Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be used as Synchro Material, except for the Synchro Summon of a "Majestic" monster. This card's name becomes "Majestic Dragon" while on the field or in the GY. When you draw this card: You can reveal it; Special Summon it from your hand, then, if you control a Level 8 or higher Dragon Synchro Monster, you can Special Summon 1 Level 1 Dragon monster from your Deck. You can only Special Summon "Converging Wills Dragon(s)" once per turn.
--想い集いし竜
--Converging Wills Dragon
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	c:SetSPSummonOnce(id)
	--synchro limit
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_CANNOT_BE_SYNCHRO_MATERIAL)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetValue(s.synlimit)
	c:RegisterEffect(e1)
	--change name
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e2:SetCode(EFFECT_CHANGE_CODE)
	e2:SetRange(LOCATION_MZONE|LOCATION_GRAVE)
	e2:SetValue(21159309)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
	e3:SetCode(EVENT_DRAW)
	e3:SetRange(LOCATION_HAND)
	e3:SetCost(s.spcost)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
s.listed_names={21159309}
s.listed_series={SET_MAJESTIC}
function s.synlimit(e,c)
	if not c then return false end
	return not c:IsSetCard(SET_MAJESTIC)
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return not e:GetHandler():IsPublic() end
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,LOCATION_HAND)
	Duel.SetPossibleOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsLevelAbove(8) and c:IsRace(RACE_DRAGON) and c:IsType(TYPE_SYNCHRO)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_DRAGON) and c:IsLevel(1) 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 not (c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0) then return end
	if Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil)
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_DECK,0,1,nil,e,tp)
		and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp)
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end