Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Once per turn: You can choose a number from 1 to 3, then excavate that many cards from the top of your Deck, send any excavated Plant-Type monsters to the Graveyard, also place the other cards on the bottom of your Deck in any order. If this card is excavated from the Deck and sent to the Graveyard by a card effect: You can target 1 other Plant-Type monster in your Graveyard; place that target on the top of your Deck.
--森羅の番人 オーク
--Sylvan Guardioak
local s,id=GetID()
function s.initial_effect(c)
	--Excavate up to 3 cards from your Deck
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DECKDES)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	--Place 1 Plant monster on the top of your Deck
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,2))
	e2:SetCategory(CATEGORY_TODECK)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCondition(s.tdcon)
	e2:SetTarget(s.tdtg)
	e2:SetOperation(s.tdop)
	c:RegisterEffect(e2)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,1) end
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	if not Duel.IsPlayerCanDiscardDeck(tp,1) then return end
	local ct=math.min(3,Duel.GetFieldGroupCount(tp,LOCATION_DECK,0))
	if ct==0 then return end
	local t={}
	for i=1,ct do t[i]=i end
	Duel.Hint(HINTMSG_NUMBER,tp,HINT_NUMBER)
	local ac=Duel.AnnounceNumber(tp,table.unpack(t))
	Duel.ConfirmDecktop(tp,ac)
	local g=Duel.GetDecktopGroup(tp,ac)
	local sg=g:Filter(Card.IsRace,nil,RACE_PLANT)
	if #sg>0 then
		Duel.DisableShuffleCheck()
		Duel.SendtoGrave(sg,REASON_EFFECT|REASON_EXCAVATE)
	end
	ac=ac-#sg
	if ac>0 then
		Duel.MoveToDeckBottom(ac,tp)
		Duel.SortDeckbottom(tp,tp,ac)
	end
end
function s.tdcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_DECK) and c:IsReason(REASON_EXCAVATE)
end
function s.filter(c)
	return c:IsRace(RACE_PLANT) and c:IsAbleToDeck()
end
function s.tdtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,1,0,0)
end
function s.tdop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoDeck(tc,nil,SEQ_DECKTOP,REASON_EFFECT)
	end
end