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 "Dual Avatar" Trap from your Deck to your hand. During your opponent's turn, if a face-up "Dual Avatar" monster(s) you control, except "Dual Avatar Feet - Kokoku", is destroyed by battle or card effect: You can Special Summon this card from your hand, then you can apply this effect. ● Destroy 1 "Dual Avatar" monster you control, and if you do, Special Summon 1 "Dual Avatar" Fusion Monster from your Extra Deck. You can only use each effect of "Dual Avatar Feet - Kokoku" once per turn.
--双天脚の鴻鵠
--Dual Avatar Feet - Kokoku
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon itself from hand and 1 "Souten" Fusion Monster from Extra Deck
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e1:SetRange(LOCATION_HAND)
	e1:SetCode(EVENT_DESTROYED)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Add 1 "Souten" Trap from Deck to the hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,2))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e2:SetCountLimit(1,{id,1})
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
end
s.listed_series={SET_DUAL_AVATAR}
s.listed_names={id}
function s.spfilter(c,tp)
	return c:IsReason(REASON_BATTLE|REASON_EFFECT)
		and c:IsSetCard(SET_DUAL_AVATAR) and c:IsMonster() and not c:IsCode(id)
		and c:IsPreviousControler(tp) and c:IsPreviousLocation(LOCATION_ONFIELD) and c:IsPreviousPosition(POS_FACEUP)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.spfilter,1,nil,tp) and Duel.IsTurnPlayer(1-tp)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.desfilter(c,e)
	return c:IsSetCard(SET_DUAL_AVATAR) and c:IsFaceup() and c:IsDestructable(e)
end
function s.fusfilter(c,e,tp)
	return c:IsType(TYPE_FUSION) and c:IsSetCard(SET_DUAL_AVATAR) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0 then
		local dg=Duel.GetMatchingGroup(s.desfilter,tp,LOCATION_MZONE,0,nil,e)
		local spg=Duel.GetMatchingGroup(s.fusfilter,tp,LOCATION_EXTRA,0,nil,e,tp)
		if #dg>0 and #spg>0 and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
			Duel.BreakEffect()
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
			local tc=dg:Select(tp,1,1,nil)
			Duel.HintSelection(tc)
			if Duel.Destroy(tc,REASON_EFFECT)>0 then
				Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
				local sg=spg:Select(tp,1,1,nil):GetFirst()
				if sg then
					Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
				end
			end
		end
	end
end
function s.filter(c)
	return c:IsSetCard(SET_DUAL_AVATAR) and c:IsTrap() and c:IsAbleToHand()
end
function s.target(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.operation(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