Node.js - Spokes JavaScript On Your Desktop

var SpokesJS = require('./spokes'); 
var spokes = null; //spokes session manager (class defined in spokes.js)  
var plugin_registered = false;  
var plugin_name = "NodeSpokes";  
     
 //------------------------------------------------  
 // connectToSpokes - attempt to create a new Spokes session manager, register this app,  
 //      and get a valid device to work with. Begin polling for events on success.  
 //------------------------------------------------  
 var connectToSpokes = function()  
 {  
	  //attempt to make a new Spokes object with localhost:32001/Spokes as the base url path for REST calls  
	  spokes = new SpokesJS.Spokes("http://localhost:32001/Spokes");  
	  spokes.Device.deviceList( function(result)  
	  {  
		   //on success...  
		   if(!result.isError)  
		   {  
				//on valid device found...  
				if(result.Result[0] !== null)  
				{  
					 //attempt to connect to the valid device and start polling for events from it.  
					 spokes.Device.attach(result.Result[0].Uid, controlInterface);  
					 pollDeviceEvents();  
				}  
				else  
				{  
					 console.log("Error: Device was null on connecting to Spokes. Is there a Plantronics device connected?");  
				}  
		   }  
		   else  
		   {  
				console.log("Error connecting to Spokes.");  
		   }  
	  });  
 };  
 //------------------------------------------------  
 // controllerInterface - callback function to that registers this app on successful contact with a valid device.  
 //------------------------------------------------  
 var controlInterface = function(session)  
 {  
	  //if an error popped up in our session or we failed to connect with a device...  
	  if(session.isError || !spokes.Device.isAttached)  
	  {  
		   console.log("Session Registration Error");  
	  }  
	  else  
	  {  
		   registerPlugin();  
	  }  
 };  
 //------------------------------------------------  
 // registerPlugin - where the actual dirty work is done for app registration.  
 //------------------------------------------------  
 var registerPlugin = function()  
 {  
	  //only register if we haven't done so already...  
	  if(!plugin_registered)  
	  {  
		   spokes.Plugin.register(plugin_name, function(result)  
		   {  
				if(!result.isError)  
				{  
					 //successfully registered the plugin. Set status of plugin to active.  
					 spokes.Plugin.isActive(plugin_name, true, function(result)  
					 {  
						  if(!result.isError)  
						  {  
							   plugin_registered = true;   
						  }  
						  else  
						  {  
							   console.log("Error checking if plugin is active: " + result.Err.Description);  
						  }  
					 });  
				}  
				else  
				{  
					 console.log("Error registering plugin: " + result.Err.Description);   
				}  
		   });  
	  }  
 };  
 //------------------------------------------------  
 // pollDeviceEvents - regularly ask the Spokes service for new, if any, events to work with.   
 //      This is the main program loop where all the program-specific work will be done.  
 //------------------------------------------------  
 var pollDeviceEvents = function()  
 {  
	  setInterval(function()  
	  {  
		   if(spokes === null || !spokes.Device.isAttached)  
		   {  
				return;  
		   }  
		   //ask for events, if any  
		   spokes.Device.events(function(result)  
		   {  
				var i;   
				if(result.isError)  
				{  
					 console.log("Error polling for events: " + result.Err.Description);   
				}  
				else  
				{  
					 //we have one or more events!   
					 if(result.Result.length > 0)  
					 {  
						  i = 0;  
		
						  //iterate over the events while we haven't hit the end of the array of events returned  
						  while(i < result.Result.length)  
						  {  
							   //the meat of our logic. Do unique actions based on event received.  
							   //See SessionCallState() in Spokes.js for a detailed list of events  
							   console.log(result.Result[i].Event_Name); 
							 
							   i++; //increment counter so we're not stuck in an infinite loop  
						  }  
					 }  
				}  
		   }); 
	  }, 2000); //repeat this loop every 2 seconds.  
 };
 
 connectToSpokes();