feat: username suggestions

src/core/autocomplete/username.ts

@@ -0,0 +1,39 @@
+import {
+  ApplicationCommandOptionChoiceData,
+  AutocompleteInteraction,
+  CacheType,
+} from 'discord.js';
+import { BlitzServer } from '../../constants/servers.js';
+import { AccountList } from '../../types/players.js';
+import getWargamingResponse from '../blitz/getWargamingResponse.js';
+import { args } from '../process/args.js';
+
+export default async function usernameAutocomplete(
+  interaction: AutocompleteInteraction<CacheType>,
+) {
+  const focusedOption = interaction.options.getFocused(true);
+  if (focusedOption.name !== 'username') return;
+  const server = interaction.options.getString('server') as BlitzServer;
+
+  const players = await getWargamingResponse<AccountList>(
+    `https://api.wotblitz.${
+      server ?? 'com'
+    }/wotb/account/list/?application_id=${
+      args['wargaming-application-id']
+    }&search=${focusedOption.value}&limit=10`,
+  );
+
+  await interaction.respond(
+    players
+      ? players.map(
+          (player) =>
+            ({
+              name: player.nickname,
+              value: `${player.account_id}`,
+            } satisfies ApplicationCommandOptionChoiceData<string>),
+        )
+      : [],
+  );
+
+  console.log(`Username autocomplete for ${focusedOption.value}`);
+}