class Virtual < ApplicationRecord
    validate :domain_name_exists
    validates :email, presence: true
    validates :destination, presence: true
    validates :email, format: { with: /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i , message: "email must be valid"}
    validates :destination, format: { with: /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i , message: "destination must be valid"}
    validates :destination, uniqueness: {scope: :email, message: "a redirection pair must be unique"}

    def domain_name_exists
        if email.present?
            if !email.index("@").nil?
                split_email = email.split("@")
                if !Domain.exists?(domain: split_email[1])
                    errors.add(:email, "domain must be looked after by this server")
                end
            end
        end
    end
end