changed defautl help a bit

commands/utility/help.js

@@ -0,0 +1,103 @@
+const { stripIndents, oneLine } = require('common-tags');
+const { Command, disambiguation } = require('discord.js-commando');
+
+module.exports = class HelpCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'help',
+			group: 'util',
+			memberName: 'help',
+			description: 'Displays a list of available commands, or detailed information for a specified command.',
+			details: oneLine`
+				The command may be part of a command name or a whole command name.
+				If it isn't specified, all available commands will be listed.
+			`,
+			examples: ['help', 'help prefix'],
+			guarded: true,
+
+			args: [
+				{
+					key: 'command',
+					prompt: 'Which command would you like to view the help for?',
+					type: 'string',
+					default: ''
+				}
+			]
+		});
+	}
+
+	async run(msg, args) { // eslint-disable-line complexity
+		const groups = this.client.registry.groups;
+		const commands = this.client.registry.findCommands(args.command, false, msg);
+		const showAll = args.command && args.command.toLowerCase() === 'all';
+		if(args.command && !showAll) {
+			if(commands.length === 1) {
+				let help = stripIndents`
+					${oneLine`
+						__Command **${commands[0].name}**:__ ${commands[0].description}
+						${commands[0].guildOnly ? ' (Usable only in servers)' : ''}
+						${commands[0].nsfw ? ' (NSFW)' : ''}
+					`}
+
+					**Format:** ${msg.anyUsage(`${commands[0].name}${commands[0].format ? ` ${commands[0].format}` : ''}`)}
+				`;
+				if(commands[0].aliases.length > 0) help += `\n**Aliases:** ${commands[0].aliases.join(', ')}`;
+				help += `\n${oneLine`
+					**Group:** ${commands[0].group.name}
+					(\`${commands[0].groupID}:${commands[0].memberName}\`)
+				`}`;
+				if(commands[0].details) help += `\n**Details:** ${commands[0].details}`;
+				if(commands[0].examples) help += `\n**Examples:**\n${commands[0].examples.join('\n')}`;
+
+				const messages = [];
+				try {
+					messages.push(await msg.direct(help));
+					if(msg.channel.type !== 'dm') messages.push(await msg.reply('Sent you a DM with information.'));
+				} catch(err) {
+					messages.push(await msg.reply('Unable to send you the help DM. You probably have DMs disabled.'));
+				}
+				return messages;
+			} else if(commands.length > 15) {
+				return msg.reply('Multiple commands found. Please be more specific.');
+			} else if(commands.length > 1) {
+				return msg.reply(disambiguation(commands, 'commands'));
+			} else {
+				return msg.reply(
+					`Unable to identify command. Use ${msg.usage(
+						null, msg.channel.type === 'dm' ? null : undefined, msg.channel.type === 'dm' ? null : undefined
+					)} to view the list of all commands.`
+				);
+			}
+		} else {
+			const messages = [];
+			try {
+				messages.push(await msg.direct(stripIndents`
+					${oneLine`
+						To run a command in ${msg.guild ? msg.guild.name : 'any server'},
+						use ${Command.usage('command', msg.guild ? msg.guild.commandPrefix : null, this.client.user)}.
+						For example, ${Command.usage('prefix', msg.guild ? msg.guild.commandPrefix : null, this.client.user)}.
+					`}
+					To run a command in this DM, simply use ${Command.usage('command', null, null)} with no prefix.
+
+					Use ${this.usage('<command>', null, null)} to view detailed information about a specific command.
+					Use ${this.usage('all', null, null)} to view a list of *all* commands, not just available ones.
+
+					__**${showAll ? 'All commands' : `Available commands in ${msg.guild || 'this DM'}`}**__
+
+					${(showAll ? groups : groups.filter(grp => grp.commands.some(cmd => cmd.isUsable(msg))))
+						.map(grp => stripIndents`
+							__${grp.name}__
+							${(showAll ? grp.commands : grp.commands.filter(cmd => cmd.isUsable(msg)))
+								.map(cmd => `\`\`${cmd.name}: ${cmd.description}${cmd.nsfw ? ' (NSFW)' : ''}\`\``).join('\n')
+							}
+						`).join('\n\n')
+					}
+				`, { split: true }));
+				if(msg.channel.type !== 'dm') messages.push(await msg.reply('Sent you a DM with information.'));
+			} catch(err) {
+				messages.push(await msg.reply('Unable to send you the help DM. You probably have DMs disabled.'));
+			}
+			return messages;
+		}
+	}
+};