#################################################################################
# The Institute for the Design of Advanced Energy Systems Integrated Platform
# Framework (IDAES IP) was produced under the DOE Institute for the
# Design of Advanced Energy Systems (IDAES).
#
# Copyright (c) 2018-2023 by the software owners: The Regents of the
# University of California, through Lawrence Berkeley National Laboratory,
# National Technology & Engineering Solutions of Sandia, LLC, Carnegie Mellon
# University, West Virginia University Research Corporation, et al.
# All rights reserved.  Please see the files COPYRIGHT.md and LICENSE.md
# for full copyright and license information.
#################################################################################
"""
Base class for EoS modules.

Raises NotImplementedErrors for all expected methods in case developer misses
some. EoS developers should overload all these methods.
"""
# TODO: Missing docstrings
# pylint: disable=missing-function-docstring

from pyomo.environ import units as pyunits
from idaes.core.util.constants import Constants as const
from idaes.models.properties.modular_properties.base.utility import (
    get_method,
    get_component_object as cobj,
)
from idaes.core.util.exceptions import ConfigurationError


class EoSBase:
    """Base class for modular equation-of-state classes."""

    @staticmethod
    def gas_constant(b):
        # Utility method to convert gas constant to base units
        base_units = b.params.get_metadata().default_units

        return pyunits.convert(const.gas_constant, to_units=base_units.GAS_CONSTANT)

    @staticmethod
    def common(b, pobj):
        raise NotImplementedError(_msg(b, "common"))

    @staticmethod
    def calculate_scaling_factors(b, pobj):
        raise NotImplementedError(_msg(b, "calculate_scaling_factors"))

    @staticmethod
    def build_parameters(b):
        raise NotImplementedError(_msg(b, "build_parameters"))

    @staticmethod
    def get_vol_mol_pure(b, phase, comp, temperature):
        try:
            vol_mol = get_method(b, "vol_mol_" + phase + "_comp", comp)(
                b, cobj(b, comp), temperature
            )
        except (AttributeError, ConfigurationError):
            # vol_mol not defined, try for dens_mol instead
            try:
                vol_mol = 1 / get_method(b, "dens_mol_" + phase + "_comp", comp)(
                    b, cobj(b, comp), temperature
                )
            except (AttributeError, ConfigurationError):
                # Does not have either vol_mol or dens_mol
                suffix = "_" + phase + "_comp"
                raise ConfigurationError(
                    f"{b.name} does not have a method defined to use "
                    f"when calculating molar volume and density for "
                    f"component {comp} in phase {phase}. Each component "
                    f"must define a method for either vol_mol{suffix} or "
                    f"dens_mol{suffix}."
                )
        return vol_mol

    @staticmethod
    def act_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "act_phase_comp"))

    @staticmethod
    def act_phase_comp_true(b, p, j):
        raise NotImplementedError(_msg(b, "act_phase_comp_true"))

    @staticmethod
    def act_phase_comp_appr(b, p, j):
        raise NotImplementedError(_msg(b, "act_phase_comp_appr"))

    @staticmethod
    def act_coeff_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "act_coeff_phase_comp"))

    @staticmethod
    def act_coeff_phase_comp_true(b, p, j):
        raise NotImplementedError(_msg(b, "act_coeff_phase_comp_true"))

    @staticmethod
    def act_coeff_phase_comp_appr(b, p, j):
        raise NotImplementedError(_msg(b, "act_coeff_phase_comp_appr"))

    @staticmethod
    def cp_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "cp_mol_phase"))

    @staticmethod
    def cp_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "cp_mol_phase_comp"))

    @staticmethod
    def cv_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "cv_mol_phase"))

    @staticmethod
    def cv_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "cv_mol_phase_comp"))

    @staticmethod
    def heat_capacity_ratio_phase(b, p):
        return b.cp_mol_phase[p] / b.cv_mol_phase[p]

    @staticmethod
    def cv_mol_ig_comp_pure(b, j):
        # Method for calculating pure component ideal gas cv from cp
        # For ideal gases, cv = cp - R
        units = b.params.get_metadata().derived_units
        R = pyunits.convert(const.gas_constant, to_units=units.HEAT_CAPACITY_MOLE)
        return get_method(b, "cp_mol_ig_comp", j)(b, cobj(b, j), b.temperature) - R

    @staticmethod
    def cv_mol_ls_comp_pure(b, p, j):
        # Method for calculating pure component liquid and solid cv from cp
        # For ideal (incompressible) liquids and solids, cv = cp
        pobj = b.params.get_phase(p)
        if pobj.is_liquid_phase():
            return get_method(b, "cp_mol_liq_comp", j)(b, cobj(b, j), b.temperature)
        elif pobj.is_solid_phase():
            return get_method(b, "cp_mol_sol_comp", j)(b, cobj(b, j), b.temperature)

    @staticmethod
    def dens_mass_phase(b, p):
        raise NotImplementedError(_msg(b, "dens_mass_phase"))

    @staticmethod
    def dens_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "dens_mol_phase"))

    @staticmethod
    def energy_internal_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "energy_internal_mol_phase"))

    @staticmethod
    def energy_internal_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "energy_internal_mol_phase_comp"))

    @staticmethod
    def energy_internal_mol_ig_comp_pure(b, j):
        # Method for calculating pure component U from H for ideal gases
        units = b.params.get_metadata().derived_units
        R = pyunits.convert(const.gas_constant, to_units=units.HEAT_CAPACITY_MOLE)

        if cobj(b, j).parent_block().config.include_enthalpy_of_formation:
            # First, need to determine correction between U_form and H_form
            # U_form = H_form - delta_n*R*T
            ele_comp = cobj(b, j).config.elemental_composition
            if ele_comp is None:
                raise ConfigurationError(
                    "{} calculation of internal energy requires elemental "
                    "composition of all species. Please set this using the "
                    "elemental_composition argument in the component "
                    "declaration ({}).".format(b.name, j)
                )

            delta_n = 0
            for e, s in ele_comp.items():
                # Check for any element which is vapor at standard state
                if e in ["He", "Ne", "Ar", "Kr", "Xe", "Ra"]:
                    delta_n += -s
                elif e in ["F", "Cl", "H", "N", "O"]:
                    delta_n += -s / 2  # These are diatomic at standard state

            delta_n += 1  # One mole of gaseous compound is formed
            dU_form = delta_n * R * b.params.temperature_ref
        else:
            dU_form = 0  # No heat of formation to correct

        # For ideal gases, U = H - R(T-T_ref) + dU_form
        return (
            get_method(b, "enth_mol_ig_comp", j)(b, cobj(b, j), b.temperature)
            - R * (b.temperature - b.params.temperature_ref)
            + dU_form
        )

    @staticmethod
    def energy_internal_mol_ls_comp_pure(b, p, j):
        pobj = b.params.get_phase(p)
        if pobj.is_liquid_phase():
            mthd = get_method(b, "enth_mol_liq_comp", j)
        elif pobj.is_solid_phase():
            mthd = get_method(b, "enth_mol_sol_comp", j)

        # Method for calculating pure component U from H for liquids & solids
        units = b.params.get_metadata().derived_units
        R = pyunits.convert(const.gas_constant, to_units=units.HEAT_CAPACITY_MOLE)

        if cobj(b, j).parent_block().config.include_enthalpy_of_formation:
            # First, need to determine correction between U_form and H_form
            # U_form = H_form - delta_n*R*T
            ele_comp = cobj(b, j).config.elemental_composition
            if ele_comp is None:
                raise ConfigurationError(
                    "{} calculation of internal energy requires elemental "
                    "composition of all species. Please set this using the "
                    "elemental_composition argument in the component "
                    "declaration ({}).".format(b.name, j)
                )

            delta_n = 0
            for e, s in ele_comp.items():
                # Check for any element which is vapor at standard state
                if e in ["He", "Ne", "Ar", "Kr", "Xe", "Ra"]:
                    delta_n += -s
                elif e in ["F", "Cl", "H", "N", "O"]:
                    delta_n += -s / 2  # These are diatomic at standard state
            dU_form = delta_n * R * b.params.temperature_ref

            # For ideal (incompressible) liquids and solids, U = H + dU_form
            return mthd(b, cobj(b, j), b.temperature) + dU_form
        else:
            # If not including heat of formation, U = H
            return mthd(b, cobj(b, j), b.temperature)

    @staticmethod
    def enth_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "enth_mol_phase"))

    @staticmethod
    def enth_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "enth_mol_phase_comp"))

    @staticmethod
    def entr_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "entr_mol_phase"))

    @staticmethod
    def entr_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "entr_mol_phase_comp"))

    @staticmethod
    def fug_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "fug_phase_comp"))

    @staticmethod
    def fug_phase_comp_eq(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_phase_comp_eq"))

    @staticmethod
    def log_fug_phase_comp_eq(b, p, j, pp):
        raise NotImplementedError(_msg(b, "log_fug_phase_comp_eq"))

    @staticmethod
    def fug_coeff_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "fug_coeff_phase_comp"))

    @staticmethod
    def fug_coeff_phase_comp_eq(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_coeff_phase_comp_eq"))

    @staticmethod
    def fug_phase_comp_Tbub(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_phase_comp_Tbub"))

    @staticmethod
    def fug_phase_comp_Tdew(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_phase_comp_Tdew"))

    @staticmethod
    def fug_phase_comp_Pbub(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_phase_comp_Pbub"))

    @staticmethod
    def fug_phase_comp_Pdew(b, p, j, pp):
        raise NotImplementedError(_msg(b, "fug_phase_comp_Pdew"))

    @staticmethod
    def gibbs_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "gibbs_mol_phase"))

    @staticmethod
    def gibbs_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "gibbs_mol_phase_comp"))

    @staticmethod
    def isentropic_speed_sound_phase(b, p):
        raise NotImplementedError(_msg(b, "isentropic_speed_sound_phase"))

    @staticmethod
    def isothermal_speed_sound_phase(b, p):
        raise NotImplementedError(_msg(b, "isothermal_speed_sound_phase"))

    def pressure_osm_phase(b, p):
        raise NotImplementedError(_msg(b, "pressure_osm_phase"))

    @staticmethod
    def vol_mol_phase(b, p):
        raise NotImplementedError(_msg(b, "vol_mol_phase"))

    @staticmethod
    def vol_mol_phase_comp(b, p, j):
        raise NotImplementedError(_msg(b, "vol_mol_phase_comp"))


def _msg(b, attr):
    return (
        "{} Equation of State module has not implemented a method for {}. "
        "Please contact the EoS developer or use a different module.".format(
            b.name, attr
        )
    )
