GetPathFromBase64Hash evaluates the path to a media file from its Base64Hash 3 subdirectories are created for more manageable browsing and use the remainder as the file name.

MoveFileWithHashCheck checks for hash collisions when moving a temporary file to its final path based on metadata The final path is based on the hash of the file.

RemoveDir removes a directory and logs a warning in case of errors.

WriteTempFile writes to a new temporary file.