using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Threading.Channels;
using System.Threading.Tasks;
using VeloX;

namespace Sandbox
{
	internal class LocalCar : Component, Component.INetworkListener
	{
		void INetworkListener.OnDisconnected( Connection channel )
		{
			if ( Car?.ConnectionID == channel.Id )
				DestroyGameObject();
		}

		[Property] VeloXCar Car { get; set; }
		[Property] public Vector3 CameraOffset { get; set; }

		public float blendSpeed = 10f;
		private Angles EyeAngles = new( 0, 180, 0 );
		private Rotation targetRotation;

		protected override void OnUpdate()
		{
			if ( !Car.IsDriver )
				return;
			UpdateEyeAngles();
			CameraSetup();
		}

		private void UpdateEyeAngles()
		{

			Angles input = Input.AnalogLook;
			Angles eyeAngles = EyeAngles;
			eyeAngles += input.WithPitch( -input.pitch );
			eyeAngles.roll = 0f;

			eyeAngles.pitch = eyeAngles.pitch.Clamp( 0f - 89, 89 );

			EyeAngles = eyeAngles;
		}

		protected void CameraSetup()
		{

			var cam = Scene.Camera;

			var zoffset = Vector3.Up * CameraOffset.z;
			Vector3 targetPos = WorldPosition + zoffset + WorldRotation * EyeAngles * CameraOffset;
			float blendFactor = blendSpeed * Time.Delta;
			blendFactor = MathF.Min( blendFactor, 1f );
			cam.WorldPosition = Vector3.Lerp( cam.WorldPosition, targetPos, blendFactor );

			Vector3 lookDirection = WorldPosition + zoffset - cam.WorldPosition;
			if ( lookDirection != Vector3.Zero )
				targetRotation = Rotation.LookAt( lookDirection, Vector3.Up );

			cam.WorldRotation = targetRotation;
		}
	}
}