I want to check if the bot has certain permissions in a server. So, I would like to make it return something like: "I am lacking the permission: MANAGE_GUILD". However, I only have the PermissionsBitField.Flags.ManageGuild. So, is there a way to return the name of the permission using the PermissionsBitField.Flags?

Thank you in advance! (Also, yes it is supposed to be for discordjs v.14)

CodePudding user response：

You can find out the name of the field which permissions this PermissionBitField holds using Object.keys(PermissionBitField.Flags). The code snippet below uses this to create an array of the human readable names from the PermissionBitField object:

import {PermissionsBitField} from 'discord.js';

function permissionsNames(permissions: PermissionsBitField) : string[] {
  const result = [];

  for (const perm of Object.keys(PermissionsBitField.Flags)) {
    if (permissions.has(PermissionsBitField.Flags[perm])) {
      result.push(perm);
    }
  }
  return result;
}

console.log(permissionsNames( new PermissionsBitField(268550160n)));

This will result in

 [
   'ManageChannels',
   'EmbedLinks',
   'AttachFiles',
   'ReadMessageHistory',
   'ManageRoles'
 ]

You can also use this to get the name of exactly one field:

import {PermissionsBitField} from 'discord.js';

function getPermissionName(permission: bigint) : string {
  for (const perm of Object.keys(PermissionsBitField.Flags)) {
    if (PermissionsBitField.Flags[perm] === permission) {
      return perm;
    }
  }
  return 'UnknownPermission';
}

console.log(getPermissionName(PermissionsBitField.Flags.ManageGuild));

This will then result in ManageGuild, which is what you are looking for!

Hope this helps!

CodePudding user response：

You can do that:

const { PermissionsBitField } = require('discord.js');

if (!message.guild.me.permissions.has(PermissionsBitField.Flags.ManageGuild)) return message.reply({content: "I am lacking the permission: MANAGE_GUILD"})