xiao/commands/moderation/lockdown.js

const { Command } = require('discord.js-commando');
const { stripIndents } = require('common-tags');

module.exports = class LockdownCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'lockdown',
			group: 'moderation',
			memberName: 'lockdown',
			description: 'Prevents users from posting in the current channel, or removes a lockdown.',
			guildOnly: true,
			clientPermissions: ['ADMINISTRATOR'],
			userPermissions: ['ADMINISTRATOR'],
			args: [
				{
					key: 'action',
					prompt: 'What action should be performed? Either start or stop.',
					type: 'string',
					default: 'start',
					validate: action => {
						if (['start', 'stop'].includes(action.toLowerCase())) return true;
						return 'Invalid action, please enter either start or stop.';
					},
					parse: action => action.toLowerCase()
				}
			]
		});
	}

	async run(msg, { action }) { // eslint-disable-line consistent-return
		if (action === 'start') {
			await msg.channel.overwritePermissions(msg.guild.defaultRole, { SEND_MESSAGES: false });
			return msg.say(stripIndents`
				Lockdown started, users without overwrites can no longer post messages.
				Please use \`lockdown stop\` to end the lockdown.
			`);
		}
		if (action === 'stop') {
			await msg.channel.overwritePermissions(msg.guild.defaultRole, { SEND_MESSAGES: null });
			return msg.say('Lockdown ended, all users can now post messages.');
		}
	}
};