Add command cooldowns to prevent glitches when commands are sent too …

…quickly

index.js

@@ -12,6 +12,7 @@ client.login(TOKEN);
 client.commands = new Collection();
 client.prefix = PREFIX;
 client.queue = new Map();
+const cooldowns = new Collection();
 
 /**
  * Client Events
@@ -46,6 +47,28 @@ client.on("message", async (message) => {
 
     if (!command) return;
 
+    if (!cooldowns.has(command.name)) {
+      cooldowns.set(command.name, new Collection());
+    }
+
+    const now = Date.now();
+    const timestamps = cooldowns.get(command.name);
+    const cooldownAmount = (command.cooldown || 1) * 1000;
+
+    if (timestamps.has(message.author.id)) {
+      const expirationTime = timestamps.get(message.author.id) + cooldownAmount;
+
+      if (now < expirationTime) {
+        const timeLeft = (expirationTime - now) / 1000;
+        return message.reply(
+          `please wait ${timeLeft.toFixed(1)} more second(s) before reusing the \`${command.name}\` command.`
+        );
+      }
+    }
+
+    timestamps.set(message.author.id, now);
+    setTimeout(() => timestamps.delete(message.author.id), cooldownAmount);
+
     try {
       command.execute(message, args);
     } catch (error) {