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. If this card is Normal or Special Summoned: You can add 1 "Dark Magician" from your Deck to your hand. During damage calculation, if your other DARK Spellcaster monster battles an opponent's monster (Quick Effect): You can send this card from your hand or face-up field to the GY; that monster you control gains 2000 ATK/DEF during that damage calculation only.
--幻想の見習い魔導師
--Apprentice Illusion Magician
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--search
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--atkup
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_ATKCHANGE)
	e4:SetType(EFFECT_TYPE_QUICK_O)
	e4:SetCode(EVENT_PRE_DAMAGE_CALCULATE)
	e4:SetRange(LOCATION_HAND|LOCATION_MZONE)
	e4:SetCondition(s.atkcon)
	e4:SetCost(Cost.SelfToGrave)
	e4:SetOperation(s.atkop)
	c:RegisterEffect(e4)
end
s.listed_names={CARD_DARK_MAGICIAN}
function s.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	local rg=Duel.GetMatchingGroup(Card.IsDiscardable,tp,LOCATION_HAND,0,e:GetHandler())
	return aux.SelectUnselectGroup(rg,e,tp,1,1,aux.ChkfMMZ(1),0,c)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	local rg=Duel.GetMatchingGroup(Card.IsDiscardable,tp,LOCATION_HAND,0,e:GetHandler())
	local g=aux.SelectUnselectGroup(rg,e,tp,1,1,aux.ChkfMMZ(1),1,tp,HINTMSG_DISCARD,nil,nil,true)
	if #g>0 then
		g:KeepAlive()
		e:SetLabelObject(g)
		return true
	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_DISCARD|REASON_COST)
	g:DeleteGroup()
end
function s.filter(c)
	return c:IsCode(CARD_DARK_MAGICIAN) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,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.filter,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.atkcon(e,tp,eg,ep,ev,re,r,rp)
	local c=Duel.GetAttackTarget()
	if not c then return false end
	if c:IsControler(1-tp) then c=Duel.GetAttacker() end
	e:SetLabelObject(c)
	return c and c~=e:GetHandler() and c:IsRace(RACE_SPELLCASTER)
		and c:IsAttribute(ATTRIBUTE_DARK) and c:IsRelateToBattle()
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetLabelObject()
	if c:IsFaceup() and c:IsRelateToBattle() then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_DAMAGE_CAL)
		e1:SetValue(2000)
		c:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		c:RegisterEffect(e2)
	end
end