# encoding: utf-8

class Survey

  include Mongoid::Document
  include Mongoid::Timestamps

  scope :available_for_lang, ->(locale){ where("available_for_#{locale}".to_sym => true) }
  scope :can_display, where(is_hidden: false)

  field :title, :localize => true
  field :description, :localize => true

  field :create_user_id
  field :update_user_id

  field :postdate, :type => DateTime
  field :deadline, :type => DateTime

  field :is_hidden, :type => Boolean, :default => false
  
  validates :title, :at_least_one => true

  has_many :survey_questions, :autosave => true, :dependent => :destroy
  has_many :survey_answers, :dependent => :destroy

  accepts_nested_attributes_for :survey_questions, :allow_destroy => true

  before_save :check_deadline, :update_avliable_language

  def time_range
    r = "#{self.postdate.to_date}"
    r += "- #{self.deadline.to_date}" if self.deadline
    r
  end

  protected
  
  def check_deadline
    if(!self.deadline.nil? and (self.deadline < self.postdate ))
      self.deadline = nil
    end
  end
  
  def update_avliable_language
    VALID_LOCALES.each  do |locale|
      if (title_translations[locale].blank? rescue true)
        self["available_for_#{locale}".to_sym] = false 
      else
        self["available_for_#{locale}".to_sym] = true
      end
    end
  end

end