Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Once per turn, if a Fusion Monster is Fusion Summoned: You can target 1 "Metalfoes" monster in your GY with a lower Level than that Fusion Monster; Special Summon it. If this card is sent from the field to the GY: You can add 1 "Metalfoes" monster from your Deck to your hand.
--メタルフォーゼ・コンビネーション
--Metalfoes Combination
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--special summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1)
	e2:SetTarget(s.target)
	e2:SetOperation(s.activate)
	c:RegisterEffect(e2)
	--search
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCondition(s.thcon)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_METALFOES}
function s.cfilter(c,e,tp)
	return c:IsFaceup() and c:IsType(TYPE_FUSION) and c:IsFusionSummoned()
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,c:GetLevel(),e,tp)
end
function s.filter(c,lv,e,tp)
	return c:HasLevel() and c:GetLevel()<lv and c:IsSetCard(SET_METALFOES)
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc,eg:GetFirst():GetLevel(),e,tp) end
	if chk==0 then return eg:IsExists(s.cfilter,1,nil,e,tp)
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,eg:GetFirst():GetLevel(),e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.thfilter(c)
	return c:IsSetCard(SET_METALFOES) and c:IsMonster() and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end