"""
InternalGains module
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2020 Project Author Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
"""

from typing import Union


class InternalGains:
  """
    InternalGains class
    """

  def __init__(self):
    self._average_internal_gain = None
    self._convective_fraction = None
    self._radiative_fraction = None
    self._latent_fraction = None

  @property
  def average_internal_gain(self) -> Union[None, float]:
    """
    Get internal gains average internal gain in W/m2
    :return:  None or float
    """
    return self._average_internal_gain

  @average_internal_gain.setter
  def average_internal_gain(self, value):
    """
    Set internal gains average internal gain in W/m2
    :param value:float
    """
    if value is not None:
      self._average_internal_gain = float(value)

  @property
  def convective_fraction(self) -> Union[None, float]:
    """
    Get internal gains convective fraction
    :return:  None or float
    """
    return self._convective_fraction

  @convective_fraction.setter
  def convective_fraction(self, value):
    """
    Set internal gains convective fraction
    :param value: float
    """
    if value is not None:
      self._convective_fraction = float(value)

  @property
  def radiative_fraction(self) -> Union[None, float]:
    """
    Get internal gains radiative fraction
    :return:  None or float
    """
    return self._radiative_fraction

  @radiative_fraction.setter
  def radiative_fraction(self, value):
    """
    Set internal gains convective fraction
    :param value: float
    """
    if value is not None:
      self._radiative_fraction = float(value)

  @property
  def latent_fraction(self) -> Union[None, float]:
    """
    Get internal gains latent fraction
    :return: None or float
    """
    return self._latent_fraction

  @latent_fraction.setter
  def latent_fraction(self, value):
    """
    Set internal gains latent fraction
    :param value: float
    """
    if value is not None:
      self._latent_fraction = float(value)