Use a basic time tracker instead of Date manipulation

.gitignore

@@ -1,2 +1,3 @@
 node_modules/
 *.log
+.idea/

lib/mojang_services.js

@@ -1,6 +1,7 @@
 var request = require('request');
 
 var logger = require('./logger');
+var profiler = require('./profiler');
 
 var serviceNameLookup = {
 	'minecraft.net': 'Website',
@@ -24,7 +25,7 @@ function updateService(name, status) {
 
 		// If it's an outage, track when it started.
 		if (status === 'yellow'|| status === 'red') {
-			newEntry.startTime = (new Date).getTime();
+			newEntry.startTime = profiler.getCurrentTimeMs();
 		}
 
 		// Generate a nice title from the color.

lib/ping.js

@@ -1,9 +1,11 @@
 var mcpe_ping = require('mcpe-ping');
 var mcpc_ping = require('mc-ping-updated');
 
+var profiler = require('./profiler');
+
 // This is a wrapper function for mc-ping-updated, mainly used to convert the data structure of the result.
 function pingMinecraftPC(host, port, timeout, callback) {
-	var milliseconds = (new Date).getTime();
+    profiler.track(host);
 
 	// Try catch incase the down stream module is bad at handling exceptions.
 	try {
@@ -18,7 +20,7 @@ function pingMinecraftPC(host, port, timeout, callback) {
 						max: res.players.max
 					},
 					version: res.version.protocol,
-					latency: (new Date).getTime() - milliseconds
+					latency: profiler.untrack(host)
 				});
 		    }
 		}, timeout);	
@@ -29,7 +31,7 @@ function pingMinecraftPC(host, port, timeout, callback) {
 
 // This is a wrapper function for mcpe-ping, mainly used to convert the data structure of the result.
 function pingMinecraftPE(host, port, timeout, callback) {
-	var milliseconds = (new Date).getTime();
+	profiler.track(host);
 		
 	// Try catch incase the down stream module is bad at handling exceptions.
 	try {
@@ -44,7 +46,7 @@ function pingMinecraftPE(host, port, timeout, callback) {
 						max: res.maxPlayers
 					},
 					version: res.version,
-					latency: (new Date).getTime() - milliseconds
+					latency: profiler.untrack(host)
 				});
 			}
 		}, timeout);

lib/profiler.js

@@ -0,0 +1,31 @@
+var logger = require('./logger');
+
+var timestamps = {};
+
+function getCurrentTimeMs() {
+    return (new Date).getTime();
+};
+
+exports.track = function(name) {
+    if (timestamps[name]) {
+        throw new Error(name + ' is already being profiled!');
+    }
+
+    timestamps[name] = getCurrentTimeMs();
+};
+
+exports.untrack = function(name) {
+    if (!timestamps[name]) {
+        throw new Error(name + ' isn\'t being profiled!');
+    }
+
+    var timestamp = getCurrentTimeMs() - timestamps[name];
+
+    delete timestamps[name];
+
+    logger.log('debug', name + ' took ' + timestamp + 'ms');
+
+    return timestamp;
+};
+
+exports.getCurrentTimeMs = getCurrentTimeMs();