Haha-Yes/commands/admin/slowmode.js

const { Command } = require('discord-akairo');

class PruneCommand extends Command {
    constructor() {
        super('Slowmode', {
            aliases: ['slowmode', 'slow'],
            category: 'admin',
            args: [
                {
                    id: "slowmodeNumber",
                    type: "integer"
                },
                {
                    id: "realtime",
                    type: "integer",
                    optional: true,
                }
            ],
            clientPermissions: ['MANAGE_CHANNELS'],
            userPermissions: ['MANAGE_CHANNELS'],
            channelRestriction: 'guild',
            description: {
                content: 'Put a channel in slowmode',
                usage: '[1-120 slowmode] [time it stays on]',
                examples: ['267065637183029248']
            }
        });
    }

    async exec(message,args) {
        let slowmodeNumber = args.slowmodeNumber;
        let realtime = args.realtime;

        if (slowmodeNumber > 120)
        return message.channel.send("Slowmode can only be set to 120 seconds or lower!");

        message.channel.setRateLimitPerUser(slowmodeNumber);

        if (realtime) {
        let time = 60000 * realtime;
        message.channel.send(`Slowmode have been set to ${slowmodeNumber} seconds and will end in ${realtime} minutes!`);
        setTimeout (function (){
            message.channel.setRateLimitPerUser(0);
            return message.channel.send("Slowmode is now disabled!")
        }, time);
        } else {
        if (slowmodeNumber == 0)
            return message.channel.send("Slowmode have been disabled!")
        return message.channel.send(`Slowmode have been set to ${slowmodeNumber} seconds!`);
        }
    }
}

module.exports = PruneCommand;