Vérification de permission au début d'une commande

const Discord = require(`discord.js`);
const client = new Discord.Client();

const token = `TOKEN`;
const prefix = `+`;

client.on(`ready`, () => {
    console.log(`${client.user.username} est en ligne !`);
});

client.on(`message`, async (message) => {
    if (message.author.bot) return;
    if (message.content.indexOf(prefix) !== 0) return;
    const args = message.content.slice(prefix.length).trim().split(/ +/g);
    const command = args.shift().toLowerCase();
    if (command === "test") {
        const clientmember = message.guild.members.cache.get(client.user.id);
        if (!clientmember.hasPermission(`ADMINISTRATOR`)) {
            const embed = new Discord.MessageEmbed()
                .setColor(`#0099FF`)
                .setAuthor(message.author.username, message.author.displayAvatarURL({
                    dynamic: true
                }))
                .setTitle(`${clientmember.displayName} n'as pas les permissions requises !`)
                .setTimestamp()
                .setFooter(client.user.username, client.user.displayAvatarURL({
                    dynamic: true
                }));
            return message.channel.send(embed);
        } else if (clientmember.hasPermission(`ADMINISTRATOR`)) {
            const embed = new Discord.MessageEmbed()
                .setColor(`#0099FF`)
                .setAuthor(message.author.username, message.author.displayAvatarURL({
                    dynamic: true
                }))
                .setTitle(`${client.users.cache.get(`609174280734900226`).username} c'est un noob en discord.js`)
                .setTimestamp()
                .setFooter(client.user.username, client.user.displayAvatarURL({
                    dynamic: true
                }));
            return message.channel.send(embed);
        };
    };
});

client.login(token);