Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Normal or Special Summoned: You can add 1 Level 8 "Magna Warrior" monster from your Deck to your hand. You can only use this effect of "Alpha The Electromagnet Warrior" once per turn. During your opponent's turn: You can Tribute this card; Special Summon 1 Level 4 "Magnet Warrior" monster from your Deck (this is a Quick Effect).
--電磁石の戦士α
--Alpha The Electromagnet Warrior
local s,id=GetID()
function s.initial_effect(c)
	--to hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_TRIGGER_O+EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_QUICK_O)
	e3:SetCode(EVENT_FREE_CHAIN)
	e3:SetRange(LOCATION_MZONE)
	e3:SetHintTiming(0,TIMING_END_PHASE)
	e3:SetCondition(s.spcon)
	e3:SetCost(Cost.SelfTribute)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_MAGNA_WARRIOR,SET_MAGNET_WARRIOR}
function s.thfilter(c)
	return c:IsSetCard(SET_MAGNA_WARRIOR) and c:IsLevel(8) and c:IsAbleToHand()
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.spcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp)
end
function s.spfilter(c,e,tp)
	return c:IsSetCard(SET_MAGNET_WARRIOR) and c:IsLevel(4) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if e:GetHandler():GetSequence()<5 then ft=ft+1 end
	if chk==0 then return ft>0 and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)>0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp)
		if #g>0 then
			Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end