using Sandbox;
using System.Linq;
namespace VeloX;

internal sealed class WheelManager : GameObjectSystem
{


	public WheelManager( Scene scene ) : base( scene )
	{
		if ( Application.IsDedicatedServer )
			return;

		Listen( Stage.StartFixedUpdate, -99, UpdateWheels, "UpdateWheels" );
		Listen( Stage.StartFixedUpdate, -100, UpdateEngine, "UpdateEngine" );
	}

	private void UpdateWheels()
	{
		if ( !Game.IsPlaying || Scene.IsEditor )
			return;
		//Stopwatch sw = Stopwatch.StartNew();

		var wheels = Scene.GetAll<VeloXWheel>();
		if ( !wheels.Any() ) return;

		var timeDelta = Time.Delta;
		//Sandbox.Utility.Parallel.ForEach( wheels, item =>
		//{
		//	if ( !item.IsProxy && item.IsValid() )
		//		item.DoPhysics( timeDelta );
		//} );
		foreach ( var item in wheels )
			if ( item.IsValid() && !item.IsProxy )
				item.DoPhysics( timeDelta );

		foreach ( var wheel in wheels )
			if ( wheel.IsValid() && !wheel.IsProxy)
				wheel.UpdateForce();

		//sw.Stop();

		//DebugOverlaySystem.Current.ScreenText( new Vector2( 120, 30 ), $"Wheel Sim: {sw.Elapsed.TotalMilliseconds,6:F2} ms", 24 );
	}
	private void UpdateEngine()
	{
		if ( !Game.IsPlaying || Scene.IsEditor )
			return;
		//Stopwatch sw = Stopwatch.StartNew();

		var engines = Scene.GetAll<Engine>();
		if ( !engines.Any() ) return;

		var timeDelta = Time.Delta;
		//Sandbox.Utility.Parallel.ForEach( engines, item =>
		//{
		//	foreach ( var wheel in engines )
		//		if ( !wheel.IsProxy && wheel.IsValid() )
		//			wheel.UpdateEngine( timeDelta );
		//} );
		foreach ( var wheel in engines )
			if ( wheel.IsValid() )
				wheel.UpdateEngine( timeDelta );


		//sw.Stop();

		//DebugOverlaySystem.Current.ScreenText( new Vector2( 120, 54 ), $"Engine Sim: {sw.Elapsed.TotalMilliseconds,6:F2} ms", 24 );
	}
}