using System.Collections.Generic;
using Gameplay.Common;
using PhxhSDK;
using UnityEngine;
using Constants = Framework.Constants;

namespace Gameplay.Other.HeadCamera
{
    public class UnitHeadCamera
    {
        public RenderTexture rt;
        private GameObject _cameraObj;

        public const int RT_WIDTH = 173;
        public const int RT_HEIGHT = 206;

        public void Init(Transform parent)
        {
            rt = new RenderTexture(RT_WIDTH, RT_HEIGHT, (int)RenderTextureFormat.Depth);
            
            _Protected(parent);

            var sampleObj = AssetManager.Instance.GetPreLoadResult<GameObject>(PathDefine.Story.STORY_HEAD_CAMERA_PATH);
            var cameraObj = Object.Instantiate(sampleObj, parent);
            cameraObj.transform.ResetLocals();
            var rawCamera = cameraObj.GetComponentInChildren<Camera>();
            rawCamera.targetTexture = rt;
            _cameraObj = cameraObj;
            _cameraObj.SetActive(false);
        }

        private void _Protected(Transform parent)
        {
            _TryDeleteCamera(parent);
        }

        private void _TryDeleteCamera(Transform parent)
        {
            var transList = new List<Transform>();
            for (int i = 0; i < parent.childCount; i++)
            {
                var child = parent.GetChild(i);
                if (child.name.Equals("head_camera_neck(Clone)"))
                {
                    transList.Add(child);
                }
            }

            for (int i = 0; i < transList.Count; i++)
            {
                var trans = transList[i];
                if (UnityEngine.Application.isPlaying)
                {
                    Object.Destroy(trans.gameObject);
                }
                else
                {
                    Object.DestroyImmediate(trans.gameObject);
                }
            }
            
        }

        public void Dispose()
        {
            rt.Release();
            rt = null;

            Object.Destroy(_cameraObj);
            _cameraObj = null;
        }

        public void Show()
        {
            _cameraObj.SetActive(true);
        }

        public void Hide()
        {
            _cameraObj.SetActive(false);
        }
    }
}