOneWidget);
    expect(under.query!.term.id, 503);
    expect(under.query!.types, {
      UndergraduateExamType.finalExam,
      UndergraduateExamType.midterm,
    });
  });
  testWidgets('query option cancellation starts no login', (tester) async {
    final platform = FakeSchoolPlatform();
    WebViewPlatform.instance = platform;
    final under = UndergraduateSession();
    final controller = AppController(
      MemoryStore(
        AppSnapshot(selectedSchool: SupportedSchool.uestcUndergraduate),
      ),
      FakeNotifications(),
      FakeCalendar(),
      DateTime.now,
    );
    addTearDown(controller.dispose);
    addTearDown(under.dispose);
    await controller.initialize();
    await tester.pumpWidget(
      HepanApp(
        controller: controller,
        undergraduate: under,
        undergraduateBuilder: () => const Scaffold(body: Text('本科网页')),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.bySemanticsLabel('考试'));
    await tester.pumpAndSettle();
    await tester.tap(find.byTooltip('查询选项'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('取消'));
    await tester.pumpAndSettle();
    expect(platform.controllerCreations, 0);
  });
  testWidgets(
    'shared logout invalidates both schools without creating another browser',
    (tester) async {
      final platform = FakeSchoolPlatform();
      WebViewPlatform.instance = platform;
      final under = UndergraduateSession(), grad = SchoolSession();
      await grad.openTimetable();
      await under.openTimetable();
      final controller = AppController(
        MemoryStore(
          AppSnapshot(selectedSchool: SupportedSchool.uestcUndergraduate),
        ),
        FakeNotifications(),
        FakeCalendar(),
        DateTime.now,
      );
      addTearDown(controller.dispose);
      addTearDown(under.dispose);
      addTearDown(grad.dispose);
      await controller.initialize();
      await tester.pumpWidget(
        HepanApp(controller: controller, school: grad, undergraduate: under),
      );
      await tester.pumpAndSettle();
      await tester.tap(find.bySemanticsLabel('个人设置'));
      await tester.pumpAndSettle();
      await tester.tap(find.text('退出学校登录'));
      await tester.pumpAndSettle();
      await tester.tap(find.text('保留课表和考试'));
      await tester.pumpAndSettle();
      expect(platform.controllerCreations, 2);
      expect(under.canLogout, isFalse);
      expect(grad.canLogout, isFalse);
    },
  );
}