import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:timezone/data/latest.dart' as tzdata;
import 'package:hepan_everyday/widgets/glass_dock.dart';
import 'package:hepan_everyday/app/hepan_app.dart';

import 'navigation_test.dart' show uiController;

void main() {
  setUpAll(tzdata.initializeTimeZones);
  testWidgets('held cursor enlarges before dragging and returns on release', (
    tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        home: Scaffold(
          body: Center(child: GlassDock(selectedIndex: 0, onSelected: (_) {})),
        ),
      ),
    );
    await tester.pumpAndSettle();
    final lens = find
        .descendant(
          of: find.byType(GlassDock),
          matching: find.byType(BackdropFilter),
        )
        .last;
    final resting = tester.getSize(lens);
    final gesture = await tester.startGesture(
      tester.getCenter(find.byKey(const Key('dock-cursor'))),
    );
    await tester.pump(const Duration(milliseconds: 110));
    await tester.pump(const Duration(milliseconds: 200));
    final held = tester.getSize(lens);
    expect(held.width, greaterThan(resting.width * 1.12));
    expect(held.height, greaterThan(resting.height * 1.12));
    await gesture.cancel();
    await tester.pumpAndSettle();
    expect(tester.getSize(lens).width, closeTo(resting.width, 0.5));
    expect(tester.getSize(lens).height, closeTo(resting.height, 0.5));
  });
  testWidgets(
    'Dock stays visible while sliding down instead of abruptly fading',
    (tester) async {
      tester.view.physicalSize = const Size(390, 844);
      tester.view.devicePixelRatio = 1;
      addTearDown(tester.view.resetPhysicalSize);
      addTearDown(tester.view.resetDevicePixelRatio);
      final c = uiController();
      await c.initialize();
      await c.showDemo();
      await tester.pumpWidget(HepanApp(controller: c));
      await tester.pumpAndSettle();
      final dock = find.byType(GlassDock);
      final before = tester.getRect(dock);
      final gesture = await tester.startGesture(
        tester.getCenter(find.text('周三')),
      );
      await gesture.moveBy(const Offset(0, -80));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 120));
      final fading = find.ancestor(
        of: dock,
        matching: find.byType(FadeTransition),
      );
      final opacity = fading.evaluate().isEmpty
          ? 1.0
          : tester.widget<FadeTransition>(fading.first).opacity.value;
      expect(opacity, greaterThan(0.95));
      expect(tester.getRect(dock).top, greaterThan(before.top));
      expect(tester.getRect(dock).top, lessThan(844));
      await gesture.up();
      await tester.pumpAndSettle();
      expect(dock.hitTestable(), findsNothing);
      c.dispose();
    },
  );
}