const s3Storage = require("./s3Storage");

const BACKUP_PREFIX = "backup";
const UPLOADS_PREFIX = "uploads";

const appendS3UploadsToArchive = async (archive) => {
  const keys = await s3Storage.listObjects(UPLOADS_PREFIX);

  for (const key of keys) {
    const buffer = await s3Storage.getObjectBuffer(key);
    archive.append(buffer, { name: key });
  }
};

const uploadBackupArchive = async (buffer, fileName) => {
  await s3Storage.uploadBuffer(
    `${BACKUP_PREFIX}/${fileName}`,
    buffer,
    "application/zip"
  );
};

const deleteOldBackups = async () => {
  await s3Storage.deleteObjectsByPrefix(BACKUP_PREFIX);
};

module.exports = {
  BACKUP_PREFIX,
  UPLOADS_PREFIX,
  appendS3UploadsToArchive,
  uploadBackupArchive,
  deleteOldBackups,
};