// Author: fruit.com.cn

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/widgets/drama_grid_skeleton.dart';

void main() {
  testWidgets('renders one narrow highlight overlay per skeleton card', (
    tester,
  ) async {
    tester.view.physicalSize = const Size(390, 1000);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);

    await tester.pumpWidget(
      const MaterialApp(
        home: Scaffold(
          body: DramaGridSkeleton(
            columns: 3,
            horizontalPadding: 14,
            crossAxisSpacing: 8,
            mainAxisSpacing: 12,
          ),
        ),
      ),
    );
    await tester.pump(const Duration(milliseconds: 100));

    expect(find.byType(GridView), findsOneWidget);
    expect(find.byType(ShaderMask), findsNothing);
    for (var index = 0; index < 9; index++) {
      final card = find.byKey(Key('drama-grid-skeleton-$index'));
      expect(card, findsOneWidget);
      expect(
        find.descendant(of: card, matching: find.byType(IgnorePointer)),
        findsOneWidget,
      );
      final overlay = find.descendant(
        of: card,
        matching: find.byWidgetPredicate(
          (widget) =>
              widget is DecoratedBox &&
              widget.decoration is BoxDecoration &&
              (widget.decoration as BoxDecoration).gradient != null,
        ),
      );
      expect(overlay, findsOneWidget);
      final decoration =
          tester.widget<DecoratedBox>(overlay).decoration as BoxDecoration;
      final gradient = decoration.gradient! as LinearGradient;
      expect(gradient.colors, const [
        Colors.transparent,
        Color(0x0DFFFFFF),
        Colors.transparent,
      ]);
      expect(gradient.stops, const [0.42, 0.5, 0.58]);
      expect(gradient.stops![2] - gradient.stops![0], lessThanOrEqualTo(0.25));
    }
  });
}