// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:flutter_api_samples/widgets/widget_state/widget_state_border_side.0.dart'
    as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  Finder findByBorderColor(Color color) {
    return find.byWidgetPredicate((Widget widget) {
      if (widget is! Material) {
        return false;
      }

      final ShapeBorder? shape = widget.shape;
      return shape is OutlinedBorder && shape.side.color == color;
    });
  }

  testWidgets('FilterChip displays the blue colored border when hovered', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(const example.WidgetStateBorderSideExampleApp());

    // Hover over the FilterChip.
    final TestGesture gesture = await tester.createGesture(
      kind: PointerDeviceKind.mouse,
    );
    await gesture.moveTo(tester.getCenter(find.byType(FilterChip)));

    await tester.pumpAndSettle();

    expect(findByBorderColor(Colors.blue), findsOneWidget);
  });

  testWidgets('FilterChip displays the green colored border when pressed', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(const example.WidgetStateBorderSideExampleApp());

    // Press on the FilterChip.
    final TestGesture gesture = await tester.createGesture();
    await gesture.down(tester.getCenter(find.byType(FilterChip)));

    await tester.pumpAndSettle();

    expect(findByBorderColor(Colors.green), findsOneWidget);
  });

  testWidgets('FilterChip displays the red colored border when selected', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(const example.WidgetStateBorderSideExampleApp());

    expect(findByBorderColor(Colors.red), findsOneWidget);
  });

  testWidgets(
    'FilterChip displays the correct border color when not selected',
    (WidgetTester tester) async {
      await tester.pumpWidget(const example.WidgetStateBorderSideExampleApp());

      await tester.tap(find.byType(FilterChip));
      await tester.pumpAndSettle();

      final ThemeData theme = Theme.of(tester.element(find.byType(FilterChip)));

      // FilterChip's border color defaults to ColorScheme.outlineVariant.
      expect(
        findByBorderColor(theme.colorScheme.outlineVariant),
        findsOneWidget,
      );
    },
  );
}
