<?php
if (getenv('OBJECTSTORE_S3_BUCKET')) {
  $use_ssl = getenv('OBJECTSTORE_S3_SSL');
  $use_path = getenv('OBJECTSTORE_S3_USEPATH_STYLE');
  $use_legacyauth = getenv('OBJECTSTORE_S3_LEGACYAUTH');
  $autocreate = getenv('OBJECTSTORE_S3_AUTOCREATE');
  $proxy = getenv('OBJECTSTORE_S3_PROXY');
  $verify_bucket_exists = getenv('OBJECTSTORE_S3_VERIFY_BUCKET_EXISTS');
  $use_multipart_copy = getenv('OBJECTSTORE_S3_USEMULTIPARTCOPY');
  $concurrency = getenv('OBJECTSTORE_S3_CONCURRENCY');
  $timeout = getenv('OBJECTSTORE_S3_TIMEOUT');
  $upload_part_size = getenv('OBJECTSTORE_S3_UPLOADPARTSIZE');
  $put_size_limit = getenv('OBJECTSTORE_S3_PUTSIZELIMIT');
  $copy_size_limit = getenv('OBJECTSTORE_S3_COPYSIZELIMIT');

  $CONFIG = array(
    'objectstore' => array(
      'class' => '\OC\Files\ObjectStore\S3',
      'arguments' => array(
        'bucket' => getenv('OBJECTSTORE_S3_BUCKET'),
        'region' => getenv('OBJECTSTORE_S3_REGION') ?: '',
        'hostname' => getenv('OBJECTSTORE_S3_HOST') ?: '',
        'port' => getenv('OBJECTSTORE_S3_PORT') ?: '',
        'storageClass' => getenv('OBJECTSTORE_S3_STORAGE_CLASS') ?: '',
        'objectPrefix' => getenv("OBJECTSTORE_S3_OBJECT_PREFIX") ? getenv("OBJECTSTORE_S3_OBJECT_PREFIX") : "urn:oid:",
        'autocreate' => strtolower($autocreate) !== 'false',
        'use_ssl' => strtolower($use_ssl) !== 'false',
        // required for some non Amazon S3 implementations
        'use_path_style' => $use_path == true && strtolower($use_path) !== 'false',
        // required for older protocol versions
        'useMultipartCopy' => strtolower($useMultipartCopy) !== 'true',
        'legacy_auth' => $use_legacyauth == true && strtolower($use_legacyauth) !== 'false',
        'proxy' => strtolower($proxy) !== 'false',
        'version' => getenv('OBJECTSTORE_S3_VERSION') ?: 'latest',
        'verify_bucket_exists' => strtolower($verify_bucket_exists) !== 'true'
      )
    )
  );

  if $concurrency {
    $CONFIG['objectstore']['arguments']['concurrency'] = $concurrency;
  }

  if $timeout {
    $CONFIG['objectstore']['arguments']['timeout'] = $timeout;
  }

  if $upload_part_size {
    $CONFIG['objectstore']['arguments']['uploadPartSize'] = $upload_part_size;
  }

  if $put_size_limit {
    $CONFIG['objectstore']['arguments']['putSizeLimit'] = $put_size_limit;
  }

  if $copy_size_limit {
    $CONFIG['objectstore']['arguments']['copySizeLimit'] = $copy_size_limit;
  }

  if (getenv('OBJECTSTORE_S3_KEY_FILE')) {
    $CONFIG['objectstore']['arguments']['key'] = trim(file_get_contents(getenv('OBJECTSTORE_S3_KEY_FILE')));
  } elseif (getenv('OBJECTSTORE_S3_KEY')) {
    $CONFIG['objectstore']['arguments']['key'] = getenv('OBJECTSTORE_S3_KEY');
  } else {
    $CONFIG['objectstore']['arguments']['key'] = '';
  }

  if (getenv('OBJECTSTORE_S3_SECRET_FILE')) {
    $CONFIG['objectstore']['arguments']['secret'] = trim(file_get_contents(getenv('OBJECTSTORE_S3_SECRET_FILE')));
  } elseif (getenv('OBJECTSTORE_S3_SECRET')) {
    $CONFIG['objectstore']['arguments']['secret'] = getenv('OBJECTSTORE_S3_SECRET');
  } else {
    $CONFIG['objectstore']['arguments']['secret'] = '';
  }

  if (getenv('OBJECTSTORE_S3_SSE_C_KEY_FILE')) {
    $CONFIG['objectstore']['arguments']['sse_c_key'] = trim(file_get_contents(getenv('OBJECTSTORE_S3_SSE_C_KEY_FILE')));
  } elseif (getenv('OBJECTSTORE_S3_SSE_C_KEY')) {
    $CONFIG['objectstore']['arguments']['sse_c_key'] = getenv('OBJECTSTORE_S3_SSE_C_KEY');
  }
}