Help me Kyle, you're my only hope!

HALP.js

smtp = require('smtp-protocol')
Q = require('q')
EventEmitter = require('events').EventEmitter

class LightSMTPServer extends EventEmitter
    
    constructor: () ->
    
    runServer: (userHandlers, options) ->
        
        server = smtp.createServer((req) ->
            req.on('message', (stream, ack) ->
                console.log
                usableHandlers =
                    userHandlers.filter(
                        (h) -> Q.try(() -> h.canHandle(req.to)))
                Q.all(usableHandlers).then((r) ->
                    console.log ('in then')
                    if r.length == 0
                        console.log('rejecting')
                        @emit 'message_reject',  {address: req.to}
                        console.log('we emitted rejection')

                        ack.reject
                    else
                        console.log('accepting')
                        @emit 'message_accept',  {address: req.to}
                        console.log('we emitted acceptance')
                        ack.accept
                    )
            )
        )

        server.listen(options["port"])
        
        
    

module.exports = LightSMTPServer

What exactly is the problem? Can you give me some sample input, output, etc for each of the variables?