require_dependency 'mailing_job'

class Mailing < ActiveRecord::Base

  attr_accessible :subject, :body
  validates_presence_of :source_id, :subject, :body
  belongs_to :source, :foreign_key => :source_id, :polymorphic => true
  belongs_to :person

  has_many :mailing_sents

  xss_terminate :only => [ :subject, :body ], :with => 'white_list', :on => 'validation'

  after_create do |mailing|
    mailing.schedule
  end

  def schedule
    Delayed::Job.enqueue MailingJob.new(self.id)
  end

  def generate_from
    "#{source.name} <#{if source.is_a? Environment then source.noreply_email else source.contact_email end}>"
  end

  def generate_subject
    '[%s] %s' % [source.name, subject]
  end

  def signature_message
    _('Sent by Noosfero.')
  end

  def url
    ''
  end

  def deliver
    each_recipient do |recipient|
      begin
        Mailing::Sender.notification(self, recipient.email).deliver
        self.mailing_sents.create(:person => recipient)
      rescue Exception => ex
        Rails.logger.error("#{ex.class.to_s} - #{ex.to_s} at #{__FILE__}:#{__LINE__}")
      end
    end
  end

  class Sender < ApplicationMailer

    def notification(mailing, recipient)
      @message = mailing.body
      @signature_message = mailing.signature_message
      @url = mailing.url
      mail(
        :content_type => 'text/html',
        :to => recipient,
        :from => mailing.generate_from,
        :reply_to => mailing.person.email,
        :subject => mailing.generate_subject
      )
    end
  end
end