# redMine - project management software
# Copyright (C) 2006-2007  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'mailman_wrapper'

class MailingList < ActiveRecord::Base
  belongs_to :project
  belongs_to :admin, :class_name => 'User', :foreign_key => 'admin_id'
  has_many :messages, :class_name => 'MailingMessage', :dependent => :delete_all
      
  validates_presence_of :name, :description, :password, :admin_id
  validates_confirmation_of :password
  validates_format_of :name, :with => /^[a-z0-9\-]+$/i
  
  STATUSES = {
	  (STATUS_REQUESTED = 1)     => :mailing_list_status_requested,
      (STATUS_CREATED = 2)       => :mailing_list_status_created,
      (STATUS_TO_BE_DELETED = 3) => :mailing_list_status_to_be_deleted
	}.freeze

  def status_name
    STATUSES[self.status]
  end
  
  # Should be called to create requested lists and destroy unwanted ones
  # From cron, for example:
  # ruby script/runner 'MailingList.create_and_destroy_lists'
  def self.create_and_destroy_lists
    self.create_requested_lists
    self.destroy_unwanted_lists
  end
  
  def self.create_requested_lists
    find(:all, :conditions => ["status=?", STATUS_REQUESTED]).each do |list|
      if MailmanWrapper::create_list(list)
        list.update_attribute(:status, STATUS_CREATED)
      end
    end
  end
  
  def self.destroy_unwanted_lists
    find(:all, :conditions => ["status=?", STATUS_TO_BE_DELETED]).each do |list|
      if MailmanWrapper::destroy_list(list)
        list.destroy
      end
    end
  end
end