class Document < ActiveRecord::Base
  include Workflow

  belongs_to :accepted_offer
  
  has_one :customer, :through => :accepted_offer

  mount_uploader :document, DocumentUploader
  mount_uploader :returned_document, DocumentUploader

  acts_as_paranoid
  workflow_column :state

  validates :title, :presence => true


  workflow do
    state :not_available do
      event :upload_document, :transitions_to => :document_available
    end
    state :document_available do
      event :download_document, :transitions_to => :document_downloaded
    end
    state :document_downloaded do
      event :return_document, :transitions_to => :document_returned
    end
    state :document_returned do
      event :verify, :transitions_to => :document_verified
    end
    state :document_verified
  end

  def human_state
    case state
    when 'not_available'
      "Pas encore disponible, patientez..."
    when 'document_available'
      "Disponible"
    when 'document_downloaded'
      "Téléchargé, à retourner signé"
    when 'document_returned'
      "Retourné, en attente de vérification"
    when 'document_verified'
      "Retourné et vérifié"
    end
  end

  def human_admin_state
    case state
    when 'not_available'
      "Vous devez charger le document"
    when 'document_available'
      "Disponible et en attente de téléchargement par le client"
    when 'document_downloaded'
      "Téléchargé par le client, en attente de retour"
    when 'document_returned'
      "Retourné par le client, en attente de vérification"
    when 'document_verified'
      "Retourné et vérifié"
    end
  end

end