make your color random (discord.js 11.1)

randomcolor.js

/*
    Warning:
    The command core is written on the format of CommunityBot.
    You can find my rendition here:
    https://github.com/mertturunc/Bane/tree/test-dev
*/

exports.commands = {
    "randomcolor": {
        process: function(bot, message) {
            if (message.channel.type === "dm" || message.channel.type === "group") {
                return;                                                                                // discard dm and group messages
            };
            if (!message.guild.member(bot.user).hasPermission("MANAGE_ROLES")) {
                return;                                                                                // check permissions for MANAGE_ROLES, if bot doesn't have it, exit
            };
            if (message.guild.id !== "321037402002948099") {
                return;                                                                                // can be removable, checks if the guild is genprog
            };
            if (message.member.colorRole && message.member.colorRole.members.size > 1) {
                return;                                                                                // if the color role has more than 1 user, exit
            };
            var finalA = '#' + ("000000" + Math.random().toString(16).slice(2, 8).toUpperCase()).slice(-6); // generate random hex color
            if (!message.member.colorRole) {                                                                                               // if user doesn't have a color role
                var roleName = ("#" + message.author.username);                                                                                // set a name variable for the new role as #<username>
                message.guild.createRole({                                                                                                     // create role
                    name: roleName,                                                                                                                // set rolename as the name variable
                    color: finalA,                                                                                                                 // set color to the random generated one
                    hoist: false,                                                                                                                  // set role to be not hoistable
                    permissions: 1177930945,                                                                                                       // copied from genprog guild
                    mentionable: false                                                                                                             // set role unmentionable
                }).then(r => {                                                                                                                 // after role creation
                    message.member.addRole(r).then(gm => {                                                                                         // add target member to the role
                        message.channel.send("Set color to http://garden.offbeatwit.ch/color/" + finalA.replace("#", "")).catch(e => {                 // send user the new color (thx offbeatwitch for the site) and on error,
                            console.error("Err in command: " + e);                                                                                         // print error to the console
                        });
                    });
                }).catch(e => {                                                                                                                // if an error happens in role addition
                    console.error("Err in command: " + e);                                                                                         // print error to the console
                });
            } else {                                                                                                                       // if user has a color role
                message.member.colorRole.edit({                                                                                                // edit the color role 
                    color: finalA                                                                                                                  // set color to the random generated one
                }).then(r => {                                                                                                             // after role editing
                    message.channel.send("Set color to http://garden.offbeatwit.ch/color/" + finalA.replace("#", "")).catch(e => {             // send user the new color (thx offbeatwitch for the site) and on error,
                        console.error("Err in command: " + e);                                                                                     // print error to the console
                    });
                }).catch(e => {                                                                                                            // if an error happens in role editing
                    console.error("Err in command: " + e);                                                                                     // print error to the console
                });
            }
            if (message.channel.permissionsFor(message.guild.member(bot.user)).has("MANAGE_MESSAGES") && message.mentions.users.size > -1) {   // if bot has MANAGE_MESSAGES permission
                message.delete().catch(e => {                                                                                                      // delete the incoming message and on error,
                    console.log("I don't have permissions to delete messages on Guild: " + message.guild.name + " Guild ID: " + message.guild.id);                        // print error to the console
                });
            }
        }
    }
}