"""
Schedules helper
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
contributors Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
"""
import sys


class SchedulesHelper:
  usage_to_comnet = {
    'residential': 'C-12 Residential',
    'industry': 'C-10 Warehouse',
    'office and administration': 'C-5 Office',
    'hotel': 'C-3 Hotel',
    'health care': 'C-2 Health',
    'retail': 'C-8 Retail',
    'hall': 'C-8 Retail',
    'restaurant': 'C-7 Restaurant',
    'education': 'C-9 School'
  }
  comnet_default_value = 'C-12 Residential'

  @staticmethod
  def comnet_from_usage(usage):
    """
    Get Comnet usage from the given internal usage key
    :param usage: str
    :return: str
    """
    try:
      return SchedulesHelper.usage_to_comnet[usage]
    except KeyError:
      sys.stderr.write('Error: keyword not found. Returned default Comnet schedules "residential"\n')
      return SchedulesHelper.comnet_default_value