Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Set this card from your hand to your Spell & Trap Zone as a Spell Card. During your opponent's turn, if this Set card in the Spell & Trap Zone is destroyed and sent to your Graveyard: Special Summon it. If this card is Special Summoned during your opponent's turn: "Artifact" monsters you control cannot be targeted or destroyed by your opponent's card effects until the end of this turn.
--アーティファクト－アイギス
--Artifact Aegis
local s,id=GetID()
function s.initial_effect(c)
	--Set itself to the S/T zone
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_MONSTER_SSET)
	e1:SetValue(TYPE_SPELL)
	c:RegisterEffect(e1)
	--Special summon itself
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--Prevent destruction by opponent's effect
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	e3:SetCondition(s.indcon)
	e3:SetOperation(s.indop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_ARTIFACT}
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_SZONE) and c:IsPreviousPosition(POS_FACEDOWN)
		and c:IsReason(REASON_DESTROY) and Duel.GetTurnPlayer()~=tp
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if e:GetHandler():IsRelateToEffect(e) then
		Duel.SpecialSummon(e:GetHandler(),0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.indcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp)
end
function s.tg(e,c)
	return c:IsFaceup() and c:IsSetCard(SET_ARTIFACT)
end
function s.indop(e,tp,eg,ep,ev,re,r,rp)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e1:SetTarget(s.tg)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetValue(aux.indoval)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e2:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetValue(aux.tgoval)
	Duel.RegisterEffect(e2,tp)
end