boromir674/so-magic

import attr


@attr.s
class SoMaster:
    _data_manager = attr.ib(init=True)
    _dataset_constructor = attr.ib(init=True)
    _magic_map_manager_constructor = attr.ib(init=True)

    _map_manager = attr.ib(init=False, default=attr.Factory(lambda self: self._magic_map_manager_constructor(self),
                                                            takes_self=True))
    _last_path = attr.ib(init=False, default='')

    _datasets = attr.ib(init=False, default={})

    def load_data(self, file_path):
        cmd = self._data_manager.command.observations_command
        cmd.args = [file_path]
        cmd.execute()
        self._last_path = file_path
        return self._data_manager.engine.datapoints_manager.datapoints

    @property
    def map(self):
        return self._map_manager

    @property
    def datapoints(self):
        return self._data_manager.engine.datapoints_manager.datapoints

    @property
    def commands_decorators(self):
        return self._data_manager.commands_manager.decorators

    @property
    def command(self):
        return self._data_manager.command

    @property
    def dataset(self):
        datapoints_id = id(self._data_manager.engine.datapoints_manager.datapoints)
        if datapoints_id not in self._datasets:
            self._datasets[datapoints_id] = self._dataset_constructor(
                self._data_manager.engine.datapoints_manager.datapoints,
                self._data_manager.engine.datapoints_manager.state,
            )
        return self._datasets[datapoints_id]