using MMMaellon.LightSync;
using UdonSharp;
using UnityEngine;
using VRC.SDKBase;
using VRC.Udon;


[UdonBehaviourSyncMode(BehaviourSyncMode.Manual)]
public class CameraAnchor : UdonSharpBehaviour
{
	[SerializeField] private float FOV = 60.0f;
	[SerializeField] private float NearClippingPlane = 0.3f;
	[SerializeField] private float FarClippingPlane = 1000.0f;
	[Space]
	[Tooltip("Changing the Z scale of this object will change the FOV of the attached camera.")]
	[SerializeField] private Transform CameraRoot;

	private Camera _AttachedCamera = null;


	void LateUpdate()
	{
		if (_AttachedCamera)
		{
			if (CameraRoot.childCount <= 0)
			{
				_AttachedCamera = null;
			}
			else
			{
				_AttachedCamera.fieldOfView = FOV * CameraRoot.transform.localScale.z;
			}
		}
	}


	public void AttachCamera(Camera CameraComponent)
	{
		_AttachedCamera = CameraComponent;
		_AttachedCamera.gameObject.SetActive(true);
		_AttachedCamera.transform.parent = CameraRoot;
		_AttachedCamera.fieldOfView = FOV;
		_AttachedCamera.nearClipPlane = NearClippingPlane;
		_AttachedCamera.farClipPlane = FarClippingPlane;
		_AttachedCamera.GetComponent<LightSync>().TeleportToLocalSpace(Vector3.zero, Quaternion.identity, true);
	}


#if UNITY_EDITOR
	private void OnDrawGizmos()
	{
		Gizmos.DrawIcon(transform.position, "CameraAnchor", true);
	}
#endif
}