using CommonAI.Zone;
using System.Collections.Generic;
using XmdsCommon.Plugin;
using UnityEngine;

namespace ET.Client
{
    [Event]
    [FriendOfAttribute(typeof(ET.Client.UnitRenderComponet))]
    public class BuffChangeEventHandler : BEvent<EventType.BuffChangeEvent>
    {
        protected override async ETTask OnEvent(EventType.BuffChangeEvent args)
        {
            BattleUnit unit = UnitMgr.Instance.GetUnit(args.ObjectId) as BattleUnit;
            if (unit == null)
            {
                Log.Error($"buff unit not exist: {args.ObjectId}");
                return;
            }
            var unitRender = ModelViewComponent.Instance.GetChild<UnitRenderComponet>(args.ObjectId);
            if (unitRender == null)
            {
                Log.Debug($"buff unitrender not exist: {args.ObjectId}");
                return;
            }

            //Log.Debug($"Buff({args.Buff?.BuffID}) {args.Type} @{unit.ZUnit.TemplateID}");

            if (args.Type == EventType.BuffChangeEvent.BuffOP.Add)
            {
                BuffTemplate bt = args.Buff.Data;
                if (bt.MakeAvatar)
                {
                    //TODO: 支持BUFF变身
                    Log.Error("Not implements MakeAvatar");
                }
                AddBuff(args.Buff, unitRender, unit).Coroutine();
            }
            else if (args.Type == EventType.BuffChangeEvent.BuffOP.Remove)
            {
                BuffTemplate bt = args.Buff.Data;
                RemoveBuff(bt, unitRender);
            }
            else if (args.Type == EventType.BuffChangeEvent.BuffOP.Change)
            {
                BuffTemplate bt = args.Buff.Data;
                //随BUFF状态变更，表现特效不同时.
                if ((bt.BindingEffectList != null && bt.BindingEffectList.Count > 0) ||
                    (bt.OverlayBindingEffect != null && bt.OverlayBindingEffect.Count > 0))
                {
                    var buff = args.Buff;
                    if ((buff.OverlayLevel >= 0 && buff.OverlayLevel < bt.BindingEffectList.Count) ||
                        (buff.BuffExtendData > 0 && buff.OverlayLevel < bt.OverlayBindingEffect.Count))
                    {
                        RemoveBuff(bt, unitRender);
                        AddBuff(buff, unitRender, unit).Coroutine();
                    }
                }
            }
            else if (args.Type == EventType.BuffChangeEvent.BuffOP.Reload)
            {
                var list = unit.ZUnit.AllBuffs;
                list.ForEach((CommonAI.ZoneClient.ZoneUnit.BuffState buff) =>
                {
                    AddBuff(buff, unitRender, unit).Coroutine();
                });
            }

            MergeBuffStatus(unit, unitRender);
            await ETTask.CompletedTask;
        }

        private async ETTask AddBuff(CommonAI.ZoneClient.ZoneUnit.BuffState buff, UnitRenderComponet unitRender, BattleUnit unit)
        {
            BuffTemplate bt = buff.Data;

            //优先判断是否有叠层效果.
            LaunchEffect le = null;
            string key = bt.TemplateID.ToString();
            //string effectName = "";
            if (bt.OverlayBindingEffect != null && bt.OverlayBindingEffect.Count > 0)
            {
                if (buff.BuffExtendData > 0)
                {
                    le = bt.OverlayBindingEffect[buff.OverlayLevel];
                    if (le.RType != LaunchEffect.RunType.Cycle_BindName) return;

                    /*/超出最大层数，把最早的给移除掉
                    if (WordRainRecorderQueue.Count > 0 && WordRainRecorderQueue.Count >= me.Data.MaxOverlay)
                    {
                        string effectKey = WordRainRecorderQueue.Dequeue();
                        int effectStop;
                        if (BuffEffects.TryGetValue(effectKey, out effectStop))
                        {
                            BuffEffects.RemoveByKey(effectKey);
                            StopEffect(effectStop);
                        }
                    }

                    if (le.CricleMode != null)
                    {
                        WordRainRecorder += 1;
                        key = bt.TemplateID.ToString() + "_" + me.BuffExtendData.ToString() + "_" + WordRainRecorder.ToString();
                        WordRainRecorderQueue.Enqueue(key);
                        if (le.CricleMode.EffectName != null && le.CricleMode.EffectName.Length > me.BuffExtendDataIndex - 1 && me.BuffExtendDataIndex > 0)
                        {
                            effectName = le.CricleMode.EffectName[me.BuffExtendDataIndex - 1];
                        }
                    }*/
                }
                else
                {
                    le = bt.OverlayBindingEffect[buff.OverlayLevel];
                }
            }
            else
            {
                le = bt.BindingEffect;
            }

            if (le != null)
            {
                if (!unitRender.BuffEffects.ContainsKey(key))
                {
                    uint id = await EffectMgr.Instance.PlayEffect(le, unit.Id, Vector3.zero);
                    unitRender.BuffEffects.Add(key, id);
                }
                else
                {
                    EffectMgr.Instance.ResetEffect(unit.Id);
                }
            }

            if (bt.BindingEffectList.Count > 0)
            {
                System.Action<LaunchEffect, byte, byte, int, int> PlayBindingEffect = async (buff, overLayer, maxOverLayer, templateID, index) =>
                {
                    string _bkey = string.Format("{0}_{1}", templateID, index);
                    if (buff == null || unitRender.BuffEffects.ContainsKey(_bkey)) return;

                    //uint id = PlayEffect(buff, false, -1, "", overLayer, maxOverLayer);
                    uint id = await EffectMgr.Instance.PlayEffect(buff, unit.Id, Vector3.zero);
                    unitRender.BuffEffects.Add(_bkey, id);
                };

                if (bt.PlayType == BuffTemplate.BindingPlayType.All)
                {
                    for (int i = 0; i < bt.BindingEffectList.Count; i++)
                    {
                        le = bt.BindingEffectList[i];
                        PlayBindingEffect(le, buff.OverlayLevel, bt.MaxOverlay, bt.TemplateID, i);
                    }
                }
                else if (bt.PlayType == BuffTemplate.BindingPlayType.AppointOverLayer)
                {
                    if (buff.OverlayLevel >= bt.BindingEffectList.Count) return;

                    le = bt.BindingEffectList[buff.OverlayLevel];
                    PlayBindingEffect(le, buff.OverlayLevel, bt.MaxOverlay, bt.TemplateID, buff.OverlayLevel);
                }
                else if (bt.PlayType == BuffTemplate.BindingPlayType.IncludeOverLayer)
                {
                    for (int i = 0; i < bt.BindingEffectList.Count; i++)
                    {
                        if (buff.OverlayLevel >= i)
                        {
                            le = bt.BindingEffectList[i];
                            PlayBindingEffect(le, buff.OverlayLevel, bt.MaxOverlay, bt.TemplateID, i);
                        }
                        else
                        {
                            break;
                        }
                    }
                }
            }
        }

        private void RemoveBuff(BuffTemplate bt, UnitRenderComponet unitRender)
        {
            var BuffEffects = unitRender.BuffEffects;
            if (BuffEffects != null)
            {
                uint effectStop = 0;
                string key = bt.ID.ToString();
                if (BuffEffects.TryGetValue(key, out effectStop))
                {
                    BuffEffects.RemoveByKey(key);
                    EffectMgr.Instance.RemoveEffect(effectStop);
                }

                if (bt.BindingEffectList.Count > 0)
                {
                    string key2 = null;
                    for (int i = 0; i < bt.BindingEffectList.Count; i++)
                    {
                        key2 = string.Format("{0}_{1}", key, i);
                        if (BuffEffects.TryGetValue(key2, out effectStop))
                        {
                            BuffEffects.RemoveByKey(key2);
                            EffectMgr.Instance.RemoveEffect(effectStop);
                        }
                    }
                }
            }
        }

        private void MergeBuffStatus(BattleUnit unit, UnitRenderComponet unitRender)
        {
            bool bFrozen = false;
            bool bStealth = false;
            bool bNothingess = false;
            var list = unit.ZUnit.AllBuffs;
            list.ForEach((CommonAI.ZoneClient.ZoneUnit.BuffState buff) =>
            {
                var ablist = (buff.Data.Properties as XmdsBuffProperties).BuffAbilityList;
                if (ablist != null)
                {
                    foreach (var ab in ablist)
                    {
                        //TODO: 支持BUFF的冰冻、草丛、虚无效果
                        if (ab.ability == XmdsBuffProperties.XmdsBuffAbility.FROZEN ||
                            ab.ability == XmdsBuffProperties.XmdsBuffAbility.Fridge)
                        {
                            bFrozen = true;
                        }
                        else if (ab.ability == XmdsBuffProperties.XmdsBuffAbility.Stealth)
                        {
                            bStealth = true;
                            //判断是不是在墙角，在墙角只更新currentMat，否则修改材质和currentMat
                            /*foreach (var item in this.GameObject.GetComponentsInChildren<MaterialManager>())
                            {
                                item.AddMatState(StateMaterial.HIDDING);
                            }*/
                        }
                        else if (ab.ability == XmdsBuffProperties.XmdsBuffAbility.Nothingness)
                        {
                            bNothingess = true;
                            //this.HideSelf(true);
                        }
                    }
                }
            });

            if (bFrozen)
            {
                unitRender.PauseAnimation();
                unitRender.SetFrozen();
            }
            else
            {
                unitRender.ResumeAnimation();
                unitRender.ClearFrozen();

                if (bStealth)
                {
                }
                else
                {
                    if (bNothingess)
                    {

                    }
                }
            }

        }
    }

}