Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Loses 1000 ATK while you control "Iron Hans". If this card on the field is destroyed by battle or sent to the GY by a card effect: You can add 1 "Iron Hans" from your Deck to your hand, or, if "Golden Castle of Stromberg" is in a Field Zone, you can add 1 Warrior monster from your Deck to your hand, instead. You can only use this effect of "Iron Knight" once per turn.
--鉄の騎士
--Iron Knight
--Scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetCondition(s.atkcond)
	e1:SetValue(-1000)
	c:RegisterEffect(e1)
	--to hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	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.thcon)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.listed_names={41916534,CARD_STROMBERG}
function s.atkfilter(c)
	return c:IsFaceup() and c:IsCode(41916534)
end
function s.atkcond(e)
	return Duel.IsExistingMatchingCard(s.atkfilter,e:GetHandlerPlayer(),LOCATION_MZONE,0,1,nil)
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return (r&REASON_EFFECT+REASON_BATTLE)~=0 and e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.thfilter(c,fc)
	return (c:IsCode(41916534) or (fc and c:IsRace(RACE_WARRIOR))) and c:IsAbleToHand()
end
function s.fieldcond(c)
	return c:IsFaceup() and c:IsCode(CARD_STROMBERG)
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then 
		local fc=Duel.IsExistingMatchingCard(s.fieldcond,tp,LOCATION_FZONE,LOCATION_FZONE,1,nil)
		return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil,fc)
	end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local fc=Duel.IsExistingMatchingCard(s.fieldcond,tp,LOCATION_FZONE,LOCATION_FZONE,1,nil)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil,fc)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end