Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Draw 3 cards, then discard 2 cards including at least 1 "Danger!" card, or, if you have no "Danger!" cards in your hand, show your entire hand and shuffle it into the Deck. You can only activate 1 "Danger! Zone" per turn.
--未界域の危険地帯
--Danger! Zone
--Scripted by AlphaKretin
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW+CATEGORY_HANDES)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_DANGER}
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,3) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(3)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,3)
end
function s.rescon(sg,e,tp,mg)
	return sg:IsExists(Card.IsSetCard,1,nil,SET_DANGER)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	if Duel.Draw(p,d,REASON_EFFECT)==3 then
		Duel.ShuffleHand(p)
		Duel.BreakEffect()
		local g=Duel.GetFieldGroup(p,LOCATION_HAND,0)
		if g:IsExists(Card.IsSetCard,1,nil,SET_DANGER) then
			local sg=aux.SelectUnselectGroup(g,e,tp,2,2,s.rescon,1,tp,HINTMSG_DISCARD)
			Duel.SendtoGrave(sg,REASON_EFFECT|REASON_DISCARD)
		else
			Duel.ConfirmCards(1-p,g)
			Duel.SendtoDeck(g,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)
		end
	end
end