/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2022 Mikolaj Wielgus
 * Copyright (C) 2022 CERN
 * Copyright (C) 2022-2023 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 3
 * 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, you may find one here:
 * https://www.gnu.org/licenses/gpl-3.0.html
 * or you may search the http://www.gnu.org website for the version 3 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef SIM_MODEL_H
#define SIM_MODEL_H

#include <wx/string.h>
#include <map>
#include <utility>

#include <reporter.h>
#include <sch_field.h>
#include <lib_field.h>

// Must be included after sch_field.h (exactly eda_shape.h) to avoid a colliding
// declaration with a window header (under msys2)
#include <sim/sim_value.h>
#include <enum_vector.h>

class SIM_LIBRARY;
struct SPICE_ITEM;
class SPICE_GENERATOR;
class SIM_MODEL_SERIALIZER;
class PROJECT;


#define SIM_REFERENCE_FIELD wxT( "Reference" )
#define SIM_VALUE_FIELD wxT( "Value" )

#define SIM_DEVICE_TYPE_FIELD wxT( "Sim.Device" )
#define SIM_TYPE_FIELD wxT( "Sim.Type" )
#define SIM_PINS_FIELD wxT( "Sim.Pins" )
#define SIM_PARAMS_FIELD wxT( "Sim.Params" )
#define SIM_ENABLE_FIELD wxT( "Sim.Enable" )
#define SIM_LIBRARY_FIELD wxT( "Sim.Library" )
#define SIM_NAME_FIELD wxT( "Sim.Name" )


class SIM_MODEL
{
public:
    friend class SPICE_GENERATOR;
    friend class NETLIST_EXPORTER_SPICE;

    struct PIN;
    struct PARAM;

    // There's a trailing '_' because `DEVICE_TYPE` collides with something in Windows headers.
    DEFINE_ENUM_CLASS_WITH_ITERATOR( DEVICE_T,
        NONE,

        R,
        C,
        L,
        TLINE,
        SW,

        D,
        NPN,
        PNP,

        NJFET,
        PJFET,

        NMES,
        PMES,

        NMOS,
        PMOS,

        V,
        I,

        SUBCKT,
        XSPICE,

        KIBIS,

        SPICE
    )

    struct DEVICE_INFO
    {
        std::string fieldValue;
        std::string description;
        bool        isBuiltin;
    };


    DEFINE_ENUM_CLASS_WITH_ITERATOR( TYPE,
        NONE,

        R,
        R_POT,
        R_BEHAVIORAL,

        C,
        C_BEHAVIORAL,

        L,
        L_MUTUAL,
        L_BEHAVIORAL,

        TLINE_Z0,
        TLINE_RLGC,

        SW_V,
        SW_I,

        D,

        NPN_VBIC,
        PNP_VBIC,
        NPN_GUMMELPOON,
        PNP_GUMMELPOON,
        //NPN_MEXTRAM,
        //PNP_MEXTRAM,
        NPN_HICUM2,
        PNP_HICUM2,
        //NPN_HICUM_L0,
        //PNP_HICUM_L0,

        NJFET_SHICHMANHODGES,
        PJFET_SHICHMANHODGES,

        NJFET_PARKERSKELLERN,
        PJFET_PARKERSKELLERN,


        NMES_STATZ,
        PMES_STATZ,

        NMES_YTTERDAL,
        PMES_YTTERDAL,

        NMES_HFET1,
        PMES_HFET1,

        NMES_HFET2,
        PMES_HFET2,


        NMOS_VDMOS,
        PMOS_VDMOS,

        NMOS_MOS1,
        PMOS_MOS1,

        NMOS_MOS2,
        PMOS_MOS2,

        NMOS_MOS3,
        PMOS_MOS3,

        NMOS_BSIM1,
        PMOS_BSIM1,

        NMOS_BSIM2,
        PMOS_BSIM2,

        NMOS_MOS6,
        PMOS_MOS6,

        NMOS_MOS9,
        PMOS_MOS9,

        NMOS_BSIM3,
        PMOS_BSIM3,

        NMOS_B4SOI,
        PMOS_B4SOI,

        NMOS_BSIM4,
        PMOS_BSIM4,

        //NMOS_EKV2_6,
        //PMOS_EKV2_6,

        //NMOS_PSP,
        //PMOS_PSP,

        NMOS_B3SOIFD,
        PMOS_B3SOIFD,

        NMOS_B3SOIDD,
        PMOS_B3SOIDD,

        NMOS_B3SOIPD,
        PMOS_B3SOIPD,

        //NMOS_STAG,
        //PMOS_STAG,

        NMOS_HISIM2,
        PMOS_HISIM2,

        NMOS_HISIMHV1,
        PMOS_HISIMHV1,

        NMOS_HISIMHV2,
        PMOS_HISIMHV2,


        V,
        V_SIN,
        V_PULSE,
        V_EXP,
        /*V_SFAM,
        V_SFFM,*/
        V_PWL,
        V_WHITENOISE,
        V_PINKNOISE,
        V_BURSTNOISE,
        V_RANDUNIFORM,
        V_RANDNORMAL,
        V_RANDEXP,
        //V_RANDPOISSON,
        V_BEHAVIORAL,

        I,
        I_SIN,
        I_PULSE,
        I_EXP,
        /*I_SFAM,
        I_SFFM,*/
        I_PWL,
        I_WHITENOISE,
        I_PINKNOISE,
        I_BURSTNOISE,
        I_RANDUNIFORM,
        I_RANDNORMAL,
        I_RANDEXP,
        //I_RANDPOISSON,
        I_BEHAVIORAL,

        SUBCKT,
        XSPICE,

        KIBIS_DEVICE,
        KIBIS_DRIVER_DC,
        KIBIS_DRIVER_RECT,
        KIBIS_DRIVER_PRBS,

        RAWSPICE
    )

    struct INFO
    {
        DEVICE_T    deviceType;
        std::string fieldValue;
        std::string description;
    };


    struct SPICE_INFO
    {
        std::string itemType;
        std::string modelType = "";
        std::string inlineTypeString = "";
        std::string level = "";
        bool        isDefaultLevel = false;
        bool        hasExpression = false;
        std::string version = "";
    };


    struct PIN
    {
        const std::string name;
        std::string       symbolPinNumber;

        static constexpr auto NOT_CONNECTED = -1;
    };


    struct PARAM
    {
        // MS Windows compilers complain about the names IN and OUT, so we prefix them.
        enum DIR
        {
            DIR_IN,
            DIR_OUT,
            DIR_INOUT
        };

        enum class CATEGORY
        {
            PRINCIPAL,
            GEOMETRY,
            AC,
            DC,
            CAPACITANCE,
            TEMPERATURE,
            NOISE,
            DISTRIBUTED_QUANTITIES,
            LIMITING_VALUES,
            ADVANCED,
            FLAGS,
            WAVEFORM,
            INITIAL_CONDITIONS,
            SUPERFLUOUS
        };

        struct INFO
        {
            INFO( const std::string& aName = "",
                  unsigned                 aId = 0,
                  DIR                      aDir = DIR_INOUT,
                  SIM_VALUE::TYPE          aType = SIM_VALUE::TYPE_FLOAT,
                  const std::string&       aUnit = "",
                  CATEGORY                 aCategory = CATEGORY::PRINCIPAL,
                  const std::string&       aDefaultValue = "",
                  const std::string&       legacy_unused_value = "",
                  const std::string&       aDescription = "",
                  bool                     aIsSpiceInstanceParam = false,
                  bool                     aIsInstanceParam = false,
                  const std::string&       aSpiceModelName = "",
                  const std::string&       aSpiceInstanceName = "",
                  std::vector<std::string> aEnumValues = {} ) :
                name( aName ),
                id( aId ),
                dir( aDir ),
                type( aType ),
                unit( aUnit ),
                category( aCategory ),
                defaultValue( aDefaultValue ),
                description( aDescription ),
                isSpiceInstanceParam( aIsSpiceInstanceParam ),
                isInstanceParam( aIsInstanceParam ),
                spiceModelName( aSpiceModelName ),
                spiceInstanceName( aSpiceInstanceName ),
                enumValues( std::move( aEnumValues ) )
            {}

            std::string              name;
            unsigned                 id;
            DIR                      dir;
            SIM_VALUE::TYPE          type;
            std::string              unit;
            CATEGORY                 category;
            std::string              defaultValue;
            std::string              description;
            bool                     isSpiceInstanceParam;
            bool                     isInstanceParam;
            std::string              spiceModelName;
            std::string              spiceInstanceName;
            std::vector<std::string> enumValues;
        };

        std::string  value;
        const INFO&  info;

        PARAM( const INFO& aInfo ) :
                info( aInfo )
        {}
    };


    static DEVICE_INFO DeviceInfo( DEVICE_T aDeviceType );
    static INFO TypeInfo( TYPE aType );
    static SPICE_INFO SpiceInfo( TYPE aType );


    template <typename T>
    static TYPE ReadTypeFromFields( const std::vector<T>& aFields, REPORTER* aReporter );

    static std::unique_ptr<SIM_MODEL> Create( TYPE aType, const std::vector<LIB_PIN*>& aPins,
                                              REPORTER* aReporter );

    static std::unique_ptr<SIM_MODEL> Create( const SIM_MODEL* aBaseModel,
                                              const std::vector<LIB_PIN*>& aPins,
                                              REPORTER* aReporter );

    template <typename T>
    static std::unique_ptr<SIM_MODEL> Create( const SIM_MODEL* aBaseModel,
                                              const std::vector<LIB_PIN*>& aPins,
                                              const std::vector<T>& aFields,
                                              REPORTER* aReporter );

    template <typename T>
    static std::unique_ptr<SIM_MODEL> Create( const std::vector<T>& aFields,
                                              const std::vector<LIB_PIN*>& aPins,
                                              bool aResolved, REPORTER* aReporter );

    template <typename T>
    static std::string GetFieldValue( const std::vector<T>* aFields, const wxString& aFieldName,
                                      bool aResolve = true );

    template <typename T>
    static void SetFieldValue( std::vector<T>& aFields, const wxString& aFieldName,
                               const std::string& aValue );

    const SPICE_GENERATOR& SpiceGenerator() const { return *m_spiceGenerator; }
    const SIM_MODEL_SERIALIZER& Serializer() const { return *m_serializer; }


    // Move semantics.
    // Rule of five.
    virtual ~SIM_MODEL(); // = default in implementation file.
    SIM_MODEL() = delete;
    SIM_MODEL( const SIM_MODEL& aOther ) = delete;
    SIM_MODEL( SIM_MODEL&& aOther ) = default;
    SIM_MODEL& operator=(SIM_MODEL&& aOther ) = delete;

    template <typename T>
    void ReadDataFields( const std::vector<T>* aFields, const std::vector<LIB_PIN*>& aPins );

    template <typename T>
    void WriteFields( std::vector<T>& aFields ) const;

    SPICE_INFO GetSpiceInfo() const { return SpiceInfo( GetType() ); }

    void AddPin( const PIN& aPin );
    void ClearPins();

    int FindModelPinIndex( const std::string& aSymbolPinNumber );
    void AddParam( const PARAM::INFO& aInfo );

    DEVICE_INFO GetDeviceInfo() const { return DeviceInfo( GetDeviceType() ); }
    INFO GetTypeInfo() const { return TypeInfo( GetType() ); }

    DEVICE_T GetDeviceType() const { return GetTypeInfo().deviceType; }
    TYPE GetType() const { return m_type; }

    const SIM_MODEL* GetBaseModel() const { return m_baseModel; }
    virtual void SetBaseModel( const SIM_MODEL& aBaseModel );

    virtual std::vector<std::string> GetPinNames() const { return {}; }

    int GetPinCount() const { return static_cast<int>( m_pins.size() ); }
    const PIN& GetPin( unsigned aIndex ) const { return m_pins.at( aIndex ); }

    std::vector<std::reference_wrapper<const PIN>> GetPins() const;

    void SetPinSymbolPinNumber( int aPinIndex, const std::string& aSymbolPinNumber );
    virtual void SetPinSymbolPinNumber( const std::string& aPinName,
                                        const std::string& aSymbolPinNumber );


    int GetParamCount() const { return static_cast<int>( m_params.size() ); }
    virtual const PARAM& GetParam( unsigned aParamIndex ) const; // Return base parameter unless it's overridden.

    virtual const PARAM* GetTunerParam() const { return nullptr; }

    const PARAM* FindParam( const std::string& aParamName ) const;

    std::vector<std::reference_wrapper<const PARAM>> GetParams() const;

    const PARAM& GetParamOverride( unsigned aParamIndex ) const; // Return the actual parameter.
    const PARAM& GetBaseParam( unsigned aParamIndex ) const; // Always return base parameter if it exists.


    void SetParamValue( int aParamIndex, const std::string& aValue,
                        SIM_VALUE::NOTATION aNotation = SIM_VALUE::NOTATION::SI );
    void SetParamValue( const std::string& aParamName, const std::string& aValue,
                        SIM_VALUE::NOTATION aNotation = SIM_VALUE::NOTATION::SI );

    // Can modifying a model parameter also modify other parameters?
    virtual bool HasAutofill() const { return false; }
    virtual bool HasPrimaryValue() const { return false; }

    void SetIsEnabled( bool aIsEnabled ) { m_isEnabled = aIsEnabled; }
    bool IsEnabled() const { return m_isEnabled; }

    void SetIsStoredInValue( bool aIsStoredInValue )
    {
        if( HasPrimaryValue() )
            m_isStoredInValue = aIsStoredInValue;
    }
    bool IsStoredInValue() const { return m_isStoredInValue; }

    virtual void SwitchSingleEndedDiff( bool aDiff ) { };

    template <class T_symbol, class T_field>
    static bool InferSimModel( T_symbol& aSymbol, std::vector<T_field>* aFields, bool aResolve,
                               SIM_VALUE_GRAMMAR::NOTATION aNotation, wxString* aDeviceType,
                               wxString* aModelType, wxString* aModelParams, wxString* aPinMap );

    template <class T_symbol, class T_field>
    static void MigrateSimModel( T_symbol& aSymbol, const PROJECT* aProject );

protected:
    static std::unique_ptr<SIM_MODEL> Create( TYPE aType );

    SIM_MODEL( TYPE aType );
    SIM_MODEL( TYPE aType, std::unique_ptr<SPICE_GENERATOR> aSpiceGenerator );
    SIM_MODEL( TYPE aType, std::unique_ptr<SPICE_GENERATOR> aSpiceGenerator,
               std::unique_ptr<SIM_MODEL_SERIALIZER> aSerializer );

    void createPins( const std::vector<LIB_PIN*>& aSymbolPins );

    virtual int doFindParam( const std::string& aParamName ) const;
    virtual void doSetParamValue( int aParamIndex, const std::string& aValue );

private:
    template <typename T>
    void doReadDataFields( const std::vector<T>* aFields, const std::vector<LIB_PIN*>& aPins );

    template <typename T>
    void doWriteFields( std::vector<T>& aFields ) const;

    virtual bool requiresSpiceModelLine( const SPICE_ITEM& aItem ) const;

protected:
    std::vector<PARAM>                    m_params;
    std::vector<PIN>                      m_pins;
    const SIM_MODEL*                      m_baseModel;
    std::unique_ptr<SIM_MODEL_SERIALIZER> m_serializer;

private:
    std::unique_ptr<SPICE_GENERATOR>      m_spiceGenerator;

    const TYPE                            m_type;
    bool                                  m_isEnabled;
    bool                                  m_isStoredInValue;
};

#endif // SIM_MODEL_H