using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.SceneManagement;


namespace Stary.Evo.FiniteStateMachine
{
    public static class FSMExtension
    {
        private static Dictionary<string, AbstractFSMController> _fsmControllers =
            new Dictionary<string, AbstractFSMController>();


        /// <summary>
        /// 创建FSMController
        /// </summary>
        /// <returns>返回创建的FSMController的识别Int值</returns>
        public static void CreateFSMController<T>(Transform parent) where T : AbstractFSMController
        {
            if (_fsmControllers.ContainsKey(typeof(T).Name))
            {
                Debug.LogError($"FSM控制器已存在！！！_key:{typeof(T).Name}");
            }
            else
            {
                GameObject newController = new GameObject($"{typeof(T).Name}");
                newController.transform.SetParent(parent);
                var controller = newController.AddComponent<T>();

                _fsmControllers.Add(typeof(T).Name, controller);
            }
        }

        /// <summary>
        /// 销毁指定FSMController
        /// </summary>
        /// <param name="controllerId"></param>
        public static void DestroyFSMController<T>() where T : AbstractFSMController
        {
            if (_fsmControllers.TryGetValue(typeof(T).Name, out var controller))
            {
                GameObject.Destroy(controller.gameObject);
                _fsmControllers.Remove(typeof(T).Name);
            }
            else
            {
                Debug.LogError("该Id的FSMController不存在或已被销毁！！！");
            }
        }
    }
}