/**
 * The common library
 * @file param_config.h
 */

#ifndef PARAM_CONFIG_H_
#define PARAM_CONFIG_H_

#include <wx/confbase.h>
#include <wx/fileconf.h>
#include <boost/ptr_container/ptr_vector.hpp>
#include <colors.h>
#include <limits>



/**
 * inline ConfigBaseWriteDouble
 * This is a helper funvtion tor write doubles in config
 * We cannot use wxConfigBase->Write for a double, because
 * this function uses a format with very few digits in mantissa,
 * and truncation issues are frequent.
 * We use here a better floating format.
 *
 * Note: prior to 2.9.1, the separator was localized, and after, uses
 * the "C" notation
 */
 void inline ConfigBaseWriteDouble( wxConfigBase* aConfig,
                                    const wxString& aKey, double aValue )
 {
    wxString tnumber;

#if wxCHECK_VERSION(2,9,1)
    tnumber = wxString::FromCDouble( aValue, 12 );
#else
    tnumber.Printf( wxT("%12f"), aValue );
#endif
    aConfig->Write( aKey, tnumber );
}


/** Type of parameter in the configuration file */
enum paramcfg_id {
    PARAM_INT,
    PARAM_INT_WITH_SCALE,
    PARAM_SETCOLOR,
    PARAM_DOUBLE,
    PARAM_BOOL,
    PARAM_LIBNAME_LIST,
    PARAM_WXSTRING,
    PARAM_FILENAME,
    PARAM_COMMAND_ERASE,
    PARAM_FIELDNAME_LIST
};


/**
 * Class PARAM_CFG_BASE
 * is a base class which establishes the interface functions ReadParam and SaveParam,
 * which are implemented by a number of derived classes, and these function's
 * doxygen comments are inherited also.
 * <p>
 * See kicad.odt or kicad.pdf, chapter 2 :
 * "Installation and configuration/Initialization of the default config".
 */
class PARAM_CFG_BASE
{
public:
    const wxChar* m_Ident;  ///<  Keyword in config data
    paramcfg_id   m_Type;   ///<  Type of parameter
    const wxChar* m_Group;  ///<  Group name (this is like a path in the config data)
    bool          m_Setup;  ///<  Install or Project based parameter, true == install

public:
    PARAM_CFG_BASE( const wxChar* ident, const paramcfg_id type, const wxChar* group = NULL );
    virtual ~PARAM_CFG_BASE() {}

    /**
     * Function ReadParam
     * reads the value of the parameter stored in aConfig
     * @param aConfig = the wxConfigBase that holds the parameter
     */
    virtual void ReadParam( wxConfigBase* aConfig ) const {};

    /**
     * Function SaveParam
     * saves the value of the parameter stored in aConfig
     * @param aConfig = the wxConfigBase that can store the parameter
     */
    virtual void SaveParam( wxConfigBase* aConfig ) const {};
};


/**
 * Configuration parameter - Integer Class
 *
 */
class PARAM_CFG_INT      : public PARAM_CFG_BASE
{
public:
    int* m_Pt_param;    ///<  Pointer to the parameter value
    int  m_Min, m_Max;  ///<  Minimum and maximum values of the param type
    int  m_Default;     ///<  The default value of the parameter

public:
    PARAM_CFG_INT( const wxChar* ident, int* ptparam,
                       int default_val = 0,
                       int min = std::numeric_limits<int>::min(),
                       int max = std::numeric_limits<int>::max(),
                       const wxChar* group = NULL );
    PARAM_CFG_INT( bool Insetup, const wxChar* ident, int* ptparam,
                   int default_val = 0,
                   int min = std::numeric_limits<int>::min(),
                   int max = std::numeric_limits<int>::max(),
                   const wxChar* group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};

/**
 * Configuration parameter - Integer Class
 * with unit conversion.
 * Mainly used to store an integer value in millimeters (or inches)
 * and retrieve it in internal units
 * the stored value is a floating number
 */
class PARAM_CFG_INT_WITH_SCALE : public PARAM_CFG_INT
{
public:
    double  m_BIU_to_cfgunit;   ///<  the factor to convert the saved value in internal value

public:
    PARAM_CFG_INT_WITH_SCALE( const wxChar* ident, int* ptparam,
                       int default_val = 0,
                       int min = std::numeric_limits<int>::min(),
                       int max = std::numeric_limits<int>::max(),
                       const wxChar* group = NULL,
                       double aBiu2cfgunit = 1.0);
    PARAM_CFG_INT_WITH_SCALE( bool Insetup, const wxChar* ident, int* ptparam,
                   int default_val = 0,
                   int min = std::numeric_limits<int>::min(),
                   int max = std::numeric_limits<int>::max(),
                   const wxChar* group = NULL,
                   double aBiu2cfgunit = 1.0 );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/**
 * Configuration parameter - SetColor Class
 *
 */
class PARAM_CFG_SETCOLOR : public PARAM_CFG_BASE
{
public:
    EDA_COLOR_T* m_Pt_param;    ///<  Pointer to the parameter value
    EDA_COLOR_T  m_Default;     ///<  The default value of the parameter

public:
    PARAM_CFG_SETCOLOR( const wxChar* ident, EDA_COLOR_T* ptparam,
                        EDA_COLOR_T default_val, const wxChar* group = NULL );
    PARAM_CFG_SETCOLOR( bool Insetup, const wxChar* ident, EDA_COLOR_T* ptparam,
                        EDA_COLOR_T default_val, const wxChar* group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/**
 * Configuration parameter - Double Precision Class
 *
 */
class PARAM_CFG_DOUBLE   : public PARAM_CFG_BASE
{
public:
    double* m_Pt_param;     ///<  Pointer to the parameter value
    double  m_Default;      ///<  The default value of the parameter
    double  m_Min, m_Max;   ///<  Minimum and maximum values of the param type

public:
    PARAM_CFG_DOUBLE( const wxChar* ident, double* ptparam,
                          double default_val = 0.0, double min = 0.0, double max = 10000.0,
                          const wxChar* group = NULL );
    PARAM_CFG_DOUBLE( bool Insetup, const wxChar* ident, double* ptparam,
                      double default_val = 0.0, double min = 0.0, double max = 10000.0,
                      const wxChar* group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/**
 * Configuration parameter - Boolean Class
 *
 */
class PARAM_CFG_BOOL     : public PARAM_CFG_BASE
{
public:
    bool* m_Pt_param;       ///<  Pointer to the parameter value
    int   m_Default;        ///<  The default value of the parameter

public:
    PARAM_CFG_BOOL( const wxChar* ident, bool* ptparam,
                        int default_val = false, const wxChar* group = NULL );
    PARAM_CFG_BOOL( bool Insetup, const wxChar* ident, bool* ptparam,
                    int default_val = false, const wxChar* group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/**
 * Configuration parameter - wxString Class
 *
 */
class PARAM_CFG_WXSTRING     : public PARAM_CFG_BASE
{
public:
    wxString* m_Pt_param;       ///<  Pointer to the parameter value
    wxString  m_default;        ///<  The default value of the parameter

public:
    PARAM_CFG_WXSTRING( const wxChar* ident, wxString* ptparam, const wxChar* group = NULL );
    PARAM_CFG_WXSTRING( bool            Insetup,
                        const wxChar*   ident,
                        wxString*       ptparam,
                        const wxString& default_val = wxEmptyString,
                        const wxChar*   group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/**
 * Configuration parameter - PARAM_CFG_FILENAME Class
 * Same as PARAM_CFG_WXSTRING, but stores "\" as "/".
 * and replace "/" by "\" under Windows.
 * Used to store paths and filenames in config files
 */
class PARAM_CFG_FILENAME     : public PARAM_CFG_BASE
{
public:
    wxString* m_Pt_param;    ///<  Pointer to the parameter value

public:
    PARAM_CFG_FILENAME( const wxChar* ident, wxString* ptparam, const wxChar* group = NULL );
    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


class PARAM_CFG_LIBNAME_LIST : public PARAM_CFG_BASE
{
public:
    wxArrayString* m_Pt_param;     ///<  Pointer to the parameter value

public:
    PARAM_CFG_LIBNAME_LIST( const wxChar*  ident,
                                wxArrayString* ptparam,
                                const wxChar*  group = NULL );

    virtual void ReadParam( wxConfigBase* aConfig ) const;
    virtual void SaveParam( wxConfigBase* aConfig ) const;
};


/** A list of parameters type */
typedef boost::ptr_vector<PARAM_CFG_BASE> PARAM_CFG_ARRAY;

#endif  // PARAM_CONFIG_H_
