feat: lenient username and clan lookup

src/core/blitz/getBlitzClan.ts

@@ -0,0 +1,32 @@
+import { CacheType, ChatInputCommandInteraction } from 'discord.js';
+import { BlitzServer } from '../../constants/servers.js';
+import errorEmbed from '../interaction/errorEmbed.js';
+import { serverAndIdPattern } from './getBlitzAccount.js';
+import listClansPanServer from './listClansPanServer.js';
+
+export default async function getBlitzClan(
+  interaction: ChatInputCommandInteraction<CacheType>,
+  clan: string,
+): Promise<{ server: BlitzServer; id: number } | null> {
+  if (serverAndIdPattern.test(clan)) {
+    const [server, accountId] = clan.split('/');
+    return { server: server as BlitzServer, id: Number(accountId) };
+  } else {
+    const accounts = await listClansPanServer(clan);
+
+    if (accounts[0]) {
+      return { server: accounts[0].server, id: accounts[0].clan_id };
+    } else {
+      await interaction.editReply({
+        embeds: [
+          errorEmbed(
+            'Could not find user',
+            `I couldn't find clan \`${clan}\`. Try selecting a username from the search result.`,
+          ),
+        ],
+      });
+
+      return null;
+    }
+  }
+}