from UM.Workspace.WorkspaceReader import WorkspaceReader
from UM.Application import Application

from UM.Logger import Logger

##    Base implementation for reading 3MF workspace files.
class ThreeMFWorkspaceReader(WorkspaceReader):
    def __init__(self):
        super().__init__()
        self._supported_extensions = [".3mf"]

        self._3mf_mesh_reader = None

    def preRead(self, file_name):
        self._3mf_mesh_reader = Application.getInstance().getMeshFileHandler().getReaderForFile(file_name)
        if self._3mf_mesh_reader and self._3mf_mesh_reader.preRead(file_name) == WorkspaceReader.PreReadResult.accepted:
            pass
        else:
            Logger.log("w", "Could not find reader that was able to read the scene data for 3MF workspace")
            return WorkspaceReader.PreReadResult.failed
        # TODO: Ask user if it's  okay for the scene to be cleared
        return WorkspaceReader.PreReadResult.accepted

    def read(self, file_name):
        pass