Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a Warrior or FIRE monster. It gains 300 ATK. At the end of the Damage Step, if the equipped monster attacked: You can send this card to the GY; during this Battle Phase, each of your Warrior monsters and FIRE monsters can make a second attack. If this card is sent to the GY, or banished, to activate a monster effect: You can add this card to your hand. You can only use this effect of "Phoenix Gearblade" once per turn.
--フェニックス・ギア・ブレード
--Phoenix Gearblade
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Equip only to a FIRE or Warrior monster
	aux.AddEquipProcedure(c,nil,s.cfilter)
	--Increase ATK by 300
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_EQUIP)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(300)
	c:RegisterEffect(e1)
	--Your Warrior and FIRE monsters can make a second ATK
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_DAMAGE_STEP_END)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCondition(function(e) return e:GetHandler():GetEquipTarget()==Duel.GetAttacker() end)
	e2:SetCost(s.extratkcost)
	e2:SetOperation(s.extratkop)
	c:RegisterEffect(e2)
	--Add itself to the hand
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_TOHAND)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCountLimit(1,id)
	e3:SetCondition(s.thcond)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	local e4=e3:Clone()
	e4:SetCode(EVENT_REMOVE)
	c:RegisterEffect(e4)
end
function s.cfilter(c)
	return c:IsAttribute(ATTRIBUTE_FIRE) or c:IsRace(RACE_WARRIOR)
end
function s.extratkcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToGraveAsCost() and not Duel.HasFlagEffect(tp,id) end
	Duel.SendtoGrave(c,REASON_COST)
end
function s.extratkop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.HasFlagEffect(tp,id) then return end
	Duel.RegisterFlagEffect(tp,id,RESET_PHASE|PHASE_END,0,1)
	--Your Warrior and FIRE monsters can attack twice
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_EXTRA_ATTACK)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetTarget(function(e,c) return c:IsAttribute(ATTRIBUTE_FIRE) or c:IsRace(RACE_WARRIOR) end)
	e1:SetValue(1)
	e1:SetReset(RESET_PHASE|PHASE_BATTLE)
	Duel.RegisterEffect(e1,tp)
end
function s.thcond(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsReason(REASON_COST) and re:IsActivated() and re:IsMonsterEffect()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsAbleToHand() end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,c,1,tp,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SendtoHand(c,nil,REASON_EFFECT)
	end
end