import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:hepan_everyday/features/school/undergraduate/exam_query_picker.dart';
import 'package:hepan_everyday/domain/undergraduate_exam_query.dart';
import 'package:hepan_everyday/domain/school_term.dart';
import 'package:hepan_everyday/domain/school_identity.dart';

void main() {
  testWidgets('exam picker keeps one semester and requires at least one type', (
    tester,
  ) async {
    UndergraduateExamQuery? result;
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) => Scaffold(
            body: TextButton(
              onPressed: () async {
                result = await showUndergraduateExamQueryPicker(
                  context,
                  now: DateTime(2026, 10),
                );
              },
              child: const Text('选择'),
            ),
          ),
        ),
      ),
    );
    await tester.tap(find.text('选择'));
    await tester.pumpAndSettle();
    expect(find.text('2026-2027第一学期'), findsOneWidget);
    await tester.tap(find.text('期末考试'));
    await tester.pump();
    expect(
      tester
          .widget<FilledButton>(find.widgetWithText(FilledButton, '开始查询'))
          .onPressed,
      isNull,
    );
    await tester.tap(find.text('期中考试'));
    await tester.tap(find.text('补考/缓考'));
    await tester.pump();
    await tester.tap(find.text('开始查询'));
    await tester.pumpAndSettle();
    expect(result!.term.id, 523);
    expect(result!.types, {
      UndergraduateExamType.midterm,
      UndergraduateExamType.makeup,
    });
  });
  testWidgets('saved term and exam types persist and cancel returns null', (
    tester,
  ) async {
    final initial = UndergraduateExamQuery(
      term: SchoolTerm(503, school: SupportedSchool.uestcUndergraduate),
      types: {UndergraduateExamType.midterm},
    );
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) => Scaffold(
            body: TextButton(
              onPressed: () => showUndergraduateExamQueryPicker(
                context,
                initial: initial,
                now: DateTime(2026, 10),
              ),
              child: const Text('选择'),
            ),
          ),
        ),
      ),
    );
    await tester.tap(find.text('选择'));
    await tester.pumpAndSettle();
    expect(find.text('2025-2026第二学期'), findsOneWidget);
    expect(
      tester
          .widget<CheckboxListTile>(
            find.widgetWithText(CheckboxListTile, '期中考试'),
          )
          .value,
      isTrue,
    );
    await tester.tap(find.text('取消'));
    await tester.pumpAndSettle();
    expect(find.text('开始查询'), findsNothing);
  });
}