Add SIGINT handler

index.js

@@ -22,4 +22,22 @@ async function runModules() {
         await require(`./util/${file}`).run();
     }
 }
-runModules();
+runModules();
+
+
+// Destroy client when SIGINT
+process.on('SIGINT', async () => {
+    process.stdin.resume(); // Don't exit immediately
+    
+    console.log('');
+    logger.info('SIGINT received.');
+    
+    try {
+        await client.destroy();
+    } catch(e) {
+        logger.warn('Failed to destroy client');
+    }
+    
+    logger.done('Logged out client, exiting.');
+    process.exit();
+});