local Base = require("Battle/Logic/Level/LevelFunction/LevelFunction")
local ExpelMonsterLevelFunction = class("ExpelMonsterLevelFunction",Base)

function ExpelMonsterLevelFunction:GetExpClass()
    return require "Battle/Expression/ExpLevel/ExpLevelFunction/ExpExpelMonsterLevelFunction"
end

function ExpelMonsterLevelFunction:InitLevel()
    Base.InitLevel(self)
    self.dontIgnoreEnemy = true
    self.dmgToBoss = FP.newV1(0)
end

function ExpelMonsterLevelFunction:CurLevelCanSwitchHeroByCmd(fromEntity, index)
	return index == 2
end

function ExpelMonsterLevelFunction:HandleSwitchHeroData(heroEntitys, fromEntity, switchToIndex, toEntity, playerID, isOriginalArmy)
	if switchToIndex == 2 then
		if heroEntitys[3] and heroEntitys[3]:IsAlive() then
			-- 不调用Base
			heroEntitys[3]:SetIndex(2) 
			heroEntitys[2] = heroEntitys[3]
			heroEntitys[3] = fromEntity
		    fromEntity:SetIndex(3)
		    heroEntitys[1] = toEntity
		    toEntity:SetIndex(1)

		    --如果是初始阵容，那么PlayerArmyTable顺序也改变，这里HeroArmyTable起到的作用是记录顺序，方便切换阵容后恢复回来保证顺序跟切换前一致
		    local army = LevelPlayerManager.GetPlayerArmyByPlayerIDInRoom(playerID)
		    local fromHeroArmy = army[1]
		    local toHeroArmy = army[2]
		    army[2] = army[3]
		    army[3] = fromHeroArmy
		    army[1] = toHeroArmy
		else
			--三号位已经死亡，此时走基类逻辑
			Base.HandleSwitchHeroData(self, heroEntitys, fromEntity, switchToIndex, toEntity, playerID, isOriginalArmy)
		end
	else
		Base.HandleSwitchHeroData(self, heroEntitys, fromEntity, switchToIndex, toEntity, playerID, isOriginalArmy)
		logging.error(LTAG.ERROR, "HYW : 警告！试图在恶兽驱役玩法中切换到非2号位英雄！")
	end
end

function ExpelMonsterLevelFunction:GetInitAutoFightState()
	--这个玩法一开始不开启自动战斗
	return false
end

function ExpelMonsterLevelFunction:OnHpChange(entity, caster, delta, op, realDelta)
	if delta < FP.Const.Zero and caster then
		local originEntity = caster:GetOriginEntity()
		if entity:IsBoss() and originEntity:IsHero() then
			self.dmgToBoss:Sub(delta)
		end
	end
end


function ExpelMonsterLevelFunction:GetBossHpLeftPercent()
	return self.bossHpLeft or 1
end

function ExpelMonsterLevelFunction:OnBossBorn(entity)
	Base.OnBossBorn(self, entity)
    self.bossMaxHp = entity:GetAttrValueNum(LuaConst.AttrType.hplmt)
end

function ExpelMonsterLevelFunction:OnUpdate()
    Base.OnUpdate(self)
    if LogicUpdateManager._clientHandleFrame == self.callBaseSucceedFrame then
    	Base.OnLevelSucceed(self, self.callBaseSucceedWithShow)
    end
end


function ExpelMonsterLevelFunction:BeforeEndLevel()
	Base.BeforeEndLevel(self)

	--在关卡结束之前，记录boss血量，因为关卡结束后(OnLevelSucceed、OnLevelFail)，怪物会被全部清空，boss剩余血量就再也取不到了
	if #self.bossList > 0 then
		self.bossHpLeft = FP.tonumberV1(self.bossList[1].components.attr:HitPointPercents())
	else
		self.bossHpLeft = 0
	end

end

function ExpelMonsterLevelFunction:OnLevelSucceed(withShow)
	self.callBaseSucceedFrame = LogicUpdateManager._clientHandleFrame + 20  --这里不延迟，处理不了一个动画的问题，因为现在配了是全部英雄死亡就胜利，此时会播一个受击动画
	self.callBaseSucceedWithShow = withShow
end

return ExpelMonsterLevelFunction