feat: pre-fetch guild members on boot

src/index.ts

@@ -20,6 +20,7 @@ import { softbanCommand } from "./commands/softban.js";
 import { unbanCommand } from "./commands/unban.js";
 import { unmuteCommand } from "./commands/unmute.js";
 import { warnCommand } from "./commands/warn.js";
+import { guildConfig } from "./config/guild.js";
 // eslint-disable-next-line stylistic/max-len -- Import path cannot be shortened
 import { onGuildAuditLogEntryCreate } from "./events/guildAuditLogEntryCreate.js";
 import { onGuildMemberAdd } from "./events/guildMemberAdd.js";
@@ -127,11 +128,17 @@ client.on(Events.GuildAuditLogEntryCreate, (entry, guild) => {
   void onGuildAuditLogEntryCreate(entry, guild, client);
 });
 
-client.on(Events.ClientReady, () => {
+client.on(Events.ClientReady, (readyClient) => {
-  void logger.log(
+  void (async(): Promise<void> => {
+    const guild = readyClient.guilds.cache.get(guildConfig.guildId);
+    if (guild) {
+      await guild.members.fetch();
+    }
+    await logger.log(
       "debug",
-    `Keiko is online as ${client.user?.username ?? "unknown"}.`,
+      `Keiko is online as ${readyClient.user.username}.`,
     );
+  })();
 });
 
 await client.login(process.env.DISCORD_TOKEN);

src/register.ts

@@ -29,6 +29,7 @@ const commandData = [
 
 const rest = new REST().setToken(process.env.DISCORD_TOKEN ?? "");
 
+/* eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- REST returns unknown; shape is documented by Discord API */
 const me = await rest.get(Routes.user()) as { id: string; username: string };
 console.log(`Authenticated as: ${me.username} (${me.id})`);