Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Special Summon this card (from your hand) by discarding 1 card. You can only Special Summon "Nightmare Apprentice" once per turn this way. If this card battles a monster, neither can be destroyed by that battle. If this card is Normal or Special Summoned: You can add 1 Illusion monster from your Deck to your hand, except "Nightmare Apprentice". You can only use this effect of "Nightmare Apprentice" once per turn.
--幻惑の見習い魔術師
--Nightmare Apprentice
--Scripted by Larry126
local s,id=GetID()
function s.initial_effect(c)
	--You can Special Summon this card (from your hand) by discarding 1 card
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Add 1 Illusion monster from your Deck to your hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetCountLimit(1,{id,1})
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--Neither monster can be destroyed by battle
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_FIELD)
	e4:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e4:SetRange(LOCATION_MZONE)
	e4:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e4:SetTarget(s.indestg)
	e4:SetValue(1)
	c:RegisterEffect(e4)
end
s.listed_names={id}
function s.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,e:GetHandler())
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)>0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DISCARD)
		local g=Duel.SelectMatchingCard(tp,Card.IsDiscardable,tp,LOCATION_HAND,0,0,1,e:GetHandler())
		if #g>0 then
			g:KeepAlive()
			e:SetLabelObject(g)
			return true
		end
	end
	return false
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.SendtoGrave(g,REASON_COST|REASON_DISCARD)
	g:DeleteGroup()
end
function s.thfilter(c)
	return c:IsRace(RACE_ILLUSION) and c:IsAbleToHand() and not c:IsCode(id)
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end
function s.indestg(e,c)
	local handler=e:GetHandler()
	return c==handler or c==handler:GetBattleTarget()
end