<?php
/**
 * Delete an entire document, or selected suboutline.
 */
global $key, $selector, $driver;
xoxoioInit();

if (!$selector) {

    // Without selector, this is a request to delete an entire document.
    if ($driver->store->delete($key)){
        header("HTTP/1.1 200 OK", 200); return;
    } else {
        header("HTTP/1.1 403 Forbidden", 403); return;
    }

} else {

    // Attempt to fetch an existing document at this key.
    list($orig_doc, $orig_root_node) = fetchOutlineWithSelector($key, $selector);

    // Ensure selected suboutline exists, if selector present.
    if ($selector && !$orig_doc) {
        return $driver->showErrorTextResponse(400, 
            "Document not found, or suboutline selector invalid for ".
            "DELETE on new document.");
    }

    // Delete the selected node.
    $orig_root_node->parentNode->removeChild($orig_root_node);

    // Attempt to store the modified document.
    if (FALSE !== $driver->store->put($key, $orig_doc->saveXML())) {
        header("HTTP/1.1 200 OK", 200); return;
    } else {
        return $driver->show403();
    }

}
?>