add roulette command

src/commands/roulette.ts

@@ -0,0 +1,20 @@
+import { Command, sendMessage } from ".";
+import { redis } from "bun";
+import { timeout } from "../lib/timeout";
+
+const barrelCount = 6;
+
+export default new Command('roulette', ['roulette'], 'chatter', async (msg, user) => {
+  if (!await redis.exists('rouletteCount')) await redis.set('rouletteCount', "0");
+  const currentChamber = Number(await redis.get('rouletteCount'));
+  const shot = Math.random() < 1 / (barrelCount - currentChamber);
+  if (!shot) await Promise.all([
+    redis.incr('rouletteCount'),
+    sendMessage("SWEAT Click SWEAT", msg.messageId)
+  ]);
+  else await Promise.all([
+    redis.set('rouletteCount', "0"),
+    sendMessage("wybuh BANG!! wybuh"),
+    timeout(user, "You lost at russian roulette!", 5 * 60)
+  ]);
+});