--created by Seth, coded by Lyris
--Great London Clue - Police Investigation
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsSetCard,0xd3f))
	e2:SetValue(1)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_QUICK_O)
	e3:SetCode(EVENT_FREE_CHAIN)
	e3:SetRange(LOCATION_SZONE)
	e3:HOPT()
	e3:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND)
	e3:SetCondition(s.thcon)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e4:SetCode(EFFECT_DESTROY_REPLACE)
	e4:SetRange(LOCATION_SZONE)
	e4:HOPT()
	e4:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e4:SetTarget(s.reptg)
	e4:SetOperation(s.repop)
	c:RegisterEffect(e4)
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	local ph=Duel.GetCurrentPhase()
	return ph==PHASE_MAIN1 or ph==PHASE_MAIN2
end
function s.filter(c)
	return c:IsSetCard(0xd3f) and c:IsType(TYPE_SPELL+TYPE_TRAP) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CARDTYPE)
	Duel.SetTargetParam(Duel.AnnounceType(tp))
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)<1 then return end
	Duel.ConfirmDecktop(tp,1)
	if not Duel.GetDecktopGroup(tp,1):GetFirst():IsType(1<<Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	Duel.SendtoHand(g,nil,REASON_EFFECT)
	Duel.ConfirmCards(1-tp,g)
end
function s.repfilter(c,e)
	return c:IsAbleToHand() and not c:IsExtraDeckMonster() and not c:IsStatus(STATUS_LEAVE_CONFIRMED) and not c:IsImmuneToEffect(e)
end
function s.reptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return not c:IsReason(REASON_REPLACE) and Duel.IsExistingMatchingCard(s.repfilter,tp,LOCATION_MZONE,0,1,nil,e) end
	if Duel.SelectEffectYesNo(tp,c,96) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESREPLACE)
		e:SetLabelObject(Duel.SelectMatchingCard(tp,s.repfilter,tp,LOCATION_MZONE,0,1,1,nil,e):GetFirst())
		return true
	else return false end
end
function s.repop(e,tp,eg,ep,ev,re,r,rp)
	Duel.SendtoHand(e:GetLabelObject(),nil,REASON_EFFECT+REASON_REPLACE)
end