--影霊衣の万華鏡
---@param c Card
function c51124303.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,51124303)
	e1:SetTarget(c51124303.target)
	e1:SetOperation(c51124303.activate)
	c:RegisterEffect(e1)
	--search
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCondition(c51124303.thcon)
	e2:SetCost(c51124303.thcost)
	e2:SetTarget(c51124303.thtg)
	e2:SetOperation(c51124303.thop)
	c:RegisterEffect(e2)
end
function c51124303.spfilter(c,e,tp,mc)
	return c:IsSetCard(0xb4) and bit.band(c:GetType(),0x81)==0x81 and (not c.mat_filter or c.mat_filter(mc,tp))
		and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_RITUAL,tp,false,true)
		and mc:IsCanBeRitualMaterial(c)
end
function c51124303.rfilter(c,mc)
	local mlv=mc:GetRitualLevel(c)
	if mlv==mc:GetLevel() then return false end
	local lv=c:GetLevel()
	return lv==bit.band(mlv,0xffff) or lv==bit.rshift(mlv,16)
end
function c51124303.filter(c,e,tp)
	local sg=Duel.GetMatchingGroup(c51124303.spfilter,tp,LOCATION_HAND,0,c,e,tp,c)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if c:IsLocation(LOCATION_MZONE) then ft=ft+1 end
	if Duel.IsPlayerAffectedByEffect(tp,59822133) then ft=1 end
	return sg:IsExists(c51124303.rfilter,1,nil,c) or sg:CheckWithSumEqual(Card.GetLevel,c:GetLevel(),1,ft)
end
function c51124303.mfilter(c)
	return c:GetLevel()>0 and c:IsAbleToGrave()
end
function c51124303.mzfilter(c,tp)
	return c:IsLocation(LOCATION_MZONE) and c:IsControler(tp) and c:GetSequence()<5
end
function c51124303.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
		if ft<0 then return false end
		local mg=Duel.GetRitualMaterial(tp)
		if ft>0 then
			local mg2=Duel.GetMatchingGroup(c51124303.mfilter,tp,LOCATION_EXTRA,0,nil)
			mg:Merge(mg2)
		else
			mg=mg:Filter(c51124303.mzfilter,nil,tp)
		end
		return mg:IsExists(c51124303.filter,1,nil,e,tp)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function c51124303.RitualCheck(g,lv)
	return g:GetSum(Card.GetLevel)==lv
end
function c51124303.RitualCheckAdditional(lv)
	return	function(g)
				return g:GetSum(Card.GetLevel)<=lv
			end
end
function c51124303.activate(e,tp,eg,ep,ev,re,r,rp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft<0 then return end
	::cancel::
	local mg=Duel.GetRitualMaterial(tp)
	if ft>0 then
		local mg2=Duel.GetMatchingGroup(c51124303.mfilter,tp,LOCATION_EXTRA,0,nil)
		mg:Merge(mg2)
	else
		mg=mg:Filter(c51124303.mzfilter,nil,tp)
	end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
	local mat=mg:FilterSelect(tp,c51124303.filter,1,1,nil,e,tp)
	local mc=mat:GetFirst()
	if not mc then return end
	local sg=Duel.GetMatchingGroup(c51124303.spfilter,tp,LOCATION_HAND,0,mc,e,tp,mc)
	if mc:IsLocation(LOCATION_MZONE) then ft=ft+1 end
	if Duel.IsPlayerAffectedByEffect(tp,59822133) then ft=1 end
	local b1=sg:IsExists(c51124303.rfilter,1,nil,mc)
	local b2=sg:CheckWithSumEqual(Card.GetLevel,mc:GetLevel(),1,ft)
	if b1 and (not b2 or Duel.SelectYesNo(tp,aux.Stringid(51124303,0))) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local tc=sg:Filter(c51124303.rfilter,nil,mc):SelectUnselect(nil,tp,false,true,1,1)
		if not tc then goto cancel end
		tc:SetMaterial(mat)
		if not mc:IsLocation(LOCATION_EXTRA) then
			Duel.ReleaseRitualMaterial(mat)
		else
			Duel.SendtoGrave(mat,REASON_EFFECT+REASON_MATERIAL+REASON_RITUAL)
		end
		Duel.BreakEffect()
		Duel.SpecialSummon(tc,SUMMON_TYPE_RITUAL,tp,tp,false,true,POS_FACEUP)
		tc:CompleteProcedure()
	else
		local lv=mc:GetLevel()
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		aux.GCheckAdditional=c51124303.RitualCheckAdditional(lv)
		local tg=sg:SelectSubGroup(tp,c51124303.RitualCheck,true,1,ft,lv)
		aux.GCheckAdditional=nil
		if not tg then goto cancel end
		local tc=tg:GetFirst()
		while tc do
			tc:SetMaterial(mat)
			tc=tg:GetNext()
		end
		if not mc:IsLocation(LOCATION_EXTRA) then
			Duel.ReleaseRitualMaterial(mat)
		else
			Duel.SendtoGrave(mat,REASON_EFFECT+REASON_MATERIAL+REASON_RITUAL)
		end
		Duel.BreakEffect()
		tc=tg:GetFirst()
		while tc do
			Duel.SpecialSummonStep(tc,SUMMON_TYPE_RITUAL,tp,tp,false,true,POS_FACEUP)
			tc:CompleteProcedure()
			tc=tg:GetNext()
		end
		Duel.SpecialSummonComplete()
	end
end
function c51124303.thcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0
end
function c51124303.cfilter(c)
	return c:IsSetCard(0xb4) and c:IsType(TYPE_MONSTER) and c:IsAbleToRemoveAsCost()
end
function c51124303.thcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsAbleToRemoveAsCost()
		and Duel.IsExistingMatchingCard(c51124303.cfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,c51124303.cfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	g:AddCard(e:GetHandler())
	Duel.Remove(g,POS_FACEUP,REASON_COST)
end
function c51124303.thfilter(c)
	return c:IsSetCard(0xb4) and c:IsType(TYPE_SPELL) and c:IsAbleToHand()
end
function c51124303.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(c51124303.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function c51124303.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,c51124303.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if g:GetCount()>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end
