# ConfigurationSetting class describes a model that keeps the current Bacula
# configuration.
#
# It has some hard coded settings as defaults.
# Archiving's admins can enter new settings concerning:
#
# * jobs
# * clients
#
# and override the default ones.
#
# ConfigurationSetting is supposed to have only one record in persisted in the database
# which will hold the altered configuration as a patch to the defaults.
# Admins can reset this change at any time.
class ConfigurationSetting < ActiveRecord::Base
  serialize :job, JSON
  serialize :client, JSON

  JOB = {
    storage: :File,
    pool: :Default,
    messages: :Standard,
    priority: 10,
    :'Write Bootstrap' => '"/var/lib/bacula/%c.bsr"'
  }

  CLIENT = {
    catalog: 'MyCatalog',
    file_retention: 60,
    file_retention_period_type: 'days',
    job_retention: 180,
    job_retention_period_type: 'days',
    autoprune: 'yes'
  }

  RETENTION_PERIODS = %w{seconds minutes hours days weeks months quarters years}
  AUTOPRUNE_OPTIONS = ['yes', 'no']

  # Fetches the current configuration for jobs.
  #
  # The current configuration is the last submitted record, patched to the default
  # settings.
  # If there is no record, the default settings are returned
  #
  # @return [Hash] with settings
  def self.current_job_settings
    (last || new).job.symbolize_keys.reverse_merge(JOB.dup)
  end

  # Fetches the current configuration for clients.
  #
  # The current configuration is the last submitted record, patched to the default
  # settings.
  # If there is no record, the default settings are returned
  #
  # @return [Hash] with settings
  def self.current_client_settings
    (last || new).client.symbolize_keys.reverse_merge(CLIENT.dup)
  end

  # Fetches the record's configuration for jobs.
  #
  # The configuration is the record's configuration patched to the default
  # settings.
  #
  # @return [Hash] with settings
  def current_job_settings
    job.symbolize_keys.reverse_merge(JOB.dup)
  end

  # Fetches the record's configuration for clients.
  #
  # The configuration is the record's configuration patched to the default
  # settings.
  #
  # @return [Hash] with settings
  def current_client_settings
    client.symbolize_keys.reverse_merge(CLIENT.dup)
  end
end