Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is activated: You can add 1 "Meklord" monster from your Deck to your hand. You can only activate 1 "Meklord Assembly" per turn. You can only use each of the following effects of "Meklord Assembly" once per turn. ● You can discard 1 card, then target 1 monster you control; destroy it. ● If a face-up "Meklord" monster(s) you control is destroyed by battle or card effect: You can target 1 other face-up Spell/Trap on the field; destroy it.
--機皇統制
--Meklord Assembly
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--destroy 1 monster you control
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCost(s.cost)
	e2:SetTarget(s.desmtg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--destroy 1 Spell/Trap
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_DESTROY)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e3:SetRange(LOCATION_SZONE)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetCountLimit(1,{id,2})
	e3:SetCondition(s.desstcond)
	e3:SetTarget(s.dessttg)
	e3:SetOperation(s.desop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_MEKLORD}
function s.filter(c)
	return c:IsSetCard(SET_MEKLORD) and c:IsMonster() and c:IsAbleToHand()
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_DECK,0,nil)
	if #g>0 and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
		local sg=g:Select(tp,1,1,nil)
		Duel.SendtoHand(sg,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,sg)
	end
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsDiscardable,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,Card.IsDiscardable,1,1,REASON_COST|REASON_DISCARD)
end
function s.desmtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) end
	if chk==0 then return Duel.IsExistingTarget(aux.TRUE,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,aux.TRUE,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end
function s.cfilter(c,tp)
	return c:IsSetCard(SET_MEKLORD) and c:IsReason(REASON_BATTLE|REASON_EFFECT)
		and c:IsPreviousLocation(LOCATION_MZONE) and c:IsPreviousControler(tp) and c:IsPreviousPosition(POS_FACEUP)
end
function s.desstcond(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp)
end
function s.dessttg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_ONFIELD) and chkc:IsFaceup() and chkc:IsSpellTrap() end
	if chk==0 then return Duel.IsExistingTarget(aux.FaceupFilter(Card.IsSpellTrap),tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,aux.FaceupFilter(Card.IsSpellTrap),tp,LOCATION_ONFIELD,LOCATION_ONFIELD,1,1,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end