cardboardbox/commands/Information/help.js

const { RichEmbed } = require('discord.js');

exports.run = (client, message, args, level) => {
	message.delete();
	if (!args[0]) {
		const myCommands = message.guild ? client.commands.filter(cmd => client.levelCache[cmd.conf.permLevel] <= level) : client.commands.filter(cmd => client.levelCache[cmd.conf.permLevel] <= level &&  cmd.conf.guildOnly !== true);
		
		const commandNames = myCommands.keyArray();
		const longest = commandNames.reduce((long, str) => Math.max(long, str.length), 0);

		let currentCategory = "";
		let output = `= Command List =\n\n[Use ${message.settings.prefix}help <commandname> for details]\n`;
		const sorted = myCommands.array().sort((p, c) => p.help.category > c.help.category ? 1 :  p.help.name > c.help.name && p.help.category === c.help.category ? 1 : -1 );
		sorted.forEach( c => {
			const cat = c.help.category.toProperCase();
			if (currentCategory !== cat) {
				output += `\u200b\n== ${cat} ==\n`;
				currentCategory = cat;
			}
			output += `${message.settings.prefix}${c.help.name}${" ".repeat(longest - c.help.name.length)} :: ${c.help.description}\n`;
		});
		message.channel.send(output, {code: "asciidoc", split: { char: "\u200b" }});
	} else {
		let command = args[0];
		if (client.commands.has(command)) {
			command = client.commands.get(command);
			if (level < client.levelCache[command.conf.permLevel]) return;
			message.channel.send({embed: client.embed(`Command information: "${command.help.name}"`, command.help.description, [
				{
					name: 'Category',
					value: command.help.category !== "" ? command.help.category : "none",
					inline: true
				},
				{
					name: 'Usage',
					value: command.help.usage,
					inline: true
				},
				{
					name: 'Aliases',
					value: command.conf.aliases.join(", ") !== "" ? command.conf.aliases.join(", ") : "none",
					inline: true
				}
			])});
		}
	}
};

exports.conf = {
	enabled: true,
	guildOnly: false,
	aliases: ["h", "halp"],
	permLevel: "User"
};

exports.help = {
	name: "help",
	category: "Information",
	description: "Displays all the available commands for your permission level.",
	usage: "help [command]"
};