Method copyFolderTreeInternal

src/FileRise/Domain/FolderModel.php:1348–1431

(
        StorageAdapterInterface $srcStorage,
        StorageAdapterInterface $dstStorage,
        string $srcRoot,
        string $dstRoot,
        string $sourceFolder,
        string $targetFolder

    }

    private static function copyFolderTreeInternal(
        StorageAdapterInterface $srcStorage,
        StorageAdapterInterface $dstStorage,
        string $srcRoot,
        string $dstRoot,
        string $sourceFolder,
        string $targetFolder,
        callable $copyFilesFn
    ): array {
        $sourceFolder = trim((string)$sourceFolder, "/\\ ");
        $targetFolder = trim((string)$targetFolder, "/\\ ");
        if ($sourceFolder === '' || strtolower($sourceFolder) === 'root') {
            return ['error' => 'Invalid source folder.'];
        }
        if ($targetFolder === '' || strtolower($targetFolder) === 'root') {
            return ['error' => 'Invalid destination folder.'];
        }

        [$srcAbs, , $err] = self::resolveFolderPathForAdapter($srcStorage, $srcRoot, $sourceFolder, false);
        if ($err) {
            return ['error' => $err];
        }

        $normalizedTarget = str_replace('\\', '/', $targetFolder);
        $targetName = basename($normalizedTarget);
        if ($targetName === '' || !preg_match(REGEX_FOLDER_NAME, $targetName)) {
            return ['error' => 'Invalid destination folder name.'];
        }
        $parentKey = dirname($normalizedTarget);
        if ($parentKey === '.' || $parentKey === '') {
            $parentKey = 'root';
        } else {
            $parentKey = trim($parentKey, '/');
            if ($parentKey === '') {
                $parentKey = 'root';
            }
        }

        [$dstParentAbs, , $err] = self::resolveFolderPathForAdapter($dstStorage, $dstRoot, $parentKey, false);
        if ($err) {
            return ['error' => $err];
        }

        $targetAbs = rtrim($dstParentAbs, "/\\") . DIRECTORY_SEPARATOR . $targetName;
        if ($dstStorage->stat($targetAbs) !== null) {
            return ['error' => 'Destination folder already exists.'];
        }
        if (!$dstStorage->mkdir($targetAbs, 0775, true)) {
            return ['error' => 'Failed to create destination folder.'];
        }

        [$maxFiles, $maxBytes, $maxDepth] = self::getCopyTreeLimits();
        $scan = self::scanFolderTreeForCopy($srcStorage, $srcAbs, $maxFiles, $maxBytes, $maxDepth);
        if (isset($scan['error'])) {
            return ['error' => $scan['error']];
        }

        $folders = $scan['folders'] ?? [''];