class NewsBulletin
  include Mongoid::Document
  include Mongoid::Timestamps

  include OrbitModel::Status
  include OrbitModel::Impression
  # encoding: utf-8
  include OrbitTag::Taggable
  include OrbitCategory::Categorizable
  include Slug

  field :is_edit, type: Boolean, default: false #use to check whether the preview record changed
  field :copy_id

  field :title, as: :slug_title, type: String, localize: true
  field :subtitle, localize: true
  field :text, localize: true

  field :create_user_id
  field :update_user_id

  field :public, :type => Boolean, :default => true
  field :postdate , :type => DateTime, :default => Time.now
  field :deadline , :type => DateTime
  field :rss2_sn
  field :approved, :type => Boolean, :default => false
  field :rejected, :type => Boolean, :default => false
  field :reapproval, :type => Boolean, :default => false
  field :rejection_reason
  field :is_preview, :type => Boolean, :default => false
  field :image_description, localize: true
  field :expirable_created_at, type: DateTime

  field :email_id
  field :email_sent, :type => Boolean, :default => false
  field :email_sentdate , :type => DateTime
  field :email_member_ids
  field :other_mailaddress

  mount_uploader :image, ImageUploader

  belongs_to :unit
  belongs_to :department

  has_many :news_bulletin_links, :autosave => true, :dependent => :destroy
  has_many :news_bulletin_files, :autosave => true, :dependent => :destroy

  accepts_nested_attributes_for :news_bulletin_files, :allow_destroy => true
  accepts_nested_attributes_for :news_bulletin_links, :allow_destroy => true

  before_destroy :destroy_email

  before_create :set_expire
  def set_expire
    self.expirable_created_at = Time.now if self.is_preview
    return true
  end

  scope :can_display, ->{where(:is_hidden=>false).any_of({:postdate.lt=>Time.now, :deadline.gt=>Time.now},{:postdate.lt=>Time.now, :deadline=>nil}).order_by([:is_top, :desc])}
  scope :can_display_postdate, ->{where(:is_hidden=>false,:postdate.lt=>Time.now).order_by([:is_top, :desc])}
  scope :is_approved, ->{where(:approved => true)}

  def get_org_model
    if self.is_preview
      org_model = nil
      if self.copy_id
        org_model = self.class.find(self.copy_id) rescue nil
      end
      org_model.nil? ? self : org_model
    else
      self
    end
  end

  def update_user
    User.find(update_user_id) rescue nil
  end

  def update_user=(user)
    self.update_user_id = user.id
  end

  def email_members
    MemberProfile.find(self.email_member_ids) rescue []
  end

  def email_addresses
    addresses = self.email_members.collect{|member| member.email} rescue []
    addresses = addresses +[self.other_mailaddress] if !self.other_mailaddress.blank?
    addresses.flatten
  end

  def email
    mail = Email.find(self.email_id) rescue nil
  end

  def expired?
    (self.deadline < Time.now) rescue false
  end

  def destroy_email
    mail = Email.find(self.email_id) rescue nil
    mail.destroy if !mail.nil?
  end

end