Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
(This card is always treated as a "Galaxy" card.) When an opponent's monster declares an attack: You can discard this card; Special Summon 1 "Galaxy-Eyes Photon Dragon" from your hand or Deck, then change the attack target to it, then you can attach this card from the GY to 1 Xyz Monster on the field as material. If a "Photon" or "Galaxy" monster(s) you control would be destroyed by battle or an opponent's card effect, you can banish this card from your GY instead.
--ギャラクリボー
--Galactikuriboh
--Scripted by Larry126
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 1 "Galaxy-Eyes Photon Dragon"
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(function(_,tp) return Duel.GetAttacker():IsControler(1-tp) end)
	e1:SetCost(s.spcost)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Destruction replacement for "Photon" or "Galaxy" monsters
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EFFECT_DESTROY_REPLACE)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetTarget(s.reptg)
	e2:SetValue(s.repval)
	e2:SetOperation(s.repop)
	c:RegisterEffect(e2)
end
s.listed_names={CARD_GALAXYEYES_P_DRAGON}
s.listed_series={SET_PHOTON,SET_GALAXY}
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsDiscardable() end
	Duel.SendtoGrave(c,REASON_COST|REASON_DISCARD)
	c:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD|RESET_CHAIN,0,1)
end
function s.spfilter(c,e,tp)
	return c:IsCode(CARD_GALAXYEYES_P_DRAGON) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK)
end
function s.matfilter(c,e)
	return c:IsFaceup() and c:IsType(TYPE_XYZ) and not c:IsImmuneToEffect(e)
end
function s.spop(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.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,1,nil,e,tp)
	if #g>0 and Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)>0 then
		local ac=Duel.GetAttacker()
		if not (ac:IsRelateToBattle() and ac:CanAttack() and not ac:IsImmuneToEffect(e)) then return end
		Duel.BreakEffect()
		local c=e:GetHandler()
		local xg=Duel.GetMatchingGroup(s.matfilter,tp,LOCATION_MZONE,LOCATION_MZONE,nil,e)
		if Duel.ChangeAttackTarget(g:GetFirst()) and c:HasFlagEffect(id) and c:IsLocation(LOCATION_GRAVE) and aux.nvfilter(c)
			and #xg>0 and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
			Duel.BreakEffect()
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
			local tc=xg:Select(tp,1,1,nil):GetFirst()
			Duel.Overlay(tc,c)
		end
	end
end
function s.repfilter(c,tp)
	return c:IsFaceup() and c:IsSetCard({SET_PHOTON,SET_GALAXY})
		and c:IsLocation(LOCATION_MZONE) and c:IsControler(tp) and not c:IsReason(REASON_REPLACE)
		and (c:IsReason(REASON_BATTLE) or (c:IsReason(REASON_EFFECT) and c:GetReasonPlayer()==1-tp))
end
function s.reptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToRemove() and eg:IsExists(s.repfilter,1,nil,tp) end
	return Duel.SelectEffectYesNo(tp,c,96)
end
function s.repval(e,c)
	return s.repfilter(c,e:GetHandlerPlayer())
end
function s.repop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Remove(e:GetHandler(),POS_FACEUP,REASON_EFFECT|REASON_REPLACE)
end