refactor(discord-bot): move differents modes in separate files

apps/discord-bot/src/modes/user.ts

@@ -0,0 +1,34 @@
+import type { Client, TextChannel } from "discord.js";
+import { ChannelType } from "discord.js";
+import * as readline from "node:readline";
+
+export const setupUserMode = (client: Client, channelId: string) => {
+  client.on("clientReady", (client) => {
+    console.log(`Logged in as ${client.user.username}`);
+
+    const chan = client.channels.cache.get(channelId);
+    if (chan?.type !== ChannelType.GuildText) {
+      console.error("ERROR: invalid channel");
+      process.exit(1);
+    }
+
+    const rl = readline.createInterface({
+      input: process.stdin,
+      output: process.stdout,
+      prompt: `${chan.name} ~ `,
+    });
+
+    rl.prompt();
+
+    rl.on("line", async (line) => {
+      if (line.trim().length > 0) {
+        await (chan as TextChannel).send(line);
+      }
+      rl.prompt();
+    });
+
+    rl.on("close", () => {
+      process.exit(0);
+    });
+  });
+};