Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Normal or Special Summoned: You can target 1 Level 4 or lower Dragon monster in your GY; add it to your hand. While you control no Link Monsters, except the turn this card was sent to the GY: You can banish this card from your GY, then target 1 DARK Dragon Link Monster in your GY; Special Summon it. You can only use each effect of "Hibernation Dragon" once per turn.
--ハイバネーション・ドラゴン
--Hibernation Dragon
local s,id=GetID()
function s.initial_effect(c)
	--summon success
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	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:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCost(Cost.SelfBanish)
	e3:SetCountLimit(1,{id,1})
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.tgfilter(c)
	return c:IsRace(RACE_DRAGON) and c:IsLevelBelow(4) and c:IsMonster() and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.tgfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.tgfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.tgfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,tc)
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return aux.exccon(e) and not Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsType,TYPE_LINK),tp,LOCATION_MZONE,0,1,nil)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_DRAGON) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsLinkMonster()
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP,tp)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler(),e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tg=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler(),e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,tg,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end