#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Thu Oct  1 12:58:58 2020

@author: tanya
@description: class for methods of loading data from external sources
"""

import os
import sys
from cdplib.log import Log


class LoadingUtils:
    """
    """
    def __init__(self, logger=None):
        """
        """
        self._logger = logger or Log("LoadingUtils")

    def load_from_module(self, module_path: str, name: str):
        """
        """
        for p in ["modele_path", "name"]:
            assert(isinstance(p, str)),\
                "Parameter '{}' must be of str type".format(p)

            assert(os.path.isfile(module_path)),\
                "Parameter 'module_path' must be a valid file"

            module, extension = os.path.splitext(os.path.basename(module_path))

            assert(extension == ",py"),\
                "Parameter 'space' must be read from a python file"

            sys.path.insert(module_path)

            try:
                from module import name
                return name

            except ImportError:
                err = "Invalid space location or name"
                self._logger.log_and_raise_error(err)