class Release < ActiveRecord::Base
  TRUNK_RELEASE_NAME = 'bleeding_edge'
  
  belongs_to :plugin
  
  validates_presence_of :plugin, :name, :source_url, :revision_number
  validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :if => Proc.new { |v| !v.email.blank? }
  
  before_save :normalise_source_url
  before_validation :get_revision_number_from_repository
  before_create :load_data_from_plugin_meta
  
  def load_data_from_plugin_meta
    begin
      about = get_about_file
      about.only(:author, :email, :homepage, :summary, :description, :license).keys.each do |key|
        write_attribute(key, about[key.to_s])
      end
      write_attribute('has_meta_file', true)
    rescue Exception
      write_attribute('has_meta_file', false)
      # do nothing for now.
    end
    true
  end
  
  def test_results
    if self.name == TRUNK_RELEASE_NAME
      self.plugin.test_results.find(:all, :conditions => ["revision_number > ?", self.plugin.latest_release.revision_number])
    else
      self.plugin.test_results.find(:all, :conditions => ["revision_number = ?", self.revision_number])
    end
  end
  
  def health
    TestResult.average(:percentage_passed, :conditions => ["plugin_id = ? and revision_number = ?", self.plugin.id, self.revision_number])
  end
  
  protected
    def normalise_source_url
      write_attribute('source_url', StringUtilities.normalise_url(read_attribute('source_url')))
    end
    
    def get_about_file
      RemoteResources.remote_yaml_document(self.source_url + 'about.yml')
    end
    
    def get_revision_number_from_repository
      if self.revision_number.blank?
        self.revision_number = RemoteResources.repository_info(self.source_url)['Last Changed Rev'].value.to_i
      end
      true
    end
end

#class ReleaseMetaDataMissing < Exception
#end