--Sacrifice Weaver
local ref,id=GetID()
function ref.initial_effect(c)
	local magick=Effect.CreateEffect(c)
	magick:SetDescription(aux.Stringid(id,0))
	magick:SetCategory(CATEGORY_POSITION)
	magick:SetType(EFFECT_TYPE_TRIGGER_O)
	magick:SetProperty(EFFECT_FLAG_DELAY)
	magick:SetCondition(ref.poscon)
	magick:SetTarget(ref.postg)
	magick:SetOperation(ref.posop)
	aux.AddMagickProcChain(c,2,aux.MagickMatCost,magick,aux.TRUE,1)
	--Fusion
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,1))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_TRIGGER_O+EFFECT_TYPE_FLIP+EFFECT_TYPE_SINGLE)
	e1:SetCode(EVENT_FLIP)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetTarget(ref.fustg)
	e1:SetOperation(ref.fusop)
	c:RegisterEffect(e1)
	--To Hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,2))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_TRIGGER_O+EFFECT_TYPE_SINGLE)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCountLimit(1,id)
	e2:SetTarget(ref.thtg)
	e2:SetOperation(ref.thop)
	c:RegisterEffect(e2)
end

function ref.poscon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():GetMaterial():IsExists(Card.IsType,1,nil,TYPE_MONSTER)
end
function ref.postg(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(Card.IsFacedown,tp,LOCATION_MZONE,0,nil)
	if chk==0 then return #g>0 end
	Duel.SetOperationInfo(0,CATEGORY_POSITION,g,1,0,0)
end
function ref.posop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_POSCHANGE)
	local g=Duel.SelectMatchingCard(tp,Card.IsFacedown,tp,LOCATION_MZONE,0,1,1,nil)
	if #g>0 then
		Duel.ChangePosition(g,POS_FACEUP_DEFENSE)
	end
end

--Fusion
function ref.filter1(c)
	return c:IsCanBeFusionMaterial()
end
function ref.filter2(c,e)
	return c:IsOnField() and not c:IsImmuneToEffect(e)
end
function ref.filter3(c,e)
	return ref.filter1(c) and not c:IsImmuneToEffect(e)
end
function ref.spfilter(c,e,tp,m,f,chkf)
	return c:IsType(TYPE_FUSION) and (not f or f(c))
		and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_FUSION,tp,false,false) and c:CheckFusionMaterial(m,nil,chkf)
end
function ref.chkfilter(c,tp)
	return true
end
function ref.fcheck(tp,sg,fc)
	if sg:IsExists(ref.chkfilter,1,nil,tp) then
		return sg:FilterCount(Card.IsControler,nil,1-tp)<=1
	else
		return sg:FilterCount(Card.IsControler,nil,1-tp)<=0
	end
end
function ref.gcheck(tp)
	return  function(sg)
				return sg:FilterCount(Card.IsControler,nil,1-tp)<=1
			end
end
function ref.fustg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local chkf=tp
		local mg1=Duel.GetFusionMaterial(tp):Filter(Card.IsOnField,nil)
		local mg2=Duel.GetMatchingGroup(ref.filter1,tp,0,LOCATION_MZONE,nil)
		if mg1:IsExists(ref.chkfilter,1,nil,tp) and mg2:GetCount()>0 then
			mg1:Merge(mg2)
			aux.FCheckAdditional=ref.fcheck
			aux.GCheckAdditional=ref.gcheck(tp)
		end
		local res=Duel.IsExistingMatchingCard(ref.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg1,nil,chkf)
		aux.FCheckAdditional=nil
		aux.GCheckAdditional=nil
		if not res then
			local ce=Duel.GetChainMaterial(tp)
			if ce~=nil then
				local fgroup=ce:GetTarget()
				local mg3=fgroup(ce,e,tp)
				local mf=ce:GetValue()
				res=Duel.IsExistingMatchingCard(ref.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg3,mf,chkf)
			end
		end
		return res
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function ref.fusop(e,tp,eg,ep,ev,re,r,rp)
	local chkf=tp
	local mg1=Duel.GetFusionMaterial(tp):Filter(ref.filter2,nil,e)
	local mg2=Duel.GetMatchingGroup(ref.filter3,tp,0,LOCATION_MZONE,nil,e)
	if mg1:IsExists(ref.chkfilter,1,nil,tp) and mg2:GetCount()>0 then
		mg1:Merge(mg2)
		exmat=true
	end
	if exmat then
		aux.FCheckAdditional=ref.fcheck
		aux.GCheckAdditional=ref.gcheck(tp)
	end
	local sg1=Duel.GetMatchingGroup(ref.spfilter,tp,LOCATION_EXTRA,0,nil,e,tp,mg1,nil,chkf)
	aux.FCheckAdditional=nil
	aux.GCheckAdditional=nil
	local mg3=nil
	local sg2=nil
	local ce=Duel.GetChainMaterial(tp)
	if ce~=nil then
		local fgroup=ce:GetTarget()
		mg3=fgroup(ce,e,tp)
		local mf=ce:GetValue()
		sg2=Duel.GetMatchingGroup(ref.spfilter,tp,LOCATION_EXTRA,0,nil,e,tp,mg3,mf,chkf)
	end
	local sg=sg1:Clone()
	if sg2 then sg:Merge(sg2) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tg=sg:Select(tp,1,1,nil)
	local tc=tg:GetFirst()
	if not tc then return end
	if sg1:IsContains(tc) and (sg2==nil or not sg2:IsContains(tc) or not Duel.SelectYesNo(tp,ce:GetDescription())) then
		if exmat then
			aux.FCheckAdditional=ref.fcheck
			aux.GCheckAdditional=ref.gcheck(tp)
		end
		local mat1=Duel.SelectFusionMaterial(tp,tc,mg1,nil,chkf)
		aux.FCheckAdditional=nil
		aux.GCheckAdditional=nil
		tc:SetMaterial(mat1)
		Duel.SendtoGrave(mat1,REASON_EFFECT+REASON_MATERIAL+REASON_FUSION)
		Duel.BreakEffect()
		Duel.SpecialSummon(tc,SUMMON_TYPE_FUSION,tp,tp,false,false,POS_FACEUP)
	else
		local mat2=Duel.SelectFusionMaterial(tp,tc,mg3,nil,chkf)
		local fop=ce:GetOperation()
		fop(ce,e,tp,tc,mat2)
	end
	tc:CompleteProcedure()
end

--Recover
function ref.thfilter(c)
	return c:IsType(TYPE_MONSTER) and c:IsAbleToHand() and HighTyper.IsUnique(c,tp)
end
function ref.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and ref.thfilter(chkc) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(ref.thfilter,tp,LOCATION_GRAVE,0,1,nil)
	end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectTarget(tp,ref.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function ref.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
	end
end