GeekPark/gpk_account

class Notification < ActiveRecord::Base
  include Pushable
  notification_type 'notification'

  belongs_to :user
  belongs_to :from_user, class_name: 'User'
  validates :user_id, presence: true
  validates :content_type, inclusion: { in: %w(event dm comment timeline_comment like comment_post comment_question) }
  validates :content, presence: true
  delegate :unread_notifications_count, to: :user
  after_create :push_notification

  enum content_type: {
    event: 1,
    dm: 2,
    comment: 3,
    timeline_comment: 4,
    like: 5,
    comment_post: 6,
    comment_question: 7
  }
  counter_culture :user, column_name: proc { |model| model.unread? ? 'unread_notifications_count' : nil }

  default_scope { order(created_at: :desc) }

  def read!
    update_attribute(:unread, false)
  end

  def as_json
    super(only: [:content_type,
                 :content,
                 :parent_id,
                 :direct_id,
                 :from_user_id])
  end

  def push_notification
    set_notification_info(title: content, extra_info: as_json, to: [user])
      .jpush_notification(at: :now)
  end
end