// PlayerInteractController.cs
using System.Collections;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.InputSystem.Controls;

public class PlayerInteractController : MonoBehaviour
{
    // public KeyControl interactionKey = Keyboard.current.fKey; // 交互按键，默认为F
    public float interactionRange = 2f; // 交互检测范围
    public Transform interactPoint; // 交互检测的起点（通常是玩家相机或身体中心）

    private IInteractable currentInteractable; // 当前可交互的对象

    void Start()
    {
        StartCoroutine(PeriodicDetection());
    }
    void Update()
    {
        // 每帧检测附近的交互物
        // DetectInteractables();

        // 如果当前有可交互物体，且玩家按下了交互键
        if (currentInteractable != null && Keyboard.current.fKey.wasPressedThisFrame)
        {
            currentInteractable.OnInteract();
        }
    }
    private IEnumerator PeriodicDetection()
    {
        while (true)
        {
            DetectInteractables(); // 你的检测逻辑
            yield return new WaitForSeconds(0.1f); // 每0.1秒检测一次
        }
    }
    void DetectInteractables()
    {
        // 使用球形检测来查找范围内的所有碰撞体
        Collider[] hitColliders = Physics.OverlapSphere(interactPoint.position, interactionRange);
        IInteractable closestInteractable = null;
        float closestDistance = float.MaxValue;

        // 遍历所有碰撞体，找到最近的 IInteractable 对象
        foreach (var hitCollider in hitColliders)
        {
            IInteractable interactable = hitCollider.GetComponent<IInteractable>();
            if (interactable != null)
            {
                float distance = Vector3.Distance(interactPoint.position, hitCollider.transform.position);
                if (distance < closestDistance)
                {
                    closestDistance = distance;
                    closestInteractable = interactable;
                }
            }
        }

        // 如果当前交互对象发生了变化
        if (closestInteractable != currentInteractable)
        {
            // 通知旧物体退出范围
            if (currentInteractable != null)
            {
                currentInteractable.OnExitInteractionRange();
            }
            // 通知新物体进入范围
            if (closestInteractable != null)
            {
                closestInteractable.OnEnterInteractionRange();
            }
            // 更新当前交互对象
            currentInteractable = closestInteractable;
        }
    }

    // 在Scene视图中绘制交互范围，便于调试
    private void OnDrawGizmosSelected()
    {
        if (interactPoint != null)
        {
            Gizmos.color = Color.yellow;
            Gizmos.DrawWireSphere(interactPoint.position, interactionRange);
        }
    }
}