Person Command, Split util to where eval is owner

commands/util-public/unknown-command.js

@@ -0,0 +1,43 @@
+const Command = require('../../structures/Command');
+const { default: didYouMean, ReturnTypeEnums } = require('didyoumean2');
+const { stripIndents } = require('common-tags');
+
+module.exports = class UnknownCommandCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'unknown-command',
+			group: 'util-public',
+			memberName: 'unknown-command',
+			description: 'Displays help information for when an unknown command is used.',
+			unknown: true,
+			hidden: true,
+			guarded: true
+		});
+	}
+
+	run(msg) {
+		if (!msg.guild) return null;
+		const commands = this.makeCommandArray(this.client.isOwner(msg.author), msg.channel.nsfw);
+		const command = msg.content.match(this.client.dispatcher._commandPatterns[this.client.commandPrefix]);
+		const str = command ? command[2] : msg.content.split(' ')[0];
+		const results = didYouMean(str, commands, { returnType: ReturnTypeEnums.ALL_SORTED_MATCHES });
+		const inGuild = msg.guild ? undefined : null;
+		return msg.reply(stripIndents`
+			Unknown command. Use ${msg.anyUsage('help', inGuild, inGuild)} to view the command list.
+
+			${results.length ? `Did You Mean: ${results.slice(0, 5).map(c => `\`${c}\``).join(', ')}` : ''}
+		`);
+	}
+
+	makeCommandArray(owner, nsfw) {
+		const arr = [];
+		for (const command of this.client.registry.commands.values()) {
+			if (!owner && command.ownerOnly) continue;
+			if (command.hidden) continue;
+			if (!nsfw && command.nsfw) continue;
+			if (!command.name.includes('-')) arr.push(command.name);
+			arr.push(...command.aliases.filter(alias => !alias.includes('-')));
+		}
+		return arr;
+	}
+};