Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal Summoned: You can make your opponent gain 500 LP, then your opponent looks at the top 3 cards in your Deck, and chooses 1 of them for you to add to your hand, also shuffle the rest back into the Deck. You can only use this effect of "Fairy Tail - Rochka" once per turn. Once per battle, if this card battles, before damage calculation: You can send this card to the GY.
--妖精伝姫－ラチカ
--Fairy Tail - Rochka
--Scripted by DyXel
local s,id=GetID()
function s.initial_effect(c)
	--Opponent looks at top 3 cards of your deck, choose 1 to add to your hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH+CATEGORY_RECOVER)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.exctg)
	e1:SetOperation(s.excop)
	c:RegisterEffect(e1)
	--When battling, send itself to the GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOGRAVE)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BATTLE_CONFIRM)
	e2:SetCondition(s.sgycon)
	e2:SetTarget(s.sgytg)
	e2:SetOperation(s.sgyop)
	c:RegisterEffect(e2)
end
function s.posfilter(c)
	return c:IsFaceup() and c:IsCanTurnSet()
end
function s.exctg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chk==0 then
		local g=Duel.GetDecktopGroup(tp,3)
		return #g>=3 and g:FilterCount(Card.IsAbleToHand,nil)>0
	end
	Duel.SetOperationInfo(0,CATEGORY_RECOVER,nil,0,1-tp,500)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,0,LOCATION_DECK)
end
function s.excop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.Recover(1-tp,500,REASON_EFFECT)<=0 then return end
	Duel.BreakEffect()
	Duel.ConfirmDecktop(tp,3)
	local g=Duel.GetDecktopGroup(tp,3)
	if #g>0 then
		Duel.Hint(HINT_SELECTMSG,1-tp,HINTMSG_ATOHAND)
		local sc=g:Select(1-tp,1,1,nil):GetFirst()
		if sc:IsAbleToHand() then
			Duel.SendtoHand(sc,nil,REASON_EFFECT)
			Duel.ConfirmCards(1-tp,sc)
			Duel.ShuffleHand(tp)
		else
			Duel.SendtoGrave(sc,REASON_RULE)
		end
		Duel.ShuffleDeck(tp)
	end
end
function s.sgycon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local bc=c:GetBattleTarget()
	return c:IsRelateToBattle() and bc and bc:IsFaceup() and bc:IsRelateToBattle()
end
function s.sgytg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToGrave() end
	Duel.SetOperationInfo(0,CATEGORY_TOGRAVE,c,1,tp,0)
end
function s.sgyop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then Duel.SendtoGrave(c,REASON_EFFECT) end
end