--Corona di Zaffiro Spektrale
--Scripted by: XGlitchy30
local s,id = GetID()

function s.initial_effect(c)
	--cannot link material
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e0:SetCode(EFFECT_CANNOT_BE_LINK_MATERIAL)
	e0:SetValue(1)
	c:RegisterEffect(e0)
	--If normal summoned, special summon "Valkyrie" monster
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id)
	e1:SetCost(s.spcost)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--lvchange
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,3))
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_GRAVE)
	e4:SetCountLimit(1,id+100)
	e4:SetCost(s.lvcost)
	e4:SetTarget(s.lvtg)
	e4:SetOperation(s.lvop)
	c:RegisterEffect(e4)
	if not s.global_check then
		s.global_check=true
		local g1=Effect.CreateEffect(c)
		g1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		g1:SetCode(EVENT_SUMMON_SUCCESS)
		g1:SetOperation(s.regop)
		Duel.RegisterEffect(g1,0)
		local g2=g1:Clone()
		g2:SetCode(EVENT_SPSUMMON_SUCCESS)
		Duel.RegisterEffect(g2,0)
		local g3=g1:Clone()
		g3:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
		Duel.RegisterEffect(g3,0)
	end
end
function s.regop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetOwner()
	for p=0,1 do
		if eg:IsExists(s.counterfilter,1,c,p) then
			Duel.RegisterFlagEffect(p,id,RESET_PHASE+PHASE_END,0,1)
		end
	end
end
function s.counterfilter(c,p)
	return not c:IsAttribute(ATTRIBUTE_DARK) and c:GetSummonPlayer()==p
end
function s.sharedcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFlagEffect(tp,id)<=0 end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_OATH)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetReset(RESET_PHASE+PHASE_END)
	e1:SetTargetRange(1,0)
	e1:SetTarget(s.sumlimit)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_CANNOT_SUMMON)
	Duel.RegisterEffect(e2,tp)
	local e3=e1:Clone()
	e3:SetCode(EFFECT_CANNOT_FLIP_SUMMON)
	Duel.RegisterEffect(e3,tp)
	local e4=Effect.CreateEffect(e:GetHandler())
	e4:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_CLIENT_HINT+EFFECT_FLAG_OATH)
	e4:SetDescription(aux.Stringid(id,4))
	e4:SetReset(RESET_PHASE+PHASE_END)
	e4:SetTargetRange(1,0)
	Duel.RegisterEffect(e4,tp)
end
function s.sumlimit(e,c,sump,sumtype,sumpos,targetp,se)
	return not c:IsAttribute(ATTRIBUTE_DARK)
end

function s.spfilter(c,e,tp)
	return c:IsLevel(2) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsCanBeSpecialSummoned(e,0,tp,false,false) and not c:IsCode(id) and c~=e:GetHandler()
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return s.sharedcost(e,tp,eg,ep,ev,re,r,rp,0) and c:IsDiscardable() end
	Duel.SendtoGrave(c,REASON_COST+REASON_DISCARD)
	s.sharedcost(e,tp,eg,ep,ev,re,r,rp,1)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return not Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) and Duel.GetLocationCount(tp,LOCATION_MZONE)>1
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND+LOCATION_GRAVE,0,2,nil,e,tp)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,2,tp,LOCATION_HAND+LOCATION_GRAVE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g1=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE+LOCATION_HAND,0,2,2,nil,e,tp)
	if #g1>0 and Duel.SpecialSummon(g1,0,tp,tp,false,false,POS_FACEUP)==2 then
		local og=g1:Filter(Card.IsLocation,nil,LOCATION_MZONE):Filter(Card.IsFaceup,nil)
		local _,lv=g1:GetMinGroup(Card.GetLevel)
		local sel=0
		if math.abs(lv)>1 then
			sel=Duel.SelectOption(tp,aux.Stringid(id,1),aux.Stringid(id,2))
		else
			sel=Duel.SelectOption(tp,aux.Stringid(id,2))+1
		end
		for tc in aux.Next(og) do
			local lv=tc:GetLevel()
			local val=(sel==0) and math.floor(lv/2) or lv*2
			local e1=Effect.CreateEffect(c)
			e1:SetType(EFFECT_TYPE_SINGLE)
			e1:SetCode(EFFECT_CHANGE_LEVEL)
			e1:SetReset(RESET_EVENT+RESETS_STANDARD)
			e1:SetValue(val)
			tc:RegisterEffect(e1,true)
		end
	end
end

function s.lvcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,0) and s.sharedcost(e,tp,eg,ep,ev,re,r,rp,0) end
	aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,1)
	s.sharedcost(e,tp,eg,ep,ev,re,r,rp,1)
end
function s.lvtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.lvtarget,tp,LOCATION_MZONE,0,1,nil) end
	local g=Duel.GetMatchingGroup(s.lvtarget,tp,LOCATION_MZONE,0,nil)
	local invalid_lv=(g:GetClassCount(Card.GetLevel)==1) and g:GetFirst():GetLevel() or nil
	Duel.Hint(HINT_SELECTMSG,tp,aux.Stringid(id,1))
	local lv=Duel.AnnounceLevel(tp,1,8,invalid_lv)
	e:SetLabel(lv)
end
function s.lvop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local g=Duel.GetMatchingGroup(s.lvtarget,tp,LOCATION_MZONE,0,nil)
	for tc in aux.Next(g) do
		local e1=Effect.CreateEffect(c)
		e1:SetDescription(aux.Stringid(id,5))
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_CLIENT_HINT)
		e1:SetCode(EFFECT_CHANGE_LEVEL)
		e1:SetValue(e:GetLabel())
		e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
		tc:RegisterEffect(e1)
	end
end
function s.lvtarget(c)
	return c:IsSetCard(0x27a) and c:IsFaceup() and c:GetLevel()>0
end