using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Pool;
namespace BITKit
{
    [System.Serializable]
    public class UnityPool<T> where T : Component
    {
        public UnityPool()
        {
            this.pool = new(Spawn, OnGet, OnReturn, OnDestroy, maxSize: 16);
        }
        [Header(Constant.Header.Prefabs)]
        public T prefab;
        [Header(Constant.Header.Gameobjects)]
        public Transform root;
        [Header(Constant.Header.InternalVariables)]
        ObjectPool<T> pool;
        public T Get(T element = null, Transform root = null)
        {
            if (element is not null)
                prefab = element;
            if (root is not null)
                this.root = root;
            return pool.Get();
        }
        public void Return(T element) => pool.Release(element);
        T Spawn() => Transform.Instantiate(prefab, root);
        void OnGet(T element) => element.gameObject.SetActive(true);
        void OnReturn(T element) => element.gameObject.SetActive(false);
        void OnDestroy(T element) => GameObject.Destroy(element.gameObject);
    }
}