using System;
using System.Linq;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;

#if UITEST
using Xamarin.Forms.Core.UITests;
using Xamarin.UITest;
using NUnit.Framework;
#endif

namespace Xamarin.Forms.Controls.Issues
{
#if UITEST
	[Category(UITestCategories.ListView)]
#endif

	[Preserve (AllMembers = true)]
	[Issue (IssueTracker.Bugzilla, 32462, "Crash after a page disappeared if a ScrollView is in the HeaderTemplate property of a ListView", PlatformAffected.Android)]
	public class Bugzilla32462 : TestContentPage // or TestMasterDetailPage, etc ...
	{
		[Preserve (AllMembers = true)]
		public class ListViewPage : ContentPage
		{
			public ListViewPage ()
			{
				var scrollview = new ScrollView {
					Orientation = ScrollOrientation.Horizontal,
					Content = new Label { Text = "some looooooooooooooooooooooooooooooooooooooooooooooooooooooog text" }
				};
				var stacklayout = new StackLayout ();
				stacklayout.Children.Add (scrollview);
				string[] list = Enumerable.Range (0, 40).Select (c => $"some text {c}").ToArray ();
				var listview = new ListView { AutomationId = "listview", Header = stacklayout, ItemsSource = list };
				Content = listview;

				listview.ScrollTo (list[39], ScrollToPosition.Center, false);
			}
		}

		protected override void Init ()
		{
			var button = new Button {
				Text = "Click!",
			};
			button.Clicked += (object sender, EventArgs e) => Navigation.PushAsync (new ListViewPage ());
			Content = button;
		}

#if UITEST
		[Test]
		public void Bugzilla36729Test ()
		{
			RunningApp.WaitForElement (q => q.Marked ("Click!"));
			RunningApp.Tap (q => q.Marked ("Click!"));
			RunningApp.WaitForElement (q => q.Marked ("listview"));
			RunningApp.WaitForElement (q => q.Marked ("some text 35"));
			RunningApp.Back ();
		}
#endif
	}
}