Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Set this card from your hand to your Spell & Trap Zone as a Spell. You can only use each of the following effects of "Toy Soldier" once per turn. If this Set card in the Spell & Trap Zone is sent to the GY: You can Special Summon this card. If this card is Normal or Special Summoned: You can add 1 "Toy Box" from your Deck to your hand, or, if you control "Toy Box", you can add 1 Level 4 LIGHT monster instead.
--トイ・ソルジャー
--Toy Soldier
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Can be Set as a Spell
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_MONSTER_SSET)
	e1:SetValue(TYPE_SPELL)
	c:RegisterEffect(e1)
	--Special Summon itself if it was sent to the GY while it was Set in the Spell/Trap Zone
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--Search 1 "Toy Box" or 1 Level 4 LIGHT monster
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_SUMMON_SUCCESS)
	e3:SetCountLimit(1,{id,1})
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	local e4=e3:Clone()
	e4:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e4)
end
s.listed_names={CARD_TOY_BOX}
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_STZONE) and c:IsPreviousPosition(POS_FACEDOWN)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then 
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.thfilter(c,hasbox)
	return c:IsAbleToHand() and (c:IsCode(CARD_TOY_BOX) or (hasbox and c:IsLevel(4) and c:IsAttribute(ATTRIBUTE_LIGHT)))
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local hasbox=Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,CARD_TOY_BOX),tp,LOCATION_ONFIELD,0,1,nil)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil,hasbox) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local hasbox=Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,CARD_TOY_BOX),tp,LOCATION_ONFIELD,0,1,nil)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil,hasbox)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end