Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Toss a coin and apply this effect. If "Light Barrier" is in your Field Zone, you can choose the effect instead. ● Heads: Special Summon 1 Level 4 or lower "Arcana Force" monster from your Deck. ● Tails: Special Summon 1 monster that has a coin tossing effect from your GY. You can banish this card from your GY; add 1 card from your GY to your hand that has a coin tossing effect. You can only use 1 "Arcana Spread" effect per turn, and only once that turn.
--アルカナスプレッド
--Arcana Spread
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Toss a coin and apply an effect based on the result
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_COIN+CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Add 1 card from your GY to your hand that has a coin tossing effect
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.toss_coin=true
s.listed_names={CARD_LIGHT_BARRIER}
s.listed_series={SET_ARCANA_FORCE}
function s.headsspfilter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsSetCard(SET_ARCANA_FORCE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.tailsspfilter(c,e,tp)
	return c.toss_coin and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and (Duel.IsExistingMatchingCard(s.headsspfilter,tp,LOCATION_DECK,0,1,nil,e,tp)
		or Duel.IsExistingMatchingCard(s.tailsspfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp)) end
	Duel.SetOperationInfo(0,CATEGORY_COIN,nil,0,tp,1)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK|LOCATION_GRAVE)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local coin=nil
	if Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,CARD_LIGHT_BARRIER),tp,LOCATION_FZONE,0,1,nil) then
		local b1=Duel.IsExistingMatchingCard(s.headsspfilter,tp,LOCATION_DECK,0,1,nil,e,tp)
		local b2=Duel.IsExistingMatchingCard(aux.NecroValleyFilter(s.tailsspfilter),tp,LOCATION_GRAVE,0,1,nil,e,tp)
		local op=Duel.SelectEffect(tp,
			{b1,aux.GetCoinEffectHintString(COIN_HEADS)},
			{b2,aux.GetCoinEffectHintString(COIN_TAILS)})
		if not op then return end
		coin=op==1 and COIN_HEADS or COIN_TAILS
	else
		coin=Duel.TossCoin(tp,1)
	end
	if coin==COIN_HEADS then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,s.headsspfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp)
		if #g>0 then
			Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
		end
	elseif coin==COIN_TAILS then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.tailsspfilter),tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
		if #g>0 then
			Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end
function s.thfilter(c)
	return c.toss_coin 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_GRAVE,0,1,e:GetHandler()) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_GRAVE)
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_GRAVE,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end