Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During your Main Phase: You can Fusion Summon 1 Level 8 or higher Fusion Monster from your Extra Deck, using monsters from your hand or field as material. If a face-up non-Fusion Fairy monster you control leaves the field by an opponent's card effect, or is destroyed by battle: You can target 1 Level 8 or higher Fusion Monster in your GY; Special Summon it. You can only use each effect of "Despia, Theater of the Branded" once per turn.
--烙印劇城デスピア
--Despia, Theater of the Branded
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--Fusion Summon
	local params={aux.FilterBoolFunction(Card.IsLevelAbove,8)}
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_FUSION_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_FZONE)
	e2:SetCountLimit(1,id)
	e2:SetTarget(Fusion.SummonEffTG(table.unpack(params)))
	e2:SetOperation(function(e,tp,eg,ep,ev,re,r,rp)
						if not e:GetHandler():IsRelateToEffect(e) then return end
						Fusion.SummonEffOP(table.unpack(params))(e,tp,eg,ep,ev,re,r,rp)
					end)
	c:RegisterEffect(e2)
	--Special Summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e3:SetCode(EVENT_LEAVE_FIELD)
	e3:SetRange(LOCATION_FZONE)
	e3:SetCountLimit(1,{id,1})
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.cfilter(c,tp,rp)
	return c:IsPreviousPosition(POS_FACEUP) and c:IsPreviousControler(tp) and c:GetPreviousTypeOnField()&TYPE_FUSION==0
		and c:GetPreviousRaceOnField()&RACE_FAIRY~=0 
		and (c:IsReason(REASON_BATTLE) or (rp==1-tp and c:IsReason(REASON_EFFECT)))
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp,rp)
end
function s.spfilter(c,e,tp)
	return c:IsLevelAbove(8) and c:IsType(TYPE_FUSION) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end