class Order
  include SimplyStored::Couch

  property :state, default: 'placed' # placed, active, delivered, cancelled, closed

  belongs_to :list
  belongs_to :user
  belongs_to :supplier
  belongs_to :section

  has_many :product_orders, dependent: :destroy
  #has_many :products, through: :product_orders
  validates :supplier_id, presence: true
  validates :user_id, presence: true

  view :active_for_supplier_view, type: :custom, map_function: %[function(doc){
    if(doc.ruby_class == 'Order' && (doc.state == 'placed' || doc.state == 'active')){
      emit(doc.supplier_id, 1);
    }
  }], reduce_function: '_sum' 
  view :by_supplier_id_and_id, key: [:supplier_id, :_id]

  def self.active_for_supplier(supplier_id)
    database.view(active_for_supplier_view(key: supplier_id, reduce: false, include_docs: true))
  end
  def table_number
    list.table.number
  end
  alias table_nr table_number


  def placed?
    state == 'placed'
  end
  def active?
    state == 'active'
  end

  def is_being_processed!
    self.state = 'active'
    save
  end

  def is_delivered!
    self.state = 'delivered'
    save
  end

  def close!
    self.state = 'closed' if placed? || active?
    save
  end
end