Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is not equipped with an Equip Card, you take no damage from battles involving this card. If this card is equipped with an Equip Card, it cannot be destroyed by battle and your opponent takes any battle damage you would have taken from battles involving this card. If an Equip Card becomes equipped to this card: You can add 1 "Mikanko" Equip Spell from your Deck to your hand. You can only use this effect of "Ha-Re the Sword Mikanko" once per turn.
--剣の御巫ハレ
--Ha-Re the Sword Mikanko
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Take no battle damage
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_AVOID_BATTLE_DAMAGE)
	e1:SetCondition(aux.NOT(s.eqcon))
	e1:SetValue(1)
	c:RegisterEffect(e1)
	--Cannot be destroyed by battle
	local e2=e1:Clone()
	e2:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e2:SetCondition(s.eqcon)
	c:RegisterEffect(e2)
	--Reflect battle damage
	local e3=e2:Clone()
	e3:SetCode(EFFECT_REFLECT_BATTLE_DAMAGE)
	c:RegisterEffect(e3)
	--Search 1 "Mikanko" Equip Spell
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e4:SetProperty(EFFECT_FLAG_DELAY)
	e4:SetCode(EVENT_EQUIP)
	e4:SetCountLimit(1,id)
	e4:SetTarget(s.thtg)
	e4:SetOperation(s.thop)
	c:RegisterEffect(e4)
end
s.listed_series={SET_MIKANKO}
function s.eqcon(e)
	return e:GetHandler():GetEquipCount()>0
end
function s.thfilter(c)
	return c:IsSetCard(SET_MIKANKO) and c:IsType(TYPE_EQUIP) and c:IsSpell() and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end