Slowmode for an advanced discord bot.

slowmode.js

const Discord = require('discord.js');
const fs = require('fs');
const colors = require('colors');
const math = require('mathjs');
module.exports = {
    name: 'slowmode',
    aliases: ['sl', 'sm'],
    description: 'Set the slowmode for a channel',
    module: 'moderator',
    use: `slowmode <time in seconds/off>`,
    ownerOnly: false,
    guildOnly: false,
    silent: true,
    premium: false,
    cost: 0,
    cooldown: 0,
    async run(client, message, args, _guilds, _userGuild, _users) {
        if (!message.member.hasPermission('MANAGE_CHANNELS')) {
            let noPermsEmbed = new Discord.RichEmbed()
                .setAuthor(message.author.tag, message.author.avatarURL)
                .setDescription(`You do not have the required permissions to use this command`)
                .setColor('ff0000')
                .setFooter(`ERROR`)
                .setTimestamp();
            if (_guilds.settings.noPermsMessage == true) {
                if (_guilds.settings.useEmbeds == true) return message.channel.send(noPermsEmbed);
                else return message.channel.send(`You do not have the required permissions to use this command, ${message.author}`);
            } else return;
        }

        if (!message.guild.me.hasPermission('MANAGE_CHANNELS')) {
            let noBotPermsEmbed = new Discord.RichEmbed()
                .setAuthor(message.author.tag, message.author.avatarURL)
                .setDescription(`I do not have the required permissions for this command to be executed`)
                .setColor('ff0000')
                .setFooter(`ERROR`)
                .setTimestamp();
            if (_guilds.settings.useEmbeds == true) return message.channel.send(noBotPermsEmbed);
            else return message.channel.send(`I do not have the required permissions for this command to be executed, ${message.author}`);
        }

        if (message.guild.me.hasPermission('MANAGE_MESSAGES'))
            if (this.silent == true) message.delete().catch();

        if (args[0] == 'off' || args[0] == '0') {
            message.channel.setRateLimitPerUser(0, `none`).catch();
            let turnedOffEmbed = new Discord.RichEmbed()
                .setAuthor(message.author.tag, message.author.avatarURL)
                .setDescription(`Channel Slowmode disabled`)
                .setColor(message.member.displayHexColor)
                .setFooter(`Slowmode`)
                .setTimestamp();
            if (_guilds.settings.useEmbeds == true) return message.channel.send(turnedOffEmbed);
            else return message.channel.send(`Channel Slowmode disabled, ${message.author}`);
        }

        if (isNaN(args[0])) {
            let isNanEmbed = new Discord.RichEmbed()
                .setAuthor(message.author.tag, message.author.avatarURL)
                .setDescription(`You must include a number as the delay`)
                .setColor(message.member.displayHexColor)
                .setFooter(`Slowmode`)
                .setTimestamp();
            if (_guilds.settings.useEmbeds == true) return message.channel.send(isNanEmbed);
            else return message.channel.send(`You must include a number as the delay, ${message.author}`);
        }

        let time = math.round(args[0]);

        if (time < 1 || time > 21600) {
            let notAcceptableValueEmbed = new Discord.RichEmbed()
                .setAuthor(message.author.tag, message.author.avatarURL)
                .setDescription(`The rate must be greater than 0 but less than 21,600`)
                .setColor(message.member.displayHexColor)
                .setFooter(`Slowmode`)
                .setTimestamp();
            if (_guilds.settings.useEmbeds == true) return message.channel.send(notAcceptableValueEmbed);
            else return message.channel.send(`The rate must be greater than 0 but less than 21,600, ${message.author}`);
        }

        message.channel.setRateLimitPerUser(time, `none`).catch();
        let changedSlowModeEmbed = new Discord.RichEmbed()
            .setAuthor(message.author.tag, message.author.avatarURL)
            .setDescription(`Slowmode set to ${time} seconds`)
            .setColor(message.member.displayHexColor)
            .setFooter(`Slowmode`)
            .setTimestamp();
        if (_guilds.settings.useEmbeds == true) return message.channel.send(changedSlowModeEmbed);
        else return message.channel.send(`Slowmode set to ${time} seconds, ${message.author}`);
    }
};