Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 "Metalfoes" monsters If this card is sent from the Monster Zone to the GY by a card effect: You can activate 1 of these effects; ● Target 1 "Metalfoes" monster you control; equip this card to it. It gains 1000 ATK. ● Target 1 "Metalfoes" card you control; destroy it, and if you do, Special Summon this card. You can only use this effect of "Heavymetalfoes Amalgam" once per turn.
--ヘビーメタルフォーゼ・アマルガム
--Heavymetalfoes Amalgam
--scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--link summon
	c:EnableReviveLimit()
	Link.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsSetCard,SET_METALFOES),2,2)
	--equip or special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_TO_GRAVE)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
s.listed_series={SET_METALFOES}
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousLocation(LOCATION_MZONE) and e:GetHandler():IsReason(REASON_EFFECT)
end
function s.spfilter(c,ft)
	return c:IsFaceup() and c:IsSetCard(SET_METALFOES) and (ft>0 or c:GetSequence()<5)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return false end
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	local b1=Duel.IsExistingTarget(Card.IsSetCard,tp,LOCATION_MZONE,0,1,nil,SET_METALFOES) and Duel.GetLocationCount(tp,LOCATION_SZONE)>0
	local b2=Duel.IsExistingTarget(s.spfilter,tp,LOCATION_ONFIELD,0,1,nil,ft) 
	if chk==0 then return b1 or b2 end
	local op=0
	if b1 and b2 then 
		op=Duel.SelectOption(tp,aux.Stringid(id,1),aux.Stringid(id,2))
	elseif b2 then op=1 end
	e:SetLabel(op)
	if op==0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
		local g=Duel.SelectTarget(tp,Card.IsSetCard,tp,LOCATION_MZONE,0,1,1,nil,SET_METALFOES)
		e:SetCategory(CATEGORY_EQUIP)
		Duel.SetOperationInfo(0,CATEGORY_EQUIP,e:GetHandler(),1,0,0)
	else
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
		local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_ONFIELD,0,1,1,nil,ft)
		e:SetCategory(CATEGORY_DESTROY+CATEGORY_SPECIAL_SUMMON)
		Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
		Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
	end
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if not tc or not tc:IsRelateToEffect(e) then return end
	if e:GetLabel()==0 and Duel.GetLocationCount(tp,LOCATION_SZONE)>0 and not tc:IsFacedown() then
		Duel.Equip(tp,c,tc)
		--atk up
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_EQUIP_LIMIT)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetValue(s.eqlimit)
		e1:SetLabelObject(tc)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		c:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_EQUIP)
		e2:SetCode(EFFECT_UPDATE_ATTACK)
		e2:SetValue(1000)
		e2:SetReset(RESET_EVENT|RESETS_STANDARD)
		c:RegisterEffect(e2)
	elseif e:GetLabel()==1 and Duel.Destroy(tc,REASON_EFFECT)~=0 and c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.eqlimit(e,c)
	return c==e:GetLabelObject()
end