const sqlite3 = require('sqlite3').verbose();

module.exports = async function getPermissionLevel(member, guild) {
  return new Promise((resolve, reject) => {
    let db = new sqlite3.Database('db.db', sqlite3.OPEN_READWRITE, (err) => {
      if (err) {
        console.error(err.message);
        reject(err);
      }
    });

    let buyerId = [];
    let ownerId = [];
    let highestPermission = 0;

    db.each('SELECT userID FROM users WHERE serverID = ? AND buyer = 1', [guild.id],
      (err, row) => {
        if (err) {
          console.error(err.message);
          reject(err);
        }
        buyerId.push(row.userID);
      });

    db.each('SELECT userID FROM users WHERE serverID = ? AND owner = 1', [guild.id],
      (err, row) => {
        if (err) {
          console.error(err.message);
          reject(err);
        }
        ownerId.push(row.userID);
      });

    for (let i = 1; i <= 9; i++) {
      db.each('SELECT roleID FROM permissions WHERE serverID = ? AND permission = ?', [guild.id, i],
        (err, row) => {
          if (err) {
            console.error(err.message);
            reject(err);
          }
          if (member.roles.cache.has(row.roleID)) {
            highestPermission = Math.max(highestPermission, i);
          }
        });
    }

    db.close((err) => {
      if (err) {
        console.error(err.message);
        reject(err);
      }

      if (buyerId.includes(member.id)) {
        resolve(11);
      } else if (ownerId.includes(member.id)) {
        resolve(10);
      } else {
        resolve(highestPermission);
      }
    });
  });
}