using System;
using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using UnityEngine;
using UnityEngine.SceneManagement;
using Object = UnityEngine.Object;

namespace ZC
{
    public static class CommonHelper
    {
        public static T FindChildDeep<T>(this Transform self, string name) where T : Object
        {
            Transform findDeep = null;
            FindDeep(self, name, ref findDeep);
            if (findDeep == null)
            {
                Debug.LogError("未找到此组件");
            }

            var component = findDeep.GetComponent<T>();
            return component;
        }

        static void FindDeep(Transform tran, string name, ref Transform transform)
        {
            if (tran.name == name)
            {
                transform = tran;
                return;
            }

            for (var i = 0; i < tran.childCount; i++)
            {
                FindDeep(tran.GetChild(i), name, ref transform);
            }
        }

        public static List<T> FindChildDeeps<T>(this Transform self) where T : Object
        {
            List<T> list = new List<T>();
            FindDeeps(self, ref list);
            if (list.Count <= 0)
            {
                Debug.LogError("未找到此组件");
            }

            return list;
        }

        static void FindDeeps<T>(Transform tran, ref List<T> list)
        {
            var component = tran.GetComponent<T>();
            if (component != null)
                list.Add(component);

            for (var i = 0; i < tran.childCount; i++)
            {
                FindDeeps(tran.GetChild(i), ref list);
            }
        }

        /// <summary>
        /// 判断是否在某个物体范围内（范围型判断，超出返回false）
        /// 基于MeshRender的实现方式
        /// </summary>
        /// <param name="tran"></param>
        /// <param name="self"></param>
        /// <returns></returns>
        public static bool IsInRangeAutoFix(Transform tran, Transform self)
        {
            var meshRenderer = tran.GetComponent<MeshRenderer>();

            Bounds rendererBounds = self.GetComponent<MeshRenderer>().bounds;
            Bounds colliderBounds = meshRenderer.bounds;
            bool rendererIsInsideBox = colliderBounds.Intersects(rendererBounds);

            return rendererIsInsideBox;
        }

        public static T GetOrAddComponent<T>(this GameObject go) where T : Component
        {
            if (go.TryGetComponent(typeof(T), out var component))
            {
                return (T)component;
            }

            return go.AddComponent<T>();
        }

        public static async UniTask<SceneGameObjectBinding> GetSceneBindingAsync(
            Action<SceneGameObjectBinding> callback = null)
        {
            SceneGameObjectBinding binding = null;
            while (binding == null)
            {
                await UniTask.Yield();
                Debug.Log("GetSceneBindingAsync");
                binding = GameObject.FindObjectOfType<SceneGameObjectBinding>();
            }

            callback?.Invoke(binding);
            return binding;
        }
    }
}