# created November 2015
# by TEASER4 Development Team

"""This module includes a class for central AHU
"""

class BuildingAHU(object):
    '''Building Class

    This class represents a BuildingAHU.

    !AixLib sepcific!

    Parameters
    ----------

    parent: Project()
        The parent class of this object, the Building the AHU belongs to.
        Allows for better control of hierarchical structures.
        (default: None)

    Attributes
    ----------
    heating : Boolean (default = True)
        Heating Function of AHU
    cooling : Boolean (default = True)
        Cooling Function of AHU
    dehumidification : Boolean (default = True)
        Dehumidification Function of AHU (Cooling and Heating must be enabled)
    humidification : Boolean (default = True)
        Humidification Function of AHU (Cooling and Heating must be enabled)
    heat_recovery : Boolean (default = True)
        Is a HeatRecoverySystem physically integrated in the AHU? in AixLib:
        "HRS"
    by_pass_dehumidification : float (default = 0.2)
         By-pass factor of cooling coil during dehumidification. Necessary to
         calculate the real outgoing enthalpy flow of heat exchanger in
         dehumidification mode taking the surface enthalpy of the cooling
         coil into account. In AixLib called "BPF_DeHu"
    efficiency_recovery : float (default = 0.8)
        efficiency of HRS in the AHU modes when HRS is enabled. in AixLib:
        "efficiencyHRS_enabled"
    efficiency_revocery_false : float (default = 0.2)
        taking a little heat transfer into account although HRS is disabled
        (in case that a HRS is physically installed in the AHU) in AixLib:
        "efficiencyHRS_disabled"
    profile_temperature : [float]
        timeline of temperatures requirements for AHU simulation
    profile_min_relative_humidity : [float]
        timeline of relative humidity requirements for AHU simulation
    profile_max_relative_humidity : [float]
        timeline of relative humidity requirements for AHU simulation
    profile_v_flow : [int]
        timeline of desired relative v_flow of the AHU simulation (0..1)

    '''

    def __init__(self, parent=None):
        '''Constructor of BuildingAHU Class
        '''
        self.parent = parent

        self.heating = True
        self.cooling = True
        self.dehumidification = True
        self.humidification = True
        self.heat_recovery = True
        self.by_pass_dehumidification = 0.2
        self.efficiency_recovery = 0.8
        self.efficiency_revocery_false = 0.2

        self._profile_min_relative_humidity = None
        self._profile_max_relative_humidity = None
        self._profile_v_flow = None
        self._profile_temperature = None


    @property
    def parent(self):
        return self.__parent

    @parent.setter
    def parent(self, value):
        from teaser.logic.buildingobjects.building import Building
        import inspect
        if inspect.isclass(Building):
            self.__parent = value
            self.__parent.central_ahu = self


    @property
    def profile_min_relative_humidity(self):
        return self._profile_min_relative_humidity

    @profile_min_relative_humidity.setter
    def profile_min_relative_humidity(self, value):

        if self._profile_min_relative_humidity is None:
            pass
        else:
            self.parent.file_ahu = ("/AHU_" +
                                    self.parent.name +
                                    ".mat")

        self._profile_min_relative_humidity = value

    @property
    def profile_max_relative_humidity(self):
        return self._profile_max_relative_humidity

    @profile_max_relative_humidity.setter
    def profile_max_relative_humidity(self, value):

        if self._profile_max_relative_humidity is None:
            pass
        else:
            self.parent.file_ahu = ("/AHU_" +
                                    self.parent.name +
                                    ".mat")

        self._profile_max_relative_humidity = value


    @property
    def profile_v_flow(self):
        return self._profile_v_flow

    @profile_v_flow.setter
    def profile_v_flow(self, value):

        if self._profile_v_flow is None:
            pass
        else:
            self.parent.file_ahu = ("/AHU_" +
                                    self.parent.name +
                                    ".mat")

        self._profile_v_flow = value

    @property
    def profile_temperature(self):
        return self._profile_temperature

    @profile_temperature.setter
    def profile_temperature(self, value):

        if self._profile_temperature is None:
            pass
        else:
            self.parent.file_ahu = ("/AHU_" +
                                    self.parent.name +
                                    ".mat")
        self._profile_temperature = value
