class TaskJuggler::Tj3Daemon

# File lib/taskjuggler/apps/Tj3Daemon.rb, line 26
def initialize
  super
  @mandatoryArgs = '[<tjp file> [<tji file> ...] ...]'

  @mhi = MessageHandlerInstance.instance
  @mhi.logFile = File.join(Dir.getwd, "/#{AppConfig.appName}.log")
  @mhi.appName = AppConfig.appName
  # By default show only warnings and more serious messages.
  @mhi.outputLevel = :warning
  @daemonize = true
  @uriFile = File.join(Dir.getwd, '.tj3d.uri')
  @port = nil
  @webServer = false
  @webServerPort = 8080
  @webdPidFile = File.join(Dir.getwd, ".tj3webd-#{$$}.pid")
end

# File lib/taskjuggler/apps/Tj3Daemon.rb, line 85
def appMain(files)
  broker = ProjectBroker.new
  @rc.configure(self, 'global')
  @rc.configure(@mhi, 'global.log')
  @rc.configure(broker, 'global')
  @rc.configure(broker, 'daemon')

  # Set some config variables if corresponding data was provided via the
  # command line.
  broker.port = @port if @port
  broker.uriFile = @uriFile
  broker.projectFiles = sortInputFiles(files) unless files.empty?
  broker.daemonize = @daemonize
  # Create log files for standard IO for each child process if the daemon
  # is not disconnected from the terminal.
  broker.logStdIO = !@daemonize

  if @webServer
    webdCommand = "tj3webd --webserver-port #{@webServerPort} " +
                           "--pidfile #{@webdPidFile}"
    # Also start the web server as a separate process. We keep the PID, so
    # we can terminate that process again when we exit the daemon.
    begin
      `#{webdCommand}`
    rescue
      error('tj3webd_start_failed', "Could not start tj3webd: #{$!}")
    end
    info('web_server_started', "Web server started as '#{webdCommand}'")
  end

  broker.start

  if @webServer
    pid = nil
    begin
      # Read the PID of the web server from the PID file.
      File.open(@webdPidFile, 'r') do |f|
        pid = f.read.to_i
      end
    rescue
      warning('cannot_read_webd_pidfile',
              "Cannot read tj3webd PID file (#{@webdPidFile}): #{$!}")
    end
    # If we have started the web server, we are also trying to terminate
    # that process again.
    begin
      Process.kill("TERM", pid)
    rescue
      warning('tj3webd_term_failed',
              "Could not terminate web server: #{$!}")
    end
    info('web_server_terminated', "Web server with PID #{pid} terminated")
  end

  0
end

# File lib/taskjuggler/apps/Tj3Daemon.rb, line 43
    def processArguments(argv)
      super do
        @opts.banner.prepend(<<'EOT'
The TaskJuggler daemon can be used to quickly generate reports for a number
of scheduled projects that are resident in memory. Once the daemon has been
started tj3client can be used to control it.

EOT
        )
        @opts.on('-d', '--dont-daemonize',
                 format("Don't put program into daemon mode. Keep it " +
                        'connected to the terminal and show debug output.')) do
          @daemonize = false
        end
        @opts.on('-p', '--port <NUMBER>', Integer,
                 format('Use the specified TCP/IP port to serve tj3client ' +
                        'requests (Default: 8474).')) do |arg|
          @port = arg
        end
        @opts.on('--logfile <FILE NAME>', String,
                          format('Log daemon messages to the specified file.')) do |arg|
              @mhi.logFile = arg
              end
        @opts.on('--urifile <FILE NAME>', String,
                 format('If the port is 0, use this file to store the URI ' +
                        'of the server.')) do |arg|
          @uriFile = arg
        end
        @opts.on('-w', '--webserver',
                 format('Start a web server that serves the reports of ' +
                        'the loaded projects.')) do
          @webServer = true
        end
        @opts.on('--webserver-port <NUMBER>', Integer,
                 format('Use the specified TCP/IP port to serve web browser ' +
                        'requests (Default: 8080).')) do |arg|
          @webServerPort = arg
        end

      end
    end