require 'yaml'

class Configuration

  USERCONF_PATH = ENV['HOME'] + '/.mailshears.conf.yml'
  @dict = {}

  def initialize()
    cfg = default_configuration()

    # Now, load the user configuration which will override the
    # variables defined above.
    begin
      user_config = YAML.load(File.open(USERCONF_PATH))

      # Write our own update() method for Ruby 1.8.
      user_config.each do |key, value|
        cfg[key] = value
      end
    rescue Errno::ENOENT
      # If the user config file doesn't exist, whatever.
    end

    # Convert all of the keys to symbols.
    cfg = cfg.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}

    @dict = cfg
  end

  
  def method_missing(sym, *args)
    # Replace all missing method calls with dictionary lookups.
    return @dict[sym]
  end


  private;

  def default_configuration()
    d = {}

    d['i_mean_business'] = false

    d['dbhost'] = 'localhost'
    d['dbport'] = 5432
    d['dbopts'] = ''
    d['dbtty'] = ''
    d['dbuser'] = 'postgres'
    d['dbpass'] = ''
    d['dbname'] = 'postfix'

    d['plugins'] = ['dovecot_mailstore', 'roundcube_db']

    d['mail_root'] = '/var/spool/mail/vhosts'

    d['roundcube_dbhost'] = 'localhost'
    d['roundcube_dbport'] = 5432
    d['roundcube_dbopts'] = ''
    d['roundcube_dbtty'] = ''
    d['roundcube_dbuser'] = 'postgres'
    d['roundcube_dbpass'] = ''
    d['roundcube_dbname'] = 'roundcube'

    return d
  end

end