#
#  The file-alerter.
#
#  This alert just writes events to a flat-file.
#
module Custodian

  module Alerter

    class AlertFile < AlertFactory

      #
      # The test this alerter cares about
      #
      attr_reader :test


      #
      # Constructor - save the test-object away.
      #
      def initialize(obj)
        @test = obj
      end



      #
      # Record a raise event for the given test.
      #
      def raise
        write_message("RAISE: #{test.target} failed #{test.get_type}-test - #{test.error}")
      end


      #
      # Record the duration of the given test.
      #
      def duration(seconds)
        write_message("#{test.get_type}-test against #{test.target} took #{seconds}ms to complete")
      end


      #
      # Record a clear event for the given test.
      #
      def clear
        write_message("CLEAR: #{test.target} failed #{test.get_type}-test")
      end


      #
      # Write the actual message to our target.
      #
      def write_message(msg)
        file = File.open(@target, 'a')
        file.puts("#{Time.now} #{msg}")
        file.close

      end




      register_alert_type 'file'




    end
  end
end