# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------------

# This file is part of Code_Saturne, a general-purpose CFD tool.
#
# Copyright (C) 1998-2014 EDF S.A.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301, USA.

#-------------------------------------------------------------------------------

"""
This module defines the values of reference.

This module contains the following classes and function:
- ReferenceValuesModel
- ReferenceValuesTestCase
"""

#-------------------------------------------------------------------------------
# Library modules import
#-------------------------------------------------------------------------------

import sys, unittest

#-------------------------------------------------------------------------------
# Application modules import
#-------------------------------------------------------------------------------

from Base.Common import *
import Base.Toolbox as Tool
from Base.XMLvariables import Variables, Model
from Base.XMLmodel import ModelTest
from Pages.CoalCombustionModel import CoalCombustionModel
from Pages.GasCombustionModel import GasCombustionModel
from Pages.ElectricalModel import ElectricalModel
from Pages.AtmosphericFlowsModel import AtmosphericFlowsModel
from Pages.CompressibleModel import CompressibleModel

#-------------------------------------------------------------------------------
# Reference values model class
#-------------------------------------------------------------------------------

class ReferenceValuesModel(Model):
    """
    Manage the input/output markups in the xml doc about Pressure
    """
    def __init__(self, case):
        """
        Constructor.
        """
        self.case = case

        self.node_models    = self.case.xmlGetNode('thermophysical_models')
        self.node_reference = self.node_models.xmlInitNode('reference_values')
        self.node_veloce    = self.node_models.xmlGetNode('velocity_pressure')
        self.node_coal      = self.node_models.xmlGetNode('solid_fuels', 'model')
        self.node_gas       = self.node_models.xmlGetNode('gas_combustion',  'model')
        self.node_joule     = self.node_models.xmlGetNode('joule_effect',  'model')
        self.node_atmo      = self.node_models.xmlGetNode('atmospheric_flows',  'model')
        self.node_comp      = self.node_models.xmlGetNode('compressible',  'model')


    def defaultValues(self):
        """
        Return reference values by default
        """
        default = {}
        default['reference_pressure']    = 1.01325e+5
        default['reference_velocity']    = 1.0
        default['length_choice']         = 'automatic'
        default['reference_length']      = 1.0
        default['reference_temperature'] = 1273.15
        default['fuel_temperature']      = 436.
        default['oxydant_temperature']   = 353.
        if (self.getParticularPhysical() == "atmo" or
            self.getParticularPhysical() == "gas"):
            default['reference_temperature'] = 293.15
        # molar mass for dry air
        default['reference_mass_molar'] = 28.966e-3

        return default


    @Variables.undoLocal
    def setPressure(self, value):
        """
        Set value of reference pressure into xml file.
        """
        self.isGreaterOrEqual(value, 0.0)
        self.node_reference.xmlSetData('pressure',value)


    @Variables.noUndo
    def getPressure(self):
        """
        Return the value of reference pressure.
        """
        value = self.node_reference.xmlGetDouble('pressure')
        if value == None:
            value = self.defaultValues()['reference_pressure']
            self.setPressure(value)

        return value


    @Variables.undoLocal
    def setVelocity(self, value):
        """
        Set value of reference velocity into xml file.
        """
        self.isGreaterOrEqual(value, 0.0)
        self.node_reference.xmlSetData('velocity',value)


    @Variables.noUndo
    def getVelocity(self):
        """
        Return the value of reference velocity.
        """
        value = self.node_reference.xmlGetDouble('velocity')
        if value == None:
            value = self.defaultValues()['reference_velocity']
            self.setVelocity(value)

        return value


    @Variables.undoLocal
    def setLengthChoice(self, choice):
        """
        Set the Length choice.
        """
        self.isInList(choice, ['automatic','prescribed'])

        node_init = self.node_reference.xmlInitNode('length')
        node_init['choice'] = choice
        if choice == 'automatic':
            self.node_reference.xmlRemoveChild('length')


    @Variables.noUndo
    def getLengthChoice(self):
        """
        Get the Length choice.
        """
        node_init = self.node_reference.xmlInitNode('length')
        choice = node_init['choice']
        if choice == None:
            choice = self.defaultValues()['length_choice']
            self.setLengthChoice(choice)
        return choice


    @Variables.undoLocal
    def setLength(self, value):
        """
        Set value of reference length into xml file.
        """
        self.isGreaterOrEqual(value, 0.0)
        self.node_reference.xmlSetData('length',value)


    @Variables.noUndo
    def getLength(self):
        """
        Return the value of reference length.
        """
        value = self.node_reference.xmlGetDouble('length')
        if value == None:
            value = self.defaultValues()['reference_length']
            self.setLength(value)

        return value


    @Variables.undoLocal
    def setTemperature(self, value):
        """
        Set reference temperature.
        """
        self.isGreater(value, 0.0)
        self.node_reference.xmlSetData('temperature', value)


    @Variables.noUndo
    def getTemperature(self):
        """
        Get reference temperature.
        """
        value = self.node_reference.xmlGetDouble('temperature')
        if not value :
            value = self.defaultValues()['reference_temperature']
            self.setTemperature(value)
        return value


    @Variables.undoLocal
    def setTempOxydant(self, value):
        """
        Set reference temperature for Oxydant.
        """
        self.isGreater(value, 0.0)
        self.node_reference.xmlSetData('oxydant_temperature', value)


    @Variables.noUndo
    def getTempOxydant(self):
        """
        Get reference temperaturefor Oxydant.
        """
        value = self.node_reference.xmlGetDouble('oxydant_temperature')
        if not value :
            value = self.defaultValues()['oxydant_temperature']
            self.setTempOxydant(value)
        return value


    @Variables.undoLocal
    def setTempFuel(self, value):
        """
        Set reference temperature.
        """
        self.isGreater(value, 0.0)
        self.node_reference.xmlSetData('fuel_temperature', value)


    @Variables.noUndo
    def getTempFuel(self):
        """
        Get reference temperature.
        """
        value = self.node_reference.xmlGetDouble('fuel_temperature')
        if not value :
            value = self.defaultValues()['fuel_temperature']
            self.setTempFuel(value)
        return value


    @Variables.undoLocal
    def setMassemol(self, value):
        """
        Set reference molar mass.
        """
        self.isGreater(value, 0.0)
        self.node_reference.xmlSetData('mass_molar', value)


    @Variables.noUndo
    def getMassemol(self):
        """
        Get reference molar mass.
        """
        value = self.node_reference.xmlGetDouble('mass_molar')
        if not value :
            value = self.defaultValues()['reference_mass_molar']
            self.setMassemol(value)
        return value


    @Variables.noUndo
    def getParticularPhysical(self):
        """
        Get model for set temperature for relative model
        """
        model = 'off'

        coalModel = CoalCombustionModel(self.case).getCoalCombustionModel()
        gasModel = GasCombustionModel(self.case).getGasCombustionModel()
        jouleModel = ElectricalModel(self.case).getElectricalModel()
        atmoModel = AtmosphericFlowsModel(self.case).getAtmosphericFlowsModel()
        compModel = CompressibleModel(self.case).getCompressibleModel()

        if coalModel != 'off':
            model = "coal"
        elif gasModel != 'off':
            model = "gas"
        elif jouleModel != 'off':
            model = "joule"
        elif atmoModel != 'off':
            model = "atmo"
        elif compModel != 'off':
            model = "comp"

        return model


#-------------------------------------------------------------------------------
# ReferenceValuesModel test case
#-------------------------------------------------------------------------------

class ReferenceValuesTestCase(ModelTest):
    """
    """
    def checkReferenceValuesInstantiation(self):
        """Check whether the ReferenceValuesModel class could be instantiated"""
        model = None
        model = ReferenceValuesModel(self.case)
        assert model != None, 'Could not instantiate ReferenceValuesModel'

    def checkGetandSetPressure(self):
        """Check whether the ReferenceValuesModel class could be set and get Pressure"""
        mdl = ReferenceValuesModel(self.case)
        mdl.setPressure(13e+5)

        doc = """<velocity_pressure>
                    <variable label="Pressure" name="pressure">
                            <reference_pressure>1.3e+06</reference_pressure>
                    </variable>
                    <variable label="Velocity" name="velocity"/>
                    <property label="total_pressure" name="total_pressure"/>
                    <property label="Yplus" name="yplus" support="boundary"/>
                    <property label="Efforts" name="effort" support="boundary"/>
                </velocity_pressure>"""
        assert mdl.node_veloce == self.xmlNodeFromString(doc),\
            'Could not set pressure ReferenceValuesModel'
        assert mdl.getPressure() == 13e+5,\
            'Could not get pressure ReferenceValuesModel'

    def checkGetandSetTemperature(self):
        """Check whether the ReferenceValuesModel class could be set and get Temperature"""
        mdl = ReferenceValuesModel(self.case)
        from Pages.CoalCombustionModel import CoalCombustionModel
        CoalCombustionModel(self.case).setCoalCombustionModel('homogeneous_fuel')
        del CoalCombustionModel
        mdl.setTemperature(55.5)

        doc = """<solid_fuels model="homogeneous_fuel">
                    <variable label="Enthalpy" name="enthalpy" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="NP_CP01" name="np_coal01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="XCH_CP01" name="x_coal01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="XCK_CP01" name="xck_coal01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="ENT_CP01" name="h2_coal01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="Fr_MV101" name="mv1_fraction_01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="Fr_MV201" name="mv2_fraction_01" type="model"><flux_reconstruction status="off"/></variable>
                    <variable label="Fr_HET" name="het_fraction" type="model"><flux_reconstruction status="off"/></variable>
                    <property label="Temp_GAZ" name="t_gas"/>
                    <property label="ROM_GAZ" name="rho_gas"/>
                    <property label="YM_CHx1m" name="ym_chx1m"/>
                    <property label="YM_CHx2m" name="ym_chx2m"/>
                    <property label="YM_CO" name="ym_co"/>
                    <property label="YM_O2" name="ym_o2"/>
                    <property label="YM_CO2" name="ym_co2"/>
                    <property label="YM_H2O" name="ym_h2o"/>
                    <property label="YM_N2" name="ym_n2"/>
                    <property label="XM" name="xm"/>
                    <property label="Temp_CP01" name="t_coal01"/>
                    <property label="Frm_CP01" name="w_solid_coal01"/>
                    <property label="Rho_CP01" name="rho_coal01"/>
                    <property label="Dia_CK01" name="diameter_coal01"/>
                    <property label="Ga_DCH01" name="dissapear_rate_coal01"/>
                    <property label="Ga_DV101" name="m_transfer_v1_coal01"/>
                    <property label="Ga_DV201" name="m_transfer_v2_coal01"/>
                    <property label="Ga_HET01" name="het_ts_coal01"/>
                    <property label="ntLuminance_4PI" name="ntLuminance_4PI"/>
                    <reference_temperature>55.5</reference_temperature>
                 </solid_fuels>"""
        assert mdl.node_coal == self.xmlNodeFromString(doc),\
            'Could not set temperature ReferenceValuesModel'
        assert mdl.getTemperature() == 55.5,\
            'Could not get temperature ReferenceValuesModel'

    def checkGetandSsetMassemol(self):
        """Check whether the ReferenceValuesModel class could be set and get Molar mass"""
        mdl = ReferenceValuesModel(self.case)
        from Pages.GasCombustionModel import GasCombustionModel
        GasCombustionModel(self.case).setGasCombustionModel('ebu')
        del GasCombustionModel
        mdl.setMassemol(50.8e-3)
        doc = """<gas_combustion model="ebu">
                    <reference_mass_molar>0.0508</reference_mass_molar>
                 </gas_combustion>"""
        assert mdl.node_gas == self.xmlNodeFromString(doc),\
            'Could not set molar mass ReferenceValuesModel'
        assert mdl.getMassemol() == 50.8e-3,\
            'Could not get molar mass ReferenceValuesModel'


def suite():
    testSuite = unittest.makeSuite(ReferenceValuesTestCase, "check")
    return testSuite

def runTest():
    print("ReferenceValuesTestCase")
    runner = unittest.TextTestRunner()
    runner.run(suite())

#-------------------------------------------------------------------------------
# End
#-------------------------------------------------------------------------------