Method checkExisting

src/FileRise/Domain/UploadModel.php:1604–1678

* Check which files already exist in the target folder. * * @param string $folder Normalized folder (e.g., "root" or "team/reports"). * @param array $files Array of ['path' => 'sub/file.txt', 'size' => 123]. * @return array */

(string $folder, array $files)

     * @return array
     */
    public static function checkExisting(string $folder, array $files): array
    {
        $storage = StorageRegistry::getAdapter();
        $folderSan = self::sanitizeFolder($folder);
        $existing = [];
        $seen = [];

        foreach ($files as $entry) {
            if (!is_array($entry)) {
                continue;
            }
            $rawPath = isset($entry['path']) ? (string)$entry['path'] : '';
            if ($rawPath === '') {
                continue;
            }
            $path = str_replace('\\', '/', trim($rawPath));
            $path = ltrim($path, '/');
            if ($path === '') {
                continue;
            }
            if (isset($seen[$path])) {
                continue;
            }
            $seen[$path] = true;

            [$subDir, $fileName] = self::parseRelativePath($path);
            if ($subDir === null || $fileName === '') {
                continue;
            }

            $storagePath = self::buildStoragePath($folderSan, $subDir, $fileName);
            $exists = false;
            $existingSize = null;

            if ($storage->isLocal()) {
                if (is_file($storagePath)) {
                    $exists = true;
                    $size = @filesize($storagePath);
                    $existingSize = ($size === false) ? null : (int)$size;
                }
            } else {
                try {
                    $stat = $storage->stat($storagePath);
                    if ($stat && ($stat['type'] ?? '') === 'file') {
                        $exists = true;
                        $size = $stat['size'] ?? null;
                        $existingSize = ($size === null) ? null : (int)$size;
                    }
                } catch (\Throwable $e) {
                    // Best-effort: treat as non-existing on stat errors.
                }
            }

            if (!$exists) {
                continue;
            }

            $reqSize = null;