using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Ether
{
    public class EntityManager : SingletonAutoMono<EntityManager>
    {
        Dictionary<string, Entity> allEntityDic = new Dictionary<string, Entity>();

        public void AddEntity(Entity entity)
        {
            if (string.IsNullOrEmpty(entity.key))
            {
                return;
            }

            if (allEntityDic.TryGetValue(entity.key, out Entity saveKeyEntity))
            {
                Debug.LogError($"有重复EntityKey:{entity.key}, 有重复EntityName:{entity.name}，字典中的EntityName:{saveKeyEntity.name}");
                return;
            }

            allEntityDic.Add(entity.key, entity);
        }

        public void RemoveEntity(Entity entity)
        {
            if (allEntityDic.ContainsKey(entity.key))
            {
                allEntityDic.Remove(entity.key);
            }
        }


        public void RemoveEntity(string key)
        {
            if (allEntityDic.TryGetValue(key, out Entity entity))
            {
                RemoveEntity(entity);
            }
        }

        public Entity GetEntity(string key)
        {
            if (allEntityDic.TryGetValue(key, out Entity saveEntity))
            {
                return saveEntity;
            }

            return null;
        }

        public override void Clear()
        {
            allEntityDic.Clear();
        }

        public void CheckEmptyEntity()
        {
            List<string> removeIds = new List<string>();

            foreach (var entityPair in allEntityDic)
            {
                if (entityPair.Value == null)
                {
                    removeIds.Add(entityPair.Key);
                }
            }

            for (int i = 0; i < removeIds.Count; i++)
            {
                RemoveEntity(removeIds[i]);
            }
        }


        private void OnDestroy()
        {
            Clear();
        }
    }
}