using System;
using PlatformView = Tizen.NUI.BaseComponents.View;
 
namespace Microsoft.Maui.Handlers
{
	public partial class ViewHandler
	{
		static partial void MappingFrame(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapTranslationX(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapTranslationY(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapScale(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapScaleX(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapScaleY(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapRotation(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapRotationX(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapRotationY(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapAnchorX(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
 
		public static void MapAnchorY(IViewHandler handler, IView view)
		{
			UpdateTransformation(handler, view);
		}
		public static void MapContextFlyout(IViewHandler handler, IView view) { }
 
		public static void MapToolbar(IViewHandler handler, IView view)
		{
			if (handler.VirtualView is not IToolbarElement te || te.Toolbar == null)
				return;
 
			_ = handler.MauiContext ?? throw new InvalidOperationException($"{nameof(MauiContext)} should have been set by base class.");
 
			var platformToolbar = te.Toolbar?.ToPlatform(handler.MauiContext);
 
			if (handler.PlatformView is IToolbarContainer toolbarContainer)
			{
				toolbarContainer.SetToolbar((MauiToolbar)platformToolbar!);
			}
			else
			{
				handler.MauiContext.GetToolbarContainer()?.SetToolbar((MauiToolbar)platformToolbar!);
			}
		}
 
		internal static void MapToolbar(IElementHandler handler, IToolbarElement toolbarElement)
		{
			if (toolbarElement.Toolbar == null)
				return;
 
			_ = handler.MauiContext ?? throw new InvalidOperationException($"{nameof(handler.MauiContext)} null");
 
			var platformToolbar = toolbarElement.Toolbar?.ToPlatform(handler.MauiContext);
			handler.MauiContext.GetToolbarContainer()?.SetToolbar((MauiToolbar)platformToolbar!);
		}
 
		internal static void UpdateTransformation(IViewHandler handler, IView view)
		{
			handler.ToPlatform()?.UpdateTransformation(view);
		}
 
		protected virtual void OnPlatformViewDeleted()
		{
		}
 
		protected virtual void OnFocused()
		{
		}
 
		protected virtual void OnUnfocused()
		{
		}
 
		protected void OnFocused(object? sender, EventArgs e)
		{
			if (VirtualView != null)
			{
				VirtualView.IsFocused = true;
			}
			OnFocused();
		}
 
		protected void OnUnfocused(object? sender, EventArgs e)
		{
			if (VirtualView != null)
			{
				VirtualView.IsFocused = false;
			}
			OnUnfocused();
		}
 
		partial void ConnectingHandler(PlatformView? platformView)
		{
			if (platformView == null)
				return;
 
			platformView.FocusGained += OnFocused;
			platformView.FocusLost += OnUnfocused;
		}
 
#pragma warning disable CA1822 // Mark members as static; Disabling, can't make this static without making the other partial implementations static
		partial void DisconnectingHandler(PlatformView platformView)
		{
			if (platformView == null)
				return;
		}
#pragma warning restore CA1822
 
		void OnPlatformViewDeleted(object? sender, EventArgs e)
		{
			OnPlatformViewDeleted();
		}
	}
}