htd-lync/reference/dev/lyncapp/assets/www/js/socket.js

This library is meant to be used to interact with an HTD Lync 12

var socket;

document.addEventListener('deviceready', function onDeviceReady() {
  connectToTCPSocket();
  createZoneList();
  createVolumeBar(1);
}, false);


//TODO - put back
//setInterval(checkTimeLastMessage, 1000);

function checkTimeLastMessage() {
  var difference = new Date() - timeLastMessage;
  if (difference > 30000 && lastPage == "home") {
    timeLastMessage = new Date();
    //TODO Test closing the socket before reloading page.
    closeTCPSocket();
    window.location.reload(true);
  }
}

var firstLoadSocket = true;
var lastMsg;
var lastCommand;

var socketTCP;
var socketTcpId;

var timeLastMessage = new Date();

function wsSendBinary(command, hasCRCAlready) {
  //Pass this function an array of hex values.
  timeLastMessage = new Date();
  if (!controllerConnected) {
    console.log("Controller is offline");
  }

  //Add the checksum
  if (!hasCRCAlready) {
    var withCRC = addCRC(command);
    console.log("Sending: " + withCRC)
  } else {
    var withCRC = command;
  }
  //Format as a string
  var hexValInput = formatHexString(withCRC)

  var byteArray = new Uint8Array(hexValInput.length);
  if (hexValInput.length % 2 != 0) {
    var sendArray = new Uint8Array((hexValInput.length + 1) / 2);

  } else {
    var sendArray = new Uint8Array(hexValInput.length / 2);
  }
  var i;
  byteArray = hexValInput;

  for (i = 0; i < sendArray.length; i++) {
    if ((byteArray[i * 2] >= '0' && byteArray[i * 2] <= '9') || (byteArray[i * 2] >= 'A' && byteArray[i * 2] <= 'F') || (byteArray[i * 2] >= 'a' && byteArray[i * 2] <= 'f')) {
      sendArray[i] = parseInt(byteArray[i * 2], 16) * 16 + parseInt(byteArray[i * 2 + 1], 16);
    } else
      console.log('Can not transfer into HEX format!');
  }

  //Here I push the command into a buffer array.
  commandBuffer.push(sendArray);
}

function sendOverTCPSocket(sendDT) {

  var buf = new ArrayBuffer(sendDT.length);
  var bufView = new Uint8Array(buf);

  for (i = 0; i < sendDT.length; i++) {
    bufView[i] = sendDT[i];
  }
  console.log("Sending to TCP Socket: " + bufView);

  chrome.sockets.tcp.setPaused(socketTcpId, false, function(result3) {})

  chrome.sockets.tcp.send(socketTcpId, buf);
}

function closeTCPSocket() {
  console.log("close TCP socket")
  controllerConnected = false;
  $("#connectedCircle").attr("src", "images/redCircle.png");
  chrome.sockets.tcp.close(socketTcpId);
  chrome.sockets.tcp.disconnect(socketTcpId);
  $("#redBar").show();
  //firstLoadSocket = true;
}


function checkRedBar() {
  if (controllerConnected == false) {
    $('#redBar').show();
  }
}

function connectToTCPSocket() {
  //This creates the TCP connection. It does it on page load.

  chrome.sockets.tcp.create({}, function(createInfo) {
    socketTcpId = createInfo.socketId;
    console.log("connecting to tcp socket", systems[systemIdx].system.ip, systems[systemIdx].system.port, socketTcpId);
    setTimeout(checkRedBar, 1000)
    chrome.sockets.tcp.connect(socketTcpId, systems[systemIdx].system.ip, systems[systemIdx].system.port * 1, function(result) {
      // chrome.sockets.tcp.setKeepAlive(socketTcpId, true, 500, function(result2) {
      //   console.log("keep alive: " + result2)
      // })
      chrome.sockets.tcp.setPaused(socketTcpId, false, function(result3) {
        console.log("set paused: " + result3)
      })
      if (result === 0) {
        $("#connectedCircle").attr("src", "images/whiteCircle.png");
        $('#redBar').hide();
        if (firstLoadSocket) {
          firstLoadSocket = false;
          sOpen();
        }
        controllerConnected = true;

        /// connection ok, send the packet
      } else {
        console.log("connection failed", socketTcpId, systems[systemIdx].system.ipp)
        $("#connectedCircle").attr("src", "images/redCircle.png");
        $('#redBar').show();
      }
    });
    chrome.sockets.tcp.onReceiveError.addListener(function(error) {

      //// This listens for errors on receive. It never occurs.
      console.log("TCP error: ", JSON.stringify(error));
      controllerConnected = false;
      $("#connectedCircle").attr("src", "images/redCircle.png");
      $('#redBar').show();
      chrome.sockets.tcp.close(socketTcpId);
      chrome.sockets.tcp.disconnect(socketTcpId);

      window.location.href = 'index2.html'

    });
    chrome.sockets.tcp.onReceive.addListener(function(info) {
      try {
        /// This handels the incoming messages and converts them to HEX format.
        var dat = arrayBuffer2HEX(info.data);
        timeLastMessage = new Date();
        lastMsg = dat;
        //check for grouped messages. source names come grouped.
        var msgData = dat.split(" ");
        console.log("------------Received HEX: " + dat);

        var tempStr = dat;
        checkForSplits(tempStr);

      } catch (e) {
        console.log("catch error: ", e)
      }
    });
  });
}

function checkForSplits(tempStr) {
  //console.log("--CHECK FOR SPLITS---")
  //new split logic
  var splitChars = ['1 ', '2 ', '3 ', '4 ', '5 ', '6 ', '7 ', '8 ', '9 ', 'a ', 'b ', 'c ', 'd ', 'e ', 'f '] //removed 0

  var tempArr = [];

  //find first split
  var idx = tempStr.length;
  for (var i = 0; i < splitChars.length; i++) {
    var idx2 = tempStr.indexOf(" 2 0 " + splitChars[i]);

    //handle multiples of the same type
    var indices = getIndicesOf(" 2 0 " + splitChars[i], tempStr);
    //console.log(indicies)
    if (indices.length > 1) {
      idx2 = indices[1];
    }
    //logic to find the first split.
    if (idx2 < idx && idx2 > 0) { //make sure its not finding the first one
      //console.log(idx2);
      idx = idx2;
    }
  }

  //console.log("final IDX: " + idx)
  if (idx < tempStr.length) {
    //console.log("We have a message that needs splitting:" + idx + ":" + tempStr.length)

    //process the first message
    var splitMsg = tempStr.slice(1, idx);
    //console.log("1st Message: " + splitMsg);
    obj = splitMsg.split(" ");
    processMessage(obj);

    //get remaining message
    var remainingMsg = tempStr.slice(idx, tempStr.length);
    //console.log("remaining msg: " + remainingMsg);
    //console.log(idx + ":" + tempStr.length)
    checkForSplits(remainingMsg);
  } else {
    //console.log("complete message: " + tempStr);
    //tempStr = tempStr.slice(1, tempStr.length);
    obj = tempStr.split(" ");
    if (obj[0] == "") {
      obj.shift();
    }
    processMessage(obj);
  }
}

function getIndicesOf(searchStr, str) {
  var searchStrLen = searchStr.length;
  if (searchStrLen == 0) {
    return [];
  }
  var startIndex = 0,
    index, indices = [];

  while ((index = str.indexOf(searchStr, startIndex)) > -1) {
    indices.push(index);
    startIndex = index + searchStrLen;
  }
  return indices;
}


function sOpen() {
  //When the socket opens, this runs. It asks for the ID of the system.
  //After we receive the ID (different file), it requests more data.
  console.log('connect success! sOpen');
  controllerConnected = true;
  getFirmware();
  getID();

  setInterval(getFirmware, 30000)
  setTimeout(setDoorbell, 45000);
}

var controllerConnected = false;

function sError() {
  console.log('connect error');
  $('#pageName').addClass("red")
}


function checkForMassMessage(dat) {
  console.log("check for mass message");
  var mp3Name = dat.indexOf('2 0 0 12');
  //console.log("mp3Name", mp3Name)
  if (mp3Name > 1) {
    var data = dat.split('2 0 0 12');
    data[1] = "2 0 0 12" + data[1];
    //console.log(data);
    for (var i = 0; i < 2; i++) {
      var dataString = formatHexString(data[i]);
      dataString = dataString.split(" ");
      if (dataString.length > 5) {

        //var passCRC = checkCRC(dataString);
        //if (passCRC) {
        processMessage(dataString);
        //}
      }
    }
    return;
  }
  for (var i = 1; i < 14; i++) {
    var subStr = dat.split("2 0 " + i.toString(16))[0];
    dat = "2 0 " + i.toString(16) + dat.split("2 0 " + i.toString(16))[1];

    var dataString = formatHexString(subStr);
    dataString = dataString.split(" ");
    if (dataString.length > 5) {
      processMessage(dataString);
    }
  }

}

function sClose() {
  console.log('connect close')
  controllerConnected = false;
  $('#pageName').addClass("red")
  setTimeout(connectx, 500);
}

function checkCRC(hexArray, hideLog) {
  //var hexValInput = ["02", "00", "00", "6E", "00"];
  if (hexArray.length < 3) {
    console.log("Message too short");
    console.log(hexArray);
    return;
  }
  var index;
  var checksum = 0;
  //console.log(hexArray);
  for (index = 0; index < hexArray.length - 2; index++) {
    checksum += parseInt(hexArray[index], 16);
    //console.log(checksum);
  }
  var checkSumString = checksum.toString(16);
  checkSumString = checkSumString.toLowerCase();
  //console.log("checksumString:" + checkSumString, checkSumString.length);
  if (checkSumString.length > 2) {
    checkSumString = checkSumString.slice(checkSumString.length - 2, checkSumString.length);
    //console.log(checkSumString)
  }

  var CRCpass = false;

  var checksumRcvd = hexArray[hexArray.length - 2];
  if (checksumRcvd.length == 1) {
    checksumRcvd = "0" + checksumRcvd;
  }
  if (checksumRcvd == checkSumString) {
    CRCpass = true;
  } else {
    if (!hideLog) {
      console.log("Bad checksum received-------------------------------------------");
      console.log("checksum received", hexArray[hexArray.length - 2], "calculated checksum", checkSumString);
      var dataString = formatHexString(hexArray);
      console.log(dataString);
      console.log("-------------------------------------------");
    }
    //check for allowed commands for it to pass
    if (hexArray[0] == "4c" || hexArray[hexArray.length - 2] == 0 || hexArray[3] == "11") {
      console.log("Allowed to pass")
      CRCpass = true;
    }
  }
  return CRCpass;
}


function addCRC(hexArray) {
  //var hexValInput = ["02", "00", "00", "6E", "00"];
  var index;
  var checksum = 0;

  for (index = 0; index < hexArray.length; index++) {
    checksum += parseInt(hexArray[index], 16);
  }
  var checkSumString = checksum.toString(16);
  checkSumString = checkSumString.toUpperCase();
  //console.log("checksumString:" + checkSumString, checkSumString.length);
  if (checkSumString.length > 2) {
    checkSumString = checkSumString.slice(checkSumString.length - 2, checkSumString.length);
    //console.log(checkSumString)
  }

  if (checkSumString.length == 1) {
    checkSumString = "0" + checkSumString;
  }
  //console.log(checkSumString.toString(16))
  hexArray.push(checkSumString);
  //console.log(hexArray)
  return hexArray;
  //  console.log(checksum);

}

function formatHexString(hexArray) {
  var hexString = ""
  for (i = 0; i < hexArray.length; i++) {
    //console.log(hexArray[i])
    if (hexArray.length == 1) {
      hexString += "0" + hexArray[i]
    } else {
      hexString += hexArray[i];
    }
  }
  //console.log(hexString);
  return (hexString);
}

var commandBufferTime = 175;
var commandBuffer = [];
handleSendBuffer();

function handleSendBuffer() {
  //This runs ever 50ms. It checks if the system is connected, then checks if there are any commands to send.
  //console.log("controllerConnected:" + controllerConnected)
  if (commandBuffer[0] && controllerConnected) {
    //$('.bottom-buttons-connected').addClass("green");
    $("#connectedCircle").attr("src", "images/greenCircle.png");
    console.log("Sending Buffer to Controller: " + commandBuffer[0])
    console.log("Command Buffer length: " + commandBuffer.length)
    //socket.send(commandBuffer[0]);
    sendOverTCPSocket(commandBuffer[0]);
    commandBuffer.shift();
  } else if (commandBuffer.length == 0 && controllerConnected) {
    //$('.bottom-buttons-connected').removeClass("green");
    $("#connectedCircle").attr("src", "images/whiteCircle.png");
  }
  setTimeout(handleSendBuffer, commandBufferTime);
}