using System.Collections.Generic;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;

#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
#endif

namespace Xamarin.Forms.Controls.Issues
{
	[Preserve(AllMembers = true)]
	[Issue(IssueTracker.Bugzilla, 47923, "Vectors don\'t work in Images, and work badly in Buttons", PlatformAffected.Android)]
	public class Bugzilla47923 : TestNavigationPage // or TestMasterDetailPage, etc ...
	{
		protected override void Init()
		{
			PushAsync(new LandingPage());
		}
	}

	public class VectorImagePage : ContentPage
	{
		public VectorImagePage(Aspect aspect)
		{
			var scrollView = new ScrollView();
			var stackLayout = new StackLayout
			{
				Orientation = StackOrientation.Vertical,
				Spacing = 10
			};

			var vectors = new[] { "cartman", "heart", "error" };

			for (var i = 0; i < vectors.Length; i++)
			{
				for (var j = 0; j < 3; j++)
				{
					var image = new Image
					{
						Source = vectors[i],
						WidthRequest = j == 1 ? 150 : 300,
						HeightRequest = j == 2 ? 150 : 300,
						BackgroundColor = i == 0 ? Color.Red : (i == 1 ? Color.Green : Color.Yellow),
						HorizontalOptions = LayoutOptions.Center,
						Aspect = aspect
					};
					stackLayout.Children.Add(image);
				}
			}

			scrollView.Content = stackLayout;
			Content = scrollView;
		}
	}

	public class CellViewPage : ContentPage
	{
		public CellViewPage()
		{
			var list = new List<int>();
			for (var i = 0; i < 50; i++)
				list.Add(i);

			var listView = new ListView
			{
				ItemsSource = list,
				ItemTemplate = new DataTemplate(() => new ImageCell { ImageSource = "cartman" })
			};

			Content = listView;
		}
	}

	public class LandingPage : ContentPage
	{
		public LandingPage()
		{
			var scrollView = new ScrollView();
			var stackLayout = new StackLayout
			{
				Orientation = StackOrientation.Vertical,
				HorizontalOptions = LayoutOptions.Center,
				VerticalOptions = LayoutOptions.Center,
				Spacing = 10
			};

			var button1 = new Button
			{
				Text = "AspectFit",
				Command = new Command(() => { Navigation.PushAsync(new VectorImagePage(Aspect.AspectFit)); }),
				HorizontalOptions = LayoutOptions.Center
			};
			stackLayout.Children.Add(button1);

			var button2 = new Button
			{
				Text = "AspectFill",
				Command = new Command(() => { Navigation.PushAsync(new VectorImagePage(Aspect.AspectFill)); }),
				HorizontalOptions = LayoutOptions.Center
			};
			stackLayout.Children.Add(button2);

			var button3 = new Button
			{
				Text = "Fill",
				Command = new Command(() => { Navigation.PushAsync(new VectorImagePage(Aspect.Fill)); }),
				HorizontalOptions = LayoutOptions.Center
			};
			stackLayout.Children.Add(button3);

			var button4 = new Button
			{
				Text = "Test cell views",
				Command = new Command(() => { Navigation.PushAsync(new CellViewPage()); }),
				HorizontalOptions = LayoutOptions.Center
			};
			stackLayout.Children.Add(button4);

			scrollView.Content = stackLayout;
			Content = scrollView;
		}
	}
}