using System;
using System.Collections.Generic;
using Thousandto.Cfg.Data;

using Thousandto.Code.Center;
using Thousandto.Core.Asset;
using Thousandto.Core.Base;
using UnityEngine;
using Thousandto.Code.Global;

namespace Thousandto.Code.Logic
{
    //buff
    public class Buff
    {
        #region//私有变量
        private FGameObjectVFX _vfxID = null;
        private float _delayTime = 0f;
        #endregion

        #region//属性
        //配置ID
        public int DataID { get; private set; }
        //叠加层数
        public int CurLevel { get; private set; }
        //剩余时间
        public float RemainTime { get; private set; }
        //参数列表
        public List<int> Args { get; private set; }
        //增加此buff的时间。用于计算buff剩余时间
        public float SyncTime { get; private set; } 
        public ulong OwenId { get; private set; }
        public DeclareBuff Cfg { get; private set; }
        //当前剩余时间
        public float CurRemainTime
        {
            get
            {
                return RemainTime - (Time.realtimeSinceStartup - SyncTime);
            }
        }
        #endregion

        #region//公有函数
        //刷新buff数据
        public void RefreshData(ulong ownerID, DeclareBuff cfg, MSG_Common.Buff buff)
        {
            OwenId = ownerID;
            DataID = buff.buffId;
            CurLevel = buff.curLevel;
            Cfg = cfg;
            RemainTime = buff.remainTime;
            Args = buff.args;
            SyncTime = Time.realtimeSinceStartup;
        }

        //处理buff增加事件，增加buff特效
        public void DoAdd(bool delay)
        {
            _delayTime = 0f;
            if (delay && Cfg.DTime > 0)
            {
                _delayTime = Cfg.DTime / 1000f;
            }
            else
            {
                DoBuffVisualAdd();
                AddBuffSpecial();
            }
        }

        //增加buff的外观显示
        public void DoBuffVisualAdd(Character inOwner = null)
        {
            DeleteBuffVfx();
            Character owner = null;
            if (inOwner != null)
            {
                owner = inOwner;
            }
            else
            {
                owner = GameCenter.GameSceneSystem.FindEntity<Character>(OwenId);
            }
            //判断特效开关
            if (owner != null && GameObjectLimit.CanPlayVfx(owner, ModelTypeCode.BuffVFX))
            {
                if (Cfg.BuffVfx > 0)
                {
                    _vfxID = owner.Skin.PlayVFX(ModelTypeCode.BuffVFX, Cfg.BuffVfx, SlotUtils.GetSlotName((Slot)Cfg.VfxSlot), FSkinPartCode.Body, true, Cfg.VfxScal / 100.0f, true);
                }
            }
            
            if (Cfg.Wenzi != 0 && owner != null)
            {
                GameCenter.PushFixEvent(LogicEventDefine.EID_EVENT_HUD_POPUP_BUFFNAME, this);
            }
        }

        //增加buff的特殊效果展示
        public void AddBuffSpecial(Character inOwner = null)
        {
            Character owner = null;
            if (inOwner != null)
            {
                owner = inOwner;
            }
            else
            {
                owner = GameCenter.GameSceneSystem.FindEntity<Character>(OwenId);
            }
            OnAddBuffSpecial(owner);
        }

        //处理buff删除事件，删除buff特效
        public void DoDelete()
        {
            DeleteBuffVfx();
            DeleteBuffSpecial();
        }

        //删除buff特效
        public void DeleteBuffVfx()
        {
            if (_vfxID != null)
            {
                _vfxID.Destroy();
                _vfxID = null;
            }
        }

        public void DeleteBuffSpecial()
        {
            Character owner = GameCenter.GameSceneSystem.FindEntity<Character>(OwenId);
            OnDeleteBuffSpecial(owner);
        }

        //更新
        public void Update()
        {
            OnUpdate();
        }
        #endregion

        #region//子类继承
        protected virtual void OnAddBuffSpecial(Character inOwner = null)
        {

        }

        protected virtual void OnDeleteBuffSpecial(Character owner)
        {

        }

        protected virtual void OnUpdate()
        {
            if (_delayTime > 0 && (Time.realtimeSinceStartup - SyncTime) > _delayTime)
            {
                DoBuffVisualAdd();
                AddBuffSpecial();
                _delayTime = 0f;
            }
        }
        #endregion
    }
}