Added decoding of messages

Also moved things out to their own files and setup require()s to bring it all together.

index.js

@@ -1,45 +1,7 @@
 var dgram = require('dgram');
 var net = require('net');
-const SmartBuffer = require('smart-buffer').SmartBuffer;
 const EventEmitter = require('events');
-
+const messages = require('./messages');
-class SLMessage extends SmartBuffer {
-  constructor(senderId, messageId) {
-    super();
-    this.writeUInt16LE(senderId);
-    this.writeUInt16LE(messageId);
-
-    this._wroteSize = false;
-  }
-
-  toBuffer() {
-    if (this._wroteSize === false) {
-      this.insertInt32LE(this.length - 4, 4);
-      this._wroteSize = true;
-    } else {
-      this.writeInt32LE(this.length - 8, 4);
-    }
-
-    return super.toBuffer();
-  }
-
-  writeSLString(str) {
-    this.writeInt32LE(str.length);
-    this.writeString(str);
-    this.skip(4 - (str.length % 4));
-  }
-
-  writeSLBuffer(buf) {
-    this.writeInt32LE(buf.length);
-    this.writeBuffer(buf);
-  }
-
-  skip(num) {
-    if (num > 0) {
-      this.writeBuffer(Buffer.alloc(num));
-    }
-  }
-}
 
 class FindUnits extends EventEmitter {
   constructor() {
@@ -124,44 +86,22 @@ class UnitConnection extends EventEmitter {
     this.client.write('CONNECTSERVERHOST\r\n\r\n');
 
     console.log('sending challenge message...');
-    var buf = new SLMessage(0, 14);
+    this.client.write(new messages.SLChallengeMessage().toBuffer());
-    this.client.write(buf.toBuffer());
   }
 
   login() {
     console.log('sending login message...');
-    var buf = new SLMessage(0, 27);
+    this.client.write(new messages.SLLoginMessage().toBuffer());
-    buf.writeInt32LE(348); // schema
-    buf.writeInt32LE(0); // connection type
-    buf.writeSLString('ScreenLogicConnect library'); // version
-    buf.writeSLBuffer(Buffer.alloc(16)); // encoded password. empty/unused for local connections
-    buf.writeInt32LE(2); // procID
-    this.client.write(buf.toBuffer());
   }
 
   getPoolStatus() {
     console.log('sending pool status query...');
-    var buf = new SLMessage(0, 12526);
+    this.client.write(new messages.SLPoolStatusMessage().toBuffer());
-    buf.writeInt32LE(0);
-    this.client.write(buf.toBuffer());
-  }
-
-  parsePoolStatus(msg) {
-    // todo: actually parse the message
-    this.emit('poolStatus', {});
   }
 
   getControllerConfig() {
     console.log('sending controller config query...');
-    var buf = new SLMessage(0, 12532);
+    this.client.write(new messages.SLControllerConfigMessage().toBuffer());
-    buf.writeInt32LE(0);
-    buf.writeInt32LE(0);
-    this.client.write(buf.toBuffer());
-  }
-
-  parseControllerConfig(msg) {
-    // todo: actually parse the message
-    this.emit('controllerConfig', {});
   }
 
   onClientMessage(msg) {
@@ -175,10 +115,10 @@ class UnitConnection extends EventEmitter {
       this.emit('loggedIn');
     } else if (msgType === 12527) {
       console.log("  it's pool status");
-      this.parsePoolStatus(msg);
+      this.emit('poolStatus', new messages.SLPoolStatusMessage(msg));
     } else if (msgType === 12533) {
       console.log("  it's controller configuration");
-      this.parseControllerConfig(msg);
+      this.emit('controllerConfig', new messages.SLControllerConfigMessage(msg));
     }
   }
 }
@@ -191,6 +131,5 @@ for (const value of buf.values()) {
 
 module.exports = {
   FindUnits,
-  SLMessage,
   UnitConnection
 }

messages/SLChallengeMessage.js

@@ -0,0 +1,7 @@
+const SLMessage = require('./SLMessage.js').SLMessage;
+
+exports.SLChallengeMessage = class SLChallengeMessage extends SLMessage {
+  constructor() {
+    super(0, 14);
+  }
+}

messages/SLControllerConfigMessage.js

@@ -0,0 +1,78 @@
+const SLMessage = require('./SLMessage.js').SLMessage;
+
+exports.SLControllerConfigMessage = class SLControllerConfigMessage extends SLMessage {
+  constructor(buf) {
+    super(0, 12532);
+    if (!buf) {
+      this.writeInt32LE(0);
+      this.writeInt32LE(0);
+    } else {
+      this._wroteSize = true;
+      this.writeBuffer(buf, 0);
+
+      this.decode();
+    }
+  }
+
+  decode() {
+    super.decode();
+
+    this.controllerId = this.readInt32LE();
+
+    this.minSetPoint = new Array(2);
+    this.maxSetPoint = new Array(2);
+    for (let i = 0; i < 2; i++) {
+      this.minSetPoint[i] = this.readUInt8();
+      this.maxSetPoint[i] = this.readUInt8();
+    }
+
+    this.degC = this.readUInt8();
+    this.controllerType = this.readUInt8();
+    this.hwType = this.readUInt8();
+    this.controllerData = this.readUInt8();
+    this.equipFlags = this.readInt32LE();
+    this.genCircuitName = this.readSLString();
+
+    let circuitCount = this.readInt32LE();
+    this.bodyArray = new Array(circuitCount);
+    for (let i = 0; i < circuitCount; i++) {
+      this.bodyArray[i] = {
+        circuitId: this.readInt32LE(),
+        name: this.readSLString(),
+        nameIndex: this.readUInt8(),
+        function: this.readUInt8(),
+        interface: this.readUInt8(),
+        flags: this.readUInt8(),
+        colorSet: this.readUInt8(),
+        colorPos: this.readUInt8(),
+        colorStagger: this.readUInt8(),
+        deviceId: this.readUInt8(),
+        dfaultRt: this.readUInt16LE(),
+        pad1: this.readUInt8(),
+        pad2: this.readUInt8()
+      }
+    }
+
+    let colorCount = this.readInt32LE();
+    this.colorArray = new Array(colorCount);
+    for (let i = 0; i < colorCount; i++) {
+      this.colorArray[i] = {
+        name: this.readSLString(),
+        color: {
+          r: this.readInt32LE() & 0xFF,
+          g: this.readInt32LE() & 0xFF,
+          b: this.readInt32LE() & 0xFF
+        }
+      }
+    }
+
+    let pumpCircCount = 8;
+    this.pumpCircArray = new Array(pumpCircCount);
+    for (let i = 0; i < pumpCircCount; i++) {
+      this.pumpCircArray[i] = this.readUInt8();
+    }
+
+    this.interfaceTabFlags = this.readInt32LE();
+    this.showAlarms = this.readInt32LE();
+  }
+}

messages/SLLoginMessage.js

@@ -0,0 +1,12 @@
+const SLMessage = require('./SLMessage.js').SLMessage;
+
+exports.SLLoginMessage = class SLLoginMessage extends SLMessage {
+  constructor() {
+    super(0, 27);
+    this.writeInt32LE(348); // schema
+    this.writeInt32LE(0); // connection type
+    this.writeSLString('node-screenlogic'); // version
+    this.writeSLBuffer(Buffer.alloc(16)); // encoded password. empty/unused for local connections
+    this.writeInt32LE(2); // procID
+  }
+}

messages/SLMessage.js

@@ -0,0 +1,57 @@
+const SmartBuffer = require('smart-buffer').SmartBuffer;
+
+exports.SLMessage = class SLMessage extends SmartBuffer {
+  constructor(senderId, messageId) {
+    super();
+    this.writeUInt16LE(senderId);
+    this.writeUInt16LE(messageId);
+
+    this._wroteSize = false;
+  }
+
+  toBuffer() {
+    if (this._wroteSize === false) {
+      this.insertInt32LE(this.length - 4, 4);
+      this._wroteSize = true;
+    } else {
+      this.writeInt32LE(this.length - 8, 4);
+    }
+
+    return super.toBuffer();
+  }
+
+  writeSLString(str) {
+    this.writeInt32LE(str.length);
+    this.writeString(str);
+    if (str.length % 4 != 0) {
+      this.skipWrite(4 - (str.length % 4));
+    }
+  }
+
+  readSLString() {
+    var len = this.readInt32LE();
+    var str = this.readString(len);
+    if (len % 4 != 0) {
+      this.readOffset += 4 - (len % 4);
+    }
+    return str;
+  }
+
+  writeSLBuffer(buf) {
+    this.writeInt32LE(buf.length);
+    this.writeBuffer(buf);
+  }
+
+  skipWrite(num) {
+    if (num > 0) {
+      this.writeBuffer(Buffer.alloc(num));
+    }
+  }
+
+  decode() {
+    this.readOffset = 0;
+    this.senderId = this.readUInt16LE();
+    this.messageId = this.readUInt16LE();
+    this.dataLength = this.readInt32LE();
+  }
+}

messages/SLPoolStatusMessage.js

@@ -0,0 +1,70 @@
+const SLMessage = require('./SLMessage.js').SLMessage;
+
+exports.SLPoolStatusMessage = class SLPoolStatusMessage extends SLMessage {
+  constructor(buf) {
+    super(0, 12526);
+    if (!buf) {
+      this.writeInt32LE(0);
+    } else {
+      this._wroteSize = true;
+      this.writeBuffer(buf, 0);
+
+      this.decode();
+    }
+  }
+
+  decode() {
+    super.decode();
+
+    this.ok = this.readInt32LE();
+    this.freezeMode = this.readUInt8();
+    this.remotes = this.readUInt8();
+    this.poolDelay = this.readUInt8();
+    this.spaDelay = this.readUInt8();
+    this.cleanerDelay = this.readUInt8();
+    this.readOffset += 3;
+    this.airTemp = this.readInt32LE();
+
+    let bodiesCount = this.readInt32LE();
+    if (bodiesCount > 2) {
+      bodiesCount = 2;
+    }
+    this.currentTemp = new Array(bodiesCount);
+    this.heatStatus = new Array(bodiesCount);
+    this.setPoint = new Array(bodiesCount);
+    this.coolSetPoint = new Array(bodiesCount);
+    this.heatMode = new Array(bodiesCount);
+    for (let i = 0; i < bodiesCount; i++) {
+      let bodyType = this.readInt32LE();
+      if (bodyType < 0 || bodyType >= 2) {
+        bodyType = 0;
+      }
+      this.currentTemp[bodyType] = this.readInt32LE();
+      this.heatStatus[bodyType] = this.readInt32LE();
+      this.setPoint[bodyType] = this.readInt32LE();
+      this.coolSetPoint[bodyType] = this.readInt32LE();
+      this.heatMode[bodyType] = this.readInt32LE();
+    }
+
+    let circuitCount = this.readInt32LE();
+    this.circuitArray = new Array(circuitCount);
+    for (let i = 0; i < circuitCount; i++) {
+      this.circuitArray[i] = {
+        id: this.readInt32LE(),
+        state: this.readInt32LE(),
+        colorSet: this.readUInt8(),
+        colorPos: this.readUInt8(),
+        colorStagger: this.readUInt8(),
+        delay: this.readUInt8()
+      }
+    }
+
+    this.pH = this.readInt32LE();
+    this.orp = this.readInt32LE();
+    this.saturation = this.readInt32LE();
+    this.saltPPM = this.readInt32LE();
+    this.pHTank = this.readInt32LE();
+    this.orpTank = this.readInt32LE();
+    this.alarms = this.readInt32LE();
+  }
+}

messages/index.js

@@ -0,0 +1,4 @@
+exports.SLPoolStatusMessage = require("./SLPoolStatusMessage.js").SLPoolStatusMessage;
+exports.SLControllerConfigMessage = require("./SLControllerConfigMessage.js").SLControllerConfigMessage;
+exports.SLChallengeMessage = require("./SLChallengeMessage.js").SLChallengeMessage;
+exports.SLLoginMessage = require("./SLLoginMessage.js").SLLoginMessage;

package.json

@@ -5,6 +5,7 @@
 	"main": "index.js",
 	"license": "MIT",
 	"repository": "https://github.com/parnic/ScreenLogicConnect-NodeJS.git",
+	"main": "index.js",
 	"dependencies": {
 		"smart-buffer": "~4.0.1"
 	}

test.js

@@ -7,7 +7,12 @@ finder.on('serverFound', function(server) {
     this.getPoolStatus();
     this.getControllerConfig();
   }).on('poolStatus', function(status) {
+    console.log(" pool ok=" + status.ok);
+    console.log(" air temp=" + status.airTemp);
+    console.log(" salt ppm=" + status.saltPPM * 50);
+    console.log(" pH=" + status.pH / 100);
   }).on('controllerConfig', function(config) {
+    console.log(" controller is in celsius=" + config.degC);
     client.close();
     finder.close();
   });