Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal or Special Summoned: You can Special Summon 1 Level 4 Machine monster from your hand. If this card is destroyed by battle or card effect: You can Special Summon 1 Level 4 "Gadget" monster from your Deck, except "Gold Gadget". You can only use 1 "Gold Gadget" effect per turn, and only once that turn.
--ゴールド・ガジェット
--Gold Gadget
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.sptg1)
	e1:SetOperation(s.spop1)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetCountLimit(1,id)
	e3:SetCondition(s.spcon2)
	e3:SetTarget(s.sptg2)
	e3:SetOperation(s.spop2)
	c:RegisterEffect(e3)
end
s.listed_series={SET_GADGET}
s.listed_names={id}
function s.spfilter1(c,e,tp)
	return c:IsRace(RACE_MACHINE) and c:GetLevel()==4 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg1(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter1,tp,LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function s.spop1(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.spfilter1,tp,LOCATION_HAND,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.spcon2(e,tp,eg,ep,ev,re,r,rp)
	return (r&REASON_EFFECT+REASON_BATTLE)~=0
end
function s.spfilter2(c,e,tp)
	return c:IsSetCard(SET_GADGET) and c:GetLevel()==4 and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg2(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter2,tp,LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.spop2(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.spfilter2,tp,LOCATION_DECK,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end