import sqlite3 from 'sqlite3';
require('dotenv').config();

function getPrefix() {
  return new Promise((resolve, reject) => {
    const dbName = process.env.DB_NAME || 'db.db';

    let db = new sqlite3.Database(dbName, sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE, (err: Error | null) => {
      if (err) {
        console.error(err.message);
      }
    });

    db.get('SELECT prefix FROM prefix', (err: Error | null, row: any) => {
      if (err) {
        console.error(err.message);
        reject(err);
      }
      const prefix = row ? row.prefix : process.env.DEFAULT_PREFIX;
      resolve(prefix);
    });

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

module.exports = getPrefix;