/**
 * factory.ts
 * Copyright (C) 2021 Sanar
 *
 * @author Edgard Leal <edgard.leal@sanar.com>
 * @module factory.ts
 */

import BackupReader from './backup-reader';
import BackupWriter from './backup-writer';
import DiskBackupFinder from './disk/disk-backup-finder';
import DiskBackupReader from './disk/disk-backup-reader';
import DiskBackupWriter from './disk/disk-backup-writer';

/**
 * Create implemetations related do database
 * @author edgardleal@gmail.com
 * @since 04.03.21
 */
export default class DBFactory {
  private backupReader: DiskBackupReader;

  private backupWriter: any;

  private backupFinder: DiskBackupFinder;

  getBackupReader(): BackupReader {
    if (!this.backupReader) {
      this.backupReader = new DiskBackupReader();
    }
    return this.backupReader;
  }

  getBackupWriter(): BackupWriter {
    if (!this.backupWriter) {
      this.backupWriter = new DiskBackupWriter();
    }
    return this.backupWriter;
  }

  getBackupFinder() {
    if (!this.backupFinder) {
      this.backupFinder = new DiskBackupFinder(this.getBackupReader());
    }
    return this.backupFinder;
  }
}