using UnityEngine;
using Share;
using System;
using Input;

namespace Gameplay.Player
{
    public class PlayerInteractorController : MonoBehaviour
    {
        [SerializeField] private float interactRange = 15f;
        [SerializeField] private LayerMask interactableLayer;
        [SerializeField] private Camera playerCamera;

        private IInteractable currentTarget;

        void Start()
        {
            playerCamera = GameObject.FindWithTag("MainCamera").GetComponent<Camera>();
        }

        void Update()
        {
            DetectInteractable();

            if (currentTarget != null && InputManager.Instance.InteractPressed)
            {
                currentTarget.Interact(this.gameObject);
            }
        }

        void DetectInteractable()
        {
            Ray ray = new Ray(playerCamera.transform.position, playerCamera.transform.forward);
            if (Physics.Raycast(ray, out RaycastHit hit, interactRange, interactableLayer))
            {
                currentTarget = hit.collider.GetComponent<IInteractable>();
                if (currentTarget != null)
                {
                    // 这里可以显示交互提示UI，例如 “E - 开门”
                    Debug.Log(currentTarget.GetInteractPrompt());
                }
            }
            else
            {
                currentTarget = null;
            }
        }
        
        void OnDrawGizmos()
        {
            if (playerCamera == null) return;
            Gizmos.color = Color.green;
            Vector3 origin = playerCamera.transform.position;
            Vector3 direction = playerCamera.transform.forward * interactRange;
            Gizmos.DrawLine(origin, origin + direction);
        }
    }
}