import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:timezone/data/latest.dart' as tzdata;
import 'package:hepan_everyday/features/timetable/week_grid.dart';
import 'package:hepan_everyday/domain/schedule_engine.dart';
import 'package:hepan_everyday/domain/app_settings.dart';

void main() {
  setUpAll(tzdata.initializeTimeZones);
  for (final scale in [1.0, 2.0]) {
    testWidgets(
      'seven days and full teacher/room fit equal duration cards at scale $scale',
      (tester) async {
        tester.view.physicalSize = const Size(360, 800);
        tester.view.devicePixelRatio = 1;
        addTearDown(tester.view.resetPhysicalSize);
        addTearDown(tester.view.resetDevicePixelRatio);
        final term = Semester(startDate: DateTime(2026, 9, 7), totalWeeks: 1);
        Course c(String id, int day, String teacher, String room) => Course(
          id: id,
          name: '很长的课程名称应当可以省略但点击后显示完整课程名称$id',
          teacher: teacher,
          room: room,
          weekday: day,
          startPeriod: 3,
          endPeriod: 4,
          weeks: {1},
          source: CourseSource.file,
        );
        final events = ScheduleEngine.occurrences([
          c('a', 1, '张晓玲、杨拥军', '品学楼B102'),
          c('b', 7, '李老师', '立人楼教学实验中心B412'),
        ], term);
        await tester.pumpWidget(
          MaterialApp(
            home: MediaQuery(
              data: MediaQueryData(
                size: const Size(360, 800),
                textScaler: TextScaler.linear(scale),
              ),
              child: Scaffold(
                body: SingleChildScrollView(
                  child: WeekGrid(
                    events: events,
                    monday: term.firstMonday,
                    today: term.startDate,
                    settings: const AppSettings(),
                  ),
                ),
              ),
            ),
          ),
        );
        await tester.pumpAndSettle();
        expect(tester.getRect(find.text('周一')).left, greaterThanOrEqualTo(0));
        expect(tester.getRect(find.text('周日')).right, lessThanOrEqualTo(360));
        final first = tester.getRect(
          find.bySemanticsLabel('${events.first.course.name}，张晓玲、杨拥军，品学楼B102'),
        );
        final last = tester.getRect(
          find.bySemanticsLabel('${events.last.course.name}，李老师，立人楼教学实验中心B412'),
        );
        expect(first.height, last.height);
        for (final text in ['张晓玲、杨拥军', '品学楼B102', '李老师', '立人楼教学实验中心B412']) {
          final finder = find.text(text);
          final widget = tester.widget<Text>(finder);
          expect(widget.maxLines, isNull);
          expect(widget.overflow, isNot(TextOverflow.ellipsis));
          final paragraph = tester.renderObject<RenderParagraph>(finder);
          expect(paragraph.didExceedMaxLines, isFalse);
          final rect = tester.getRect(finder);
          final card = text == '张晓玲、杨拥军' || text == '品学楼B102' ? first : last;
          expect(rect.bottom, lessThanOrEqualTo(card.bottom));
          expect(rect.left, greaterThanOrEqualTo(card.left));
          expect(rect.right, lessThanOrEqualTo(card.right));
        }
        expect(tester.takeException(), isNull);
        await tester.ensureVisible(find.text(events.first.course.name));
        await tester.tap(find.text(events.first.course.name));
        await tester.pumpAndSettle();
        expect(find.text(events.first.course.name), findsNWidgets(2));
      },
    );
  }
}