Remove optionals from whois and finduser

src/commands/whois.ts

@@ -1,6 +1,8 @@
-import { ApplicationIntegrationType, BitFieldResolvable, ChatInputCommandInteraction, Client, GuildBasedChannel, InteractionContextType, MessageFlags, PermissionFlagsBits, SlashCommandBuilder } from 'discord.js';
+import { ApplicationIntegrationType, BitFieldResolvable, ChatInputCommandInteraction, Client, GuildBasedChannel, InteractionContextType, MessageFlags, MessageMentions, PermissionFlagsBits, SlashCommandBuilder } from 'discord.js';
 import { channelIsInStaffCategory, handleWhoIsInteraction } from '../utils';
 
+const mentionRegex = new RegExp(MessageMentions.UsersPattern);
+
 export default {
   name: 'whois',
   data: new SlashCommandBuilder()
@@ -9,27 +11,19 @@ export default {
     .setIntegrationTypes(ApplicationIntegrationType.GuildInstall)
     .setContexts(InteractionContextType.Guild)
     .setDefaultMemberPermissions(PermissionFlagsBits.BanMembers)
-    .addUserOption(option =>
-      option
-        .setName('user')
-        .setDescription('The discord user to find the e621 user of.')
-        .setRequired(false)
-    )
     .addStringOption(option =>
       option
-        .setName('id')
-        .setDescription('The discord user id to find the e621 user of.')
-        .setRequired(false)
+        .setName('user')
+        .setDescription('The discord user mention, or ID to find the e621 user of.')
+        .setRequired(true)
     ),
   handler: async function (client: Client, interaction: ChatInputCommandInteraction) {
-    const user = interaction.options.getUser('user');
-    const id = interaction.options.getString('id');
+    const input = interaction.options.getString('user', true);
 
-    if (!user && !id) {
-      return interaction.reply({ content: 'No user or id given.', flags: [MessageFlags.Ephemeral] });
-    }
+    const matches = mentionRegex.exec(input);
+    mentionRegex.lastIndex = 0;
 
-    const idToUse = (user?.id ?? id) as string;
+    const idToUse = matches ? matches.groups!.id : input;
 
     handleWhoIsInteraction(interaction, idToUse, !(await channelIsInStaffCategory(interaction.channel as GuildBasedChannel)));
   }