bot-discord-coins/fonctions/getPermissionLevel.js

const db = require('./database.js');

module.exports = async function getPermissionLevel(serverId, user) {
  const roles = user.roles.cache.map(role => role.id);

  const perms = await new Promise((resolve, reject) => {
    db.all(`SELECT * FROM rolePermission WHERE guildId = ? AND roleId IN (${roles.map(() => '?').join(',')})`, [serverId, ...roles], (err, rows) => {
      if (err) reject(err);
      resolve(rows);
    });
  });
  
  const highestPermission = Math.max(...perms.map(perm => perm.permission));
  return highestPermission;
}