Adding SMS functionality with Twilio

ScheduledPollFromSMSActor.scala

class ScheduledPollFromSMSActor extends Actor with ActorLogging {
  def receive = {
    case "check" => {
      // find all "unprocessed" SMSes
      val twilios = TwilioMongo.findAllUnprocessed()

      // we don't assume that users will send short SMSes in a short amount of time
      twilios.groupBy(t => t.smsdata("From")).map {
        case (mobile, data) => {
          // take the user's SMSes where they're 10 seconds from one another
          val first = data.head
          val inProximity = data.takeWhile(d => scala.math.abs(d.created - first.created) < 10000L)

          // assemble the entire SMS
          val entireSMS = inProximity.foldLeft("")((a, v) => {
            a + v.smsdata("Body")
          })

          val parsed = SMSParser(entireSMS)
          
          // <omitted> create poll, notify user, broadcast to other listeners...
          
          // mark as processed, or failed
          inProximity.map(twilioData => {
            TwilioMongo.update(twilioData.copy(status = parsed.map(_ => "processed").getOrElse("failed")))
          })
        }
      }
    }
  }
}

SMSParserSpec.scala

class SMSParserSpec extends Specification {
  
  // one hundred characters
  val h = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"
  // MORE than one hundred characters
  val h1 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789" + "!"
 
  // --
  
  "SMS Parser" should {
    
    "extract question and 2 answers" in {
      val poll = SMSParser("Was this sent via SMS? a. Yes, indeed. b. Nope!")
      
      poll.get.question.trim must equalTo("Was this sent via SMS?")
      poll.get.option_a.get.trim must equalTo("Yes, indeed.")
      poll.get.option_b.get.trim must equalTo("Nope!")
    }
    
    "default to Yes and No when no answers are specified" in {
      val poll = SMSParser("Cheese is da bomb!")
      
      poll.get.question must equalTo("Cheese is da bomb!")
      poll.get.option_a must beSome("Yes")
      poll.get.option_b must beSome("No")
    }
    
    "ignore the case of a and b" in {
      val poll = SMSParser("Was this sent via SMS? A. Yes, indeed. b. Nope!")
      
      poll.get.question must equalTo("Was this sent via SMS?")
      poll.get.option_a.get.trim must equalTo("Yes, indeed.")
      poll.get.option_b.get.trim must equalTo("Nope!")
    }
    
    "default b to 'No' if only a is specified" in {
      val poll = SMSParser("Was this sent via SMS? A. Yes, indeed.")
      
      poll.get.question must equalTo("Was this sent via SMS?")
      poll.get.option_a.get.trim must equalTo("Yes, indeed.")
      poll.get.option_b must beSome("No")
    }
    
    "default a to 'Yes' if only b is specified" in {
      val poll = SMSParser("Was this sent via SMS? B. This is only a dream.")
      
      poll.get.question must equalTo("Was this sent via SMS?")
      poll.get.option_a must beSome("Yes")
      poll.get.option_b.get.trim must equalTo("This is only a dream.")
    }
    
    "be invalid if only options were specified (i.e. no question)" in {
      SMSParser("A. Yes, indeed. B. This is only a dream.") must beNone
      SMSParser("A. Yes, indeed.") must beNone
      SMSParser("B. This is only a dream.") must beNone
    }
    
    "be invalid if nothing at all was specified" in {
      SMSParser("") must beNone
      SMSParser(" ") must beNone
      SMSParser("  ") must beNone
    }
    
    "reject the SMS if any/all fields are > 100" in {
      val poll = SMSParser("%s A. %s B. %s".format(h, h, h))
      poll.get.question must equalTo(h)
      poll.get.option_a must beSome(h)
      poll.get.option_b must beSome(h)
      
      SMSParser("%s A. %s B. %s".format(h1, h, h)) must beNone
      SMSParser("%s A. %s B. %s".format(h, h1, h)) must beNone
      SMSParser("%s A. %s B. %s".format(h, h, h1)) must beNone
      SMSParser("%s A. %s B. %s".format(h1, h1, h1)) must beNone
    }
  }
}

TwilioSMSFirst.scala

Map(
 ToCountry -> List(GB),
 ToState -> List(London),
 SmsMessageSid -> List(SMc508bc45e41be7ec3827ac6b9617fb62),
 ToCity -> List(),
 FromZip -> List(),
 SmsSid -> List(SMc508bc45e41be7ec3827ac6b9617fb62),
 FromState -> List(),
 SmsStatus -> List(received),
 FromCity -> List(),
 Body -> List(I don't have an iPhone, so I thought I'd build SMS functionality. A. Great, what about something that interprets smoke signals? B. Good, now get on with ),
 FromCountry -> List(GB),
 To -> List(+442033224667),
 ToZip -> List(),
 AccountSid -> List(AC78cccde86008c911f6ae6a1c575b575a),
 From -> List(+447446112182),
 ApiVersion -> List(2010-04-01))

TwilioSMSSecond.scala

Map(
 ToCountry -> List(GB),
 ToState -> List(London),
 SmsMessageSid -> List(SM3f5c6a4584270d38ccbd1641a7b83df4),
 ToCity -> List(),
 FromZip -> List(),
 SmsSid -> List(SM3f5c6a4584270d38ccbd1641a7b83df4),
 FromState -> List(),
 SmsStatus -> List(received),
 FromCity -> List(),
 Body -> List(the Android app already!),
 FromCountry -> List(GB),
 To -> List(+442033224667),
 ToZip -> List(),
 AccountSid -> List(AC78cccde86008c911f6ae6a1c575b575a),
 From -> List(+447446112182),
 ApiVersion -> List(2010-04-01))