using UnityEngine;
using System;

namespace Beyond
{
    [Serializable]
    public class TeleportObject
    {
        [Tooltip("If custompossition is null and teleport is selected, the player is teleported to the camera position.")]
        public bool useTeleport;
        public GameObject playerObject;
        public Transform targetPosition;
        [Tooltip("Sets y rotation from camera to player, or if set, use customPosition rotation Y.")]
        public bool useCameraRotation;
        public bool detectGround;
        public LayerMask ground = 1;


        /// <summary>
        /// Teleport object do customPosition transform when targetPosition is null other wise teleport to customPosition.
        /// </summary>
        /// <param name="customPosition"></param>
        public void Teleport(Transform customPosition = null)
        {
            if (useTeleport && playerObject != null)
            {
                Vector3 teleportPosition = Vector3.zero;
                Quaternion teleportRotation = Quaternion.identity;
                float groundLevel = playerObject.transform.position.y;

                if (customPosition && targetPosition == null)
                {
                    teleportPosition = customPosition.position;
                    teleportRotation = customPosition.rotation;
                    groundLevel = customPosition.position.y;
                }
                else if (targetPosition != null)
                {
                    teleportPosition = targetPosition.transform.position;
                    teleportRotation = targetPosition.transform.rotation;
                    groundLevel = targetPosition.position.y;
                }

                if (detectGround)
                {
                    Ray ray = new Ray(teleportPosition + Vector3.up, Vector3.down);
                    if (Physics.Raycast(ray, out RaycastHit hit, float.MaxValue, ground, QueryTriggerInteraction.Ignore))
                    {
                        groundLevel = hit.point.y;
                    }
                }
                
                playerObject.transform.position = new Vector3(teleportPosition.x, groundLevel, teleportPosition.z);
                var rb = playerObject.GetComponent<Rigidbody>();
                if (rb)
                {
                    rb.position = playerObject.transform.position;
                    rb.linearVelocity = Vector3.zero;
                }
                //rotate player
                if (useCameraRotation)
                {
                    //cameraRotationStart = cameraRotationEnd;
                    var playerRotation = playerObject.transform.rotation;
                    playerRotation.y = teleportRotation.y;
                    playerObject.transform.rotation = playerRotation;
                }
            }
        }
    }
}