using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering.Universal;

public class AddSubCamera : MonoBehaviour
{
    // ⭐ 相机获取委托：由游戏侧(GameManager)注入，框架层不再反向依赖 GameManager
    public static Func<Camera> GetMainCamera;
    public static Func<Camera> GetBulletCamera;

    public Camera subCamera;

    [Tooltip("true=鱼的相机(插入到子弹锁定层cam之前);false=鱼死亡爆奖相机(加到列表末尾,默认)")]
    public bool isFishCamera = false;

    private void Awake()
    {
        if (subCamera==null)
        {
            subCamera = GetComponent<Camera>();
        }
    }
    private void Start()
    {
        Camera zhuCam = GetMainCamera != null ? GetMainCamera() : null;
        if (zhuCam == null)
        {
            Debug.LogWarning("[AddSubCamera] GetMainCamera 未注入，跳过相机栈配置");
            return;
        }

        UniversalAdditionalCameraData mainCameraData = zhuCam.GetUniversalAdditionalCameraData();

        if (isFishCamera)
        {
            // 鱼相机:插到子弹锁定层(子弹层相机)之前,即鱼和爆奖中间夹层的前面
            Camera cam = GetBulletCamera != null ? GetBulletCamera() : null;
            int index = cam != null ? mainCameraData.cameraStack.IndexOf(cam) : -1;
            if (index >= 0)
            {
                mainCameraData.cameraStack.Insert(index, subCamera);
            }
            else
            {
                mainCameraData.cameraStack.Add(subCamera);
            }
        }
        else
        {
            // 爆奖相机:直接加到列表末尾(cam子弹层保持在它前面)
            mainCameraData.cameraStack.Add(subCamera);
        }
    }
}