@using System
@using System.Threading.Tasks
@using Sandbox
@using Sandbox.UI
@inherits WebPanel

<style>
	/* .scss files don't work in libraries. https://github.com/Facepunch/sbox-issues/issues/4813 */
	prompt {
		width: 100%;
		pointer-events: all;
	}
</style>

@code {
	public readonly TaskCompletionSource<bool> Purchased;
	
	public Prompt( string URL )
	{
		Url = URL;
		Purchased = new TaskCompletionSource<bool>();

		if ( !Game.ActiveScene.Components.TryGet( out ScreenPanel panel ) )
		{
			panel = Game.ActiveScene.Components.Create<ScreenPanel>();
			panel.GetPanel().ElementName = "monetization";
			panel.ZIndex = int.MaxValue;
		}

		Parent = panel.GetPanel();
	}
	
	public override void OnDeleted()
	{
		if ( !Game.ActiveScene.Components.TryGet( out ScreenPanel panel ) )
		{
			return;
		}
		
		if ( panel.GetPanel().HasChildren )
		{
			return;
		}
		
		panel.Destroy();
	}

	protected override void OnAfterTreeRender( bool firstTime )
	{
		// This was the only way I could think of to get the
		// Steam browser to send data back data to the game.
		// If you have a better way let me know.
		
		switch ( Surface.PageTitle )
		{
			case "finished": Delete();
				break;
			case "purchased": Purchased.TrySetResult( true );
				break;
			case "cancelled": Purchased.TrySetResult( false );
				break;
		}
	}
	
	protected override int BuildHash() => HashCode.Combine( Surface.PageTitle );
}