class TourDate
  include Mongoid::Document
  include Mongoid::Timestamps

  # Fields --------------------------------------------------------------------
  field :starts_on,         type: Date
  field :number_of_nights,  type: Integer,  :default => 1
  field :available,         type: Boolean,  :default => true
  field :sold_out,          type: Boolean,  :default => false

  # Associations --------------------------------------------------------------
  belongs_to :package

  # Validations ---------------------------------------------------------------
  validates_presence_of :starts_on, :number_of_nights, :package

  # Delegations ---------------------------------------------------------------
  delegate  :name,
            :to => :package,
            :prefix => true

  # Methods -------------------------------------------------------------------

  def availability
    if self.available && self.sold_out
      return "Sold Out"
    elsif self.available && !self.sold_out
      return "Available"
    else
      return "Not Available"
    end
  end
end