notification.rb

class Notification < ActiveRecord::Base

  belongs_to :user

  scope :nostatus,  ->{ where( status: nil ) }
  scope :queued,    ->{ where( status: 'queued' ) }
  scope :pushed,    ->{ where( status: 'pushed' ) }
  scope :seen,      ->{ where( status: 'seen' ) }

  scope :unseen,    ->{ where( "`notifications`.`status` != ?", "seen" ) }

  before_save :queue_push_notification

  def queue_push_notification
    if user_can_receive_push_notification
      self.status = 'queued'
    end
  end

  def push_notification
    apn_opts = { alert: notification_content, badge: badge_count, sound: 'true', id: id }
    apn = RubyPushNotifications::APNS::APNSNotification.new( [user.device_token], { aps: apn_opts } )
    apn
  end

  def badge_count
    user.notifications.unseen.count + user.received_messages.unread.count
  end


  # iOS Push Notification Service

  def self.push_new_notifications
    push Notification.queued.all.collect { |n| n.push_notification }
  end

  def self.push notifications
    pusher.push notifications
    notifications.each do |notification|
      puts "Results for notification #{notification}"
      puts notification.results.success
      puts notification.results.failed
      puts notification.inspect
      puts notification.individual_results
    end
  end

  def self.pusher
    RubyPushNotifications::APNS::APNSPusher.new File.read(certificate), Rails.env.development?
  end

  def self.certificate
    if Rails.env.development?
      "/xxx/apns-pro.pem"
    else
      "/xxx/apn_production.pem"
    end
  end



  private

    def user_can_receive_push_notification
      user.device_token.present?
    end


    def notification_content
      return "Notification Content"
    end


end