handler.js

/*
 * Based on http://amzn.to/1LzFrj6
 */

var applicationId = "";
var clientkey = "";
var deviceid = "";
var ir = {
  on: {"format":"raw","freq":38,"data":[6648,3228,873,2368,873,873,968,968,873,968,873,968,968,968,968,968,873,968,968,968,873,968,873,968,968,968,968,2451,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,873,2451,873,873,873,2451,873,2451,873,2451,873,2451,873,2451,873,2451,873,873,873,2451,968,2368,968,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,873,873,968,873,968,873,968,968,968,968,968,873,968,873,968,873,873,968,968,968,2451,873,2451,873,968,873,968,968,2368,904,2368,904,2368,904,2368,904,904,904,904,904,2368,904,2368,904,904,904,904,904,904,904,2368,904,904,904,904,904,2368,904,904,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,2368,904,904,904,904,904,2368,904,2368,904,2368,904,904,904,2368,904,904,904,2368,904,2368,904,904,904,904,904,904,904,2368,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,873,873,873,873,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,2368,873,968,873,968,873,873,968,968,968,2451,873,873,873,873,873,873,873,2451,873,2451,873,2451,873,2451,873,873,873,2451,873,2451,873,873,873,873,873,968,873,2368,904,2368,904,2368,904,2368,904,904,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904]},
  off: {"format":"raw","freq":38,"data":[6648,3228,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,904,904,904,904,2368,904,2368,904,2368,904,2368,904,904,904,904,904,2368,904,2368,904,904,904,904,904,904,904,2368,904,904,904,904,904,2368,904,904,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,904,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,2368,904,2368,904,904,904,2368,904,2368,904,2368,904,904,904,904,904,2368,904,2368,904,2368,904,904,904,2368,904,904,904,2368,904,2368,904,904,904,904,904,904,904,2368,904,904,904,2368,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,815,968,968,968,968,968,815,968,815,968,968,968,968,968,968,2451,815,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,815,968,968,968,968,968,815,968,815,968,968,968,815,968,968,2451,815,2451,904,2451,815,2451,904,2451,815,2451,904,2451,904,2451,761,2537,904,2451,761,1037,761,1037,843,968,843,968,761,2537,761,1037,761,1037,761,1037,761,2537,761,2537,761,2537,761,2537,843,1002,843,2537,761,2537,761,1002,815,1002,815,1002,815,1002,815,2537,761,2537,761,2537,761,1002,815,2537,761,2537,761,2537,761,2537,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,1037,761,2537,761,2537,843,2537,761,2537,904,2451,761,2537,904,2451,904,2451,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904,904,904,2451,904,904,904,904,904,904,904,904,904,904,904,904,904,2451,904,904,904,2451,904,2451,904,2451,904,2451,904,2451,904,2451,904]}
};

// Route the incoming request based on type (LaunchRequest, IntentRequest,
// etc.) The JSON body of the request is provided in the event parameter.
exports.handler = function (event, context) {
  try {
    console.log("event.session.application.applicationId=" + event.session.application.applicationId);
    
    if (event.session.application.applicationId !== applicationId) {
      context.fail("Invalid Application ID");
      return;
    }

    if (event.session.new) {
      onSessionStarted({requestId: event.request.requestId}, event.session);
    }

    if (event.request.type === "LaunchRequest") {
      onLaunch(event.request,
               event.session,
               function callback(sessionAttributes, speechletResponse) {
                 context.succeed(buildResponse(sessionAttributes, speechletResponse));
               });
    } else if (event.request.type === "IntentRequest") {
      onIntent(event.request,
               event.session,
               function callback(sessionAttributes, speechletResponse) {
                 context.succeed(buildResponse(sessionAttributes, speechletResponse));
               });
    } else if (event.request.type === "SessionEndedRequest") {
      onSessionEnded(event.request, event.session);
      context.succeed();
    }
  } catch (e) {
    context.fail("Exception: " + e);
  }
};

/**
 * Called when the session starts.
 */
function onSessionStarted(sessionStartedRequest, session) {
  console.log("onSessionStarted requestId=" + sessionStartedRequest.requestId +
              ", sessionId=" + session.sessionId);
}

/**
 * Called when the user launches the skill without specifying what they want.
 */
function onLaunch(launchRequest, session, callback) {
  console.log("onLaunch requestId=" + launchRequest.requestId +
              ", sessionId=" + session.sessionId);

  // Dispatch to your skill's launch.
  getWelcomeResponse(callback);
}

/**
 * Called when the user specifies an intent for this skill.
 */
function onIntent(intentRequest, session, callback) {
  console.log("onIntent requestId=" + intentRequest.requestId +
              ", sessionId=" + session.sessionId);

  var intent = intentRequest.intent,
      intentName = intentRequest.intent.name;

  // Dispatch to your skill's intent handlers
  if ("ControlAC" === intentName) {
    onControlACIntent(intent, session, callback);
  }
  else if ("AMAZON.HelpIntent" === intentName) {
    getWelcomeResponse(callback);
  }
  else if ("AMAZON.StopIntent" === intentName) {
    var speechOutput = "Turned off the air conditioner";
    var repromptText = "";
    var cardTitle = "Stop";
    var shouldEndSession = true;
    onControlOff(function () {
      callback({},
               buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
    });
  }
  else if ("AMAZON.CancelIntent" === intentName) {
    handleSessionEndRequest(callback);
  }
  else {
    throw "Invalid intent";
  }
}

/**
 * Called when the user ends the session.
 * Is not called when the skill returns shouldEndSession=true.
 */
function onSessionEnded(sessionEndedRequest, session) {
  console.log("onSessionEnded requestId=" + sessionEndedRequest.requestId +
              ", sessionId=" + session.sessionId);
  // Add cleanup logic here
}

// --------------- Functions that control the skill's behavior -----------------------

function getWelcomeResponse(callback) {
  // If we wanted to initialize the session to have some attributes we could add those here.
  var sessionAttributes = {};
  var cardTitle = "Welcome";
  var speechOutput = "Welcome to the IRKit skill. " +
        "Please tell me to turn on or off the air conditioner";
  // If the user either does not reply to the welcome message or says something that is not
  // understood, they will be prompted again with this text.
  var repromptText = "Please tell me to turn on or off the air conditioner";
  var shouldEndSession = false;

  callback(sessionAttributes,
           buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
}

function handleSessionEndRequest(callback) {
  var cardTitle = "Session Ended";
  var speechOutput = "Thank you for trying the IRKit skill. Have a nice day!";
  // Setting this to true ends the session and exits the skill.
  var shouldEndSession = true;

  callback({}, buildSpeechletResponse(cardTitle, speechOutput, null, shouldEndSession));
}

function onControlACIntent(intent, session, callback) {
  var cardTitle = intent.name;
  var controlSlot = intent.slots.Control;
  var repromptText = "";
  var sessionAttributes = {};
  var shouldEndSession = true;
  var speechOutput = "";

  if (controlSlot) {
    var control = controlSlot.value.toLowerCase();
    if (control == "on" ||
        control == "start") {
      speechOutput = "Turned on the air conditioner";
      repromptText = "";
      onControlOn(function () {
        callback(sessionAttributes,
                 buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
      });
    }
    else {
      speechOutput = "Turned off the air conditioner";
      repromptText = "";
      onControlOff(function () {
        callback(sessionAttributes,
                 buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
      });
    }
  } else {
    speechOutput = "I'm not sure what you meant. Please try again";
    repromptText = "Please tell me to turn on or off the air conditioner";
    callback(sessionAttributes,
             buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
  }
}

function onControlOn(callback) {
  sendIR(ir.on, callback);
}

function onControlOff(callback) {
  sendIR(ir.off, callback);
}

function sendIR(ir, callback) {
  var https = require("https");
  var qs = require("querystring");
  var postData = qs.stringify({
    clientkey: clientkey,
    deviceid: deviceid,
    message: JSON.stringify(ir)
  });
  var req = https.request({
    host: "api.getirkit.com",
    path: "/1/messages",
    method: "POST",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded; charset=utf-8",
      "Content-Length": postData.length
    }
  }, function (res) {
    console.log("res.statusCode=" + res.statusCode);
    callback();
  });
  req.write(postData);
  req.end();
}

// --------------- Helpers that build all of the responses -----------------------

function buildSpeechletResponse(title, output, repromptText, shouldEndSession) {
  return {
    outputSpeech: {
      type: "PlainText",
      text: output
    },
    card: {
      type: "Simple",
      title: "SessionSpeechlet - " + title,
      content: "SessionSpeechlet - " + output
    },
    reprompt: {
      outputSpeech: {
        type: "PlainText",
        text: repromptText
      }
    },
    shouldEndSession: shouldEndSession
  };
}

function buildResponse(sessionAttributes, speechletResponse) {
  return {
    version: "1.0",
    sessionAttributes: sessionAttributes,
    response: speechletResponse
  };
}