migration notice

src/events/messageCreate.ts

@@ -0,0 +1,21 @@
+import { Events } from "discord.js";
+import { defineEvent } from ".";
+import { dedent } from "../utils/functions";
+
+export default defineEvent({
+  name: Events.MessageCreate,
+
+  async execute(message) {
+    if (message.author.bot) return;
+
+    const command = message.content.match(/^\$[a-zA-Z]+$/);
+    if (command) {
+      await message.reply(
+        dedent`The bot has migrated to slash commands!
+        Start typing \`/\` to see the available commands.
+        For example: \`/${command[0].slice(1)}\``
+      );
+      return;
+    }
+  },
+});

src/utils/functions.ts

@@ -42,3 +42,12 @@ export async function silently<T extends Promise<any>>(p?: T) {
     return await p;
   } catch {}
 }
+
+export function dedent(parts: TemplateStringsArray, ...values: unknown[]) {
+  return parts
+    .flatMap((part, i) =>
+      i < values.length ? [part, String(values[i])] : [part]
+    )
+    .join("")
+    .replace(/(\n)\s+/g, "$1");
+}