<?php

declare(strict_types=1);

namespace KTXM\ServiceDav\Backends;

use KTXC\SessionIdentity;
use KTXC\SessionTenant;
use KTXM\DocumentsManager\Manager as DocumentsManager;
use Sabre\DAV\Collection;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\INode;

/**
 * The root WebDAV collection for a user's files.
 *
 * Structure:  /dav/files/{providerLabel}/{serviceLabel}/...
 *
 * Each provider+service combination becomes a top-level folder.
 */
class FilesRootNode extends Collection
{
    public function __construct(
        private readonly DocumentsManager $manager,
        private readonly SessionIdentity $identity,
        private readonly SessionTenant $tenant,
    ) {}

    public function getName(): string
    {
        return 'files';
    }

    /** @return INode[] */
    public function getChildren(): array
    {
        $nodes = [];
        $services = $this->manager->serviceList($this->tenant->identifier(), $this->identity->identifier());

        foreach ($services as $providerId => $providerServices) {
            foreach ($providerServices as $serviceId => $service) {
                $nodes[] = new FilesServiceNode(
                    $service,
                );
            }
        }

        return $nodes;
    }

    public function createDirectory($name): void
    {
        throw new Forbidden('Cannot create a provider root directory');
    }
}