--光なき影 ア＝バオ・ア・クゥー
local s,id,o=GetID()
---@param c Card
function s.initial_effect(c)
    --link summon
	aux.AddLinkProcedure(c,nil,2,99,s.lcheck)
	c:EnableReviveLimit()
    --activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMING_MAIN_END)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.accon)
	e1:SetCost(s.accost)
	e1:SetTarget(s.actarget)
	e1:SetOperation(s.acoperation)
	c:RegisterEffect(e1)
    --draw
    local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DRAW+CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_PHASE+PHASE_STANDBY)
	e2:SetCountLimit(1,id+o)
	e2:SetTarget(s.drtg)
	e2:SetOperation(s.dract)
	c:RegisterEffect(e2)
end
function s.lcheck(g,lc)
	return g:IsExists(Card.IsLinkRace,1,nil,RACE_FIEND)
end
function s.accon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetCurrentPhase()==PHASE_MAIN1 or Duel.GetCurrentPhase()==PHASE_MAIN2
end
function s.accost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,e:GetHandler()) end
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST+REASON_DISCARD)
end
function s.spfilter(c,e,tp)
    return c:IsAttribute(ATTRIBUTE_DARK+ATTRIBUTE_LIGHT) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.actarget(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
    local c=e:GetHandler()
    local b1=Duel.IsExistingMatchingCard(aux.TRUE,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,nil)
    local b2=Duel.GetMZoneCount(tp,c)>0 and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp)
    if chk==0 then return b1 or b2 end
    local op=aux.SelectFromOptions(tp,
        {b1,aux.Stringid(id,2)},
        {b2,aux.Stringid(id,3)})
    e:SetLabel(op)
    if op==1 then
		e:SetCategory(CATEGORY_DESTROY)
		local g=Duel.SelectTarget(tp,aux.TRUE,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,1,nil)
	    Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
	elseif op==2 then
		e:SetCategory(CATEGORY_REMOVE+CATEGORY_SPECIAL_SUMMON)
        Duel.SetOperationInfo(0,CATEGORY_REMOVE,c,1,0,0)
		Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
	end
end
function s.acoperation(e,tp,eg,ep,ev,re,r,rp)
    local op=e:GetLabel()
	if op==1 then
        Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
		local g=Duel.SelectMatchingCard(tp,nil,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,1,nil)
        if #g>0 then
            Duel.HintSelection(g)
            Duel.Destroy(g,REASON_EFFECT)
        end
    elseif op==2 then
        local c=e:GetHandler()
        if c:IsRelateToEffect(e) and Duel.Remove(c,0,REASON_EFFECT+REASON_TEMPORARY)~=0 then
            if c:GetOriginalCode()==id then
                c:RegisterFlagEffect(id,RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END,0,1)
                local e1=Effect.CreateEffect(c)
                e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
                e1:SetCode(EVENT_PHASE+PHASE_END)
                e1:SetReset(RESET_PHASE+PHASE_END)
                e1:SetLabelObject(c)
                e1:SetCountLimit(1)
                e1:SetCondition(s.retcon)
                e1:SetOperation(s.retop)
                Duel.RegisterEffect(e1,tp)
            end
            if Duel.IsExistingMatchingCard(aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE,0,1,nil,e,tp) then
                Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
                local sg=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
                Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
            end
        end
    end
end
function s.retcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetLabelObject():GetFlagEffect(id)~=0
end
function s.retop(e,tp,eg,ep,ev,re,r,rp)
	Duel.ReturnToField(e:GetLabelObject())
end
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk)
    local g=Duel.GetMatchingGroup(Card.IsType,tp,LOCATION_GRAVE,0,nil,TYPE_MONSTER)
	local ct=g:GetClassCount(Card.GetRace)
	if chk==0 then return ct>0 and Duel.IsPlayerCanDraw(tp,ct) end
	Duel.SetTargetPlayer(tp)
    Duel.SetTargetParam(ct)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,ct)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,nil,ct,tp,LOCATION_HAND)
end
function s.dract(e,tp,eg,ep,ev,re,r,rp)
    local g=Duel.GetMatchingGroup(Card.IsType,tp,LOCATION_GRAVE,0,nil,TYPE_MONSTER)
	local ct=g:GetClassCount(Card.GetRace)
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
    if ct>0 then
        Duel.Draw(p,ct,REASON_EFFECT)
        Duel.BreakEffect()
        Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
        local g=Duel.GetFieldGroup(p,LOCATION_HAND,0):Select(p,ct,ct,nil)
        Duel.ShuffleHand(tp)
        aux.PlaceCardsOnDeckBottom(tp,g)
    end
end