Added Application stats, will output at midnight to the server and log.

app.js

@@ -4,6 +4,11 @@ var Application = function() {
     this.logChannel = null;
     this.warnings = [];
     this.bans = [];
+    this.stats = {
+      joins: 0,
+      leaves: 0,
+      warnings: 0
+    };
 };
 
 module.exports = new Application();

commands/ban.js

@@ -19,6 +19,7 @@ exports.command = function(message) {
       app.logChannel.sendMessage(`Error banning ${user} ${user.username}`);
       logger.error(`Error banning ${user.toString()} ${user} ${user.username}.`, error);
     });
+
     data.flushBans();
   });
 }

commands/warn.js

@@ -16,6 +16,8 @@ exports.command = function(message) {
     app.warnings.push(new UserWarning(user.id, user.username, message.author.id, message.author.username, count));
     data.flushWarnings();
 
+    app.stats.warnings += 1;
+
     if (count + 1 >= 3) {
       app.logChannel.sendMessage(`.ban ${user}`);
     }

package.json

@@ -13,6 +13,7 @@
     "discord.js": "^10.0.1",
     "ip": "^1.1.5",
     "logdna": "^1.2.3",
+    "node-schedule": "^1.2.3",
     "request": "^2.79.0",
     "winston": "^2.3.0"
   }

server.js

@@ -29,6 +29,25 @@ client.on('ready', () => {
   logger.info('Bot is now online and connected to server.');
 });
 
+client.on("guildMemberAdd", (member) => {
+  app.stats.joins += 1;
+});
+
+client.on("guildMemberRemove", (member) => {
+  app.stats.leaves += 1;
+});
+
+// Output the stats for app.stats every 24 hours.
+schedule.scheduleJob({ hour: 23, minute: 59 }, function(){
+  logger.info(`Here are today's stats for ${(new Date()).toLocaleDateString()}! ${app.stats.joins} users have joined, ${app.stats.leaves} users have left, ${app.stats.warnings} warnings have been issued.`);
+  app.logChannel.sendMessage(`Here are today's stats for ${(new Date()).toLocaleDateString()}! ${app.stats.joins} users have joined, ${app.stats.leaves} users have left, ${app.stats.warnings} warnings have been issued.`);
+
+  // Clear the stats for the day.
+  app.stats.joins = 0;
+  app.stats.leaves = 0;
+  app.stats.warnings = 0;
+});
+
 client.on('message', message => {
   if (message.author.bot && message.content.startsWith('.ban') == false) { return; }