Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Warrior-Type monster in your hand. Once per turn: You can target 1 Level 3 or lower Warrior-Type monster in your Graveyard; equip that target to this card. This card gains ATK equal to half the combined ATK of the monsters equipped to it by this effect. If this card would be destroyed by battle, destroy all monsters equipped to it by this effect instead.
--コアキメイル・ウォーアームズ
--Koa'ki Meiru War Arms
local s,id=GetID()
function s.initial_effect(c)
	--cost
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE+EFFECT_FLAG_CANNOT_DISABLE)
	e1:SetCode(EVENT_PHASE+PHASE_END)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.mtcon)
	e1:SetOperation(s.mtop)
	c:RegisterEffect(e1)
	--equip
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,3))
	e2:SetCategory(CATEGORY_LEAVE_GRAVE+CATEGORY_EQUIP)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetTarget(s.eqtg)
	e2:SetOperation(s.eqop)
	c:RegisterEffect(e2)
	aux.AddEREquipLimit(c,nil,s.eqval,s.equipop,e2)
end
s.listed_names={36623431}
function s.eqval(ec,c,tp)
	return ec:IsControler(tp) and ec:IsLevelBelow(3) and ec:IsRace(RACE_WARRIOR)
end
function s.mtcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(tp)
end
function s.cfilter1(c)
	return c:IsCode(36623431) and c:IsAbleToGraveAsCost()
end
function s.cfilter2(c)
	return c:IsMonster() and c:IsRace(RACE_WARRIOR) and not c:IsPublic()
end
function s.mtop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	Duel.HintSelection(Group.FromCards(c))
	local g1=Duel.GetMatchingGroup(s.cfilter1,tp,LOCATION_HAND,0,nil)
	local g2=Duel.GetMatchingGroup(s.cfilter2,tp,LOCATION_HAND,0,nil)
	local select=2
	if #g1>0 and #g2>0 then
		select=Duel.SelectOption(tp,aux.Stringid(id,0),aux.Stringid(id,1),aux.Stringid(id,2))
	elseif #g1>0 then
		select=Duel.SelectOption(tp,aux.Stringid(id,0),aux.Stringid(id,2))
		if select==1 then select=2 end
	elseif #g2>0 then
		select=Duel.SelectOption(tp,aux.Stringid(id,1),aux.Stringid(id,2))+1
	else
		select=Duel.SelectOption(tp,aux.Stringid(id,2))
		select=2
	end
	if select==0 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
		local g=g1:Select(tp,1,1,nil)
		Duel.SendtoGrave(g,REASON_COST)
	elseif select==1 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CONFIRM)
		local g=g2:Select(tp,1,1,nil)
		Duel.ConfirmCards(1-tp,g)
		Duel.ShuffleHand(tp)
	else
		Duel.Destroy(c,REASON_COST)
	end
end
function s.filter(c)
	return c:IsLevelBelow(3) and c:IsRace(RACE_WARRIOR) and not c:IsForbidden()
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,g,1,0,0)
end
function s.equipop(c,e,tp,tc)
	if not c:EquipByEffectAndLimitRegister(e,tp,tc) then return end
	local atk=tc:GetAttack()
	if atk<0 then atk=0 end
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetReset(RESET_EVENT|RESETS_STANDARD)
	e2:SetValue(atk/2)
	tc:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_EQUIP)
	e3:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e3:SetCode(EFFECT_DESTROY_SUBSTITUTE)
	e3:SetReset(RESET_EVENT|RESETS_STANDARD)
	e3:SetValue(s.subval)
	tc:RegisterEffect(e3)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_SZONE)<=0 then return end
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		s.equipop(c,e,tp,tc)
	end
end
function s.subval(e,re,r,rp)
	return (r&REASON_BATTLE)~=0
end