use Aws\S3\S3Client;
use FileSpace\Service\PdoService;
use ObjectStorage\Adapter\S3Adapter;

// Instantiate an S3 connection
$s3client = S3Client::factory(array(
    'key' => 'my_s3_key',
    'secret' => 'my_s3_secret'
));

// Get a storage adapter based on the s3 client
$storage = new S3Adapter($s3client, 'my-bucket-name', 'my/key/prefix/');

// Get a PDO connection
$pdo = ... // TODO;

// Instantiate the File Space Service:
$service = new PdoFileSpaceService($pdo, $storage);

// test if a 'space' has been created:
$space_key = 'account-x.contact.c001';
if (!$service->hasSpace($space_key)) {
    $service->createSpace($space_key, "Customer 1: John Johnson");
}
$space = $service->getSpace($space_key);

// List all files in the space
$files = $service->getFiles($space);
foreach ($files as $file) {
    echo $file->getKey() . ': ' . $file->getSizeOriginalDisplay() . "\n";
}

// Upload a file into this space
$service->upload($space, 'contract-final.pdf', '/home/john/Downloads/contract.pdf');

// Download a file from this space:
$service->download($space, 'invoice-1234.pdf', '/home/john/invoices/invoice-1234.pdf');

// Delete a file from the space:
$service->deleteFile($space, 'remove-me.txt');