Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Insect monsters If this card is Link Summoned: You can discard 1 card, then target 1 other Insect monster you control; equip 1 Insect monster from your Deck to it as an Equip Spell that gains this effect. ● The equipped monster gains 500 ATK/DEF. You can target 3 Insect monsters in your GY; shuffle them into the Deck, then draw 1 card. You can only use each effect of "Inzektor Picofalena" once per turn.
--甲虫装機 ピコファレーナ
--Inzektor Picofalena
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	Link.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsRace,RACE_INSECT),2,2)
	--Return to draw
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_DRAW)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.drtg)
	e1:SetOperation(s.drop)
	c:RegisterEffect(e1)
	--Equip from the Deck
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_EQUIP)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.eqcon)
	e2:SetCost(s.eqcost)
	e2:SetTarget(s.eqtg)
	e2:SetOperation(s.eqop)
	c:RegisterEffect(e2)
end
function s.tdfilter(c)
	return c:IsRace(RACE_INSECT) and c:IsAbleToDeck()
end
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.tdfilter(chkc) end
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1)
		and Duel.IsExistingTarget(s.tdfilter,tp,LOCATION_GRAVE,0,3,nil) end
	Duel.Hint(HINT_OPSELECTED,1-tp,e:GetDescription())
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.tdfilter,tp,LOCATION_GRAVE,0,3,3,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,#g,0,0)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetTargetCards(e)
	if #tg<=0 then return end
	Duel.SendtoDeck(tg,nil,SEQ_DECKTOP,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	if g:IsExists(Card.IsLocation,1,nil,LOCATION_DECK) then Duel.ShuffleDeck(tp) end
	local ct=g:FilterCount(Card.IsLocation,nil,LOCATION_DECK|LOCATION_EXTRA)
	if ct>0 then
		Duel.BreakEffect()
		Duel.Draw(tp,1,REASON_EFFECT)
	end
end
function s.eqcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsLinkSummoned()
end
function s.eqcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST|REASON_DISCARD)
end
function s.filter(c)
	return c:IsFaceup() and c:IsRace(RACE_INSECT)
end
function s.eqfilter(c,tp)
	return c:IsRace(RACE_INSECT) and c:CheckUniqueOnField(tp) and c:IsMonster() and not c:IsForbidden()
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc) and chkc~=c end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,c)
		and Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingMatchingCard(s.eqfilter,tp,LOCATION_DECK,0,1,nil,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,c)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,nil,1,tp,LOCATION_DECK)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsFacedown() or not tc:IsRelateToEffect(e) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	local ec=Duel.SelectMatchingCard(tp,s.eqfilter,tp,LOCATION_DECK,0,1,1,nil,tp):GetFirst()
	if ec then
		s.equipop(tc,e,tp,ec)
	end
end
function s.equipop(c,e,tp,tc)
	if not c:EquipByEffectAndLimitRegister(e,tp,tc,nil,true) then return end
	--ATK/DEF increase
	local e1=Effect.CreateEffect(tc)
	e1:SetType(EFFECT_TYPE_EQUIP)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(500)
	e1:SetReset(RESET_EVENT|RESETS_STANDARD)
	tc:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_UPDATE_DEFENSE)
	tc:RegisterEffect(e2)
	--Equip limit
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_SINGLE)
	e3:SetCode(EFFECT_EQUIP_LIMIT)
	e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e3:SetValue(s.eqlimit)
	e3:SetReset(RESET_EVENT|RESETS_STANDARD)
	tc:RegisterEffect(e3)
end
function s.eqlimit(e,c)
	return c:GetControler()==e:GetHandlerPlayer()
end