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#include "qmconfig.h"

#include "mainwindow.h"

#include <QFileDialog>

#include <QObject>

#include <QMessageBox>

#include <QFileInfo>

#include <QFile>

#include <QCoreApplication>

//#define DISPLAY_STRUCTURES

// Global Data

QmConfig    config;

/*

**  Local definitions

*/

char        datfile[20];                         /* Name of the data file */

char        filebase[20];                        /* Event file name base */

char        filepath[300];

char        addendumFilepath[300];

void QmConfig::load(const QString &cnfFile)

{

#ifdef DISPLAY_STRUCTURES

    display_structures();

#endif

    fileName = cnfFile;

    if ( !fileName.endsWith(".cnf",Qt::CaseInsensitive))

    {

        fileName.append(".cnf");

    }

    if (cnfFile.isEmpty())

    {

        fileName = QFileDialog::getOpenFileName(0, "Select Config File",

                                                         filepath,

                                                         "Data (*.cnf);;All (*.*)",

                                                         0,

                                                         );

    }

    //  No file selected

    //  Just exit

    if (fileName.isEmpty())

    {

        qDebug("No Config file selected");

        exit(1);

    }

    //

    //  Setup ffile names

    //

    QFileInfo info (fileName);

    strncpy(filebase, qPrintable(info.baseName()), 8);

    strcpy( datfile, filebase );

    strcat( datfile, ".dat" );

    strncpy(filepath, qPrintable(info.absolutePath()), sizeof(filepath)-3);

    strcat(filepath, "/");

    qDebug("FilePath:%s", filepath );

    if ( !open_read_config() )

    {

        if (QMessageBox::Cancel == QMessageBox::question ( 0,

                                                       "Config Load Error",

                                                       "Cannot load or read configuration file.\n"

                                                       "If you continue a new configuration will be created\n"

                                                       "If you cancel then the application will terminate.",

                                                       QMessageBox::Ok | QMessageBox::Cancel

                                                       ) )

        {

            qDebug("Cancel to bad config");

            exit(2);

        }

    }

}

bool QmConfig::open_read_config( void )

{

    bool result;

    // Open the file

    QFile configFile;

    configFile.setFileName(fileName);

    if ( ! configFile.open(QIODevice::ReadOnly) )

    {

        MainWindow::showMessage("Cannot open config File");

        return (false );

    }

    result = read_config(configFile);

    configFile.close();

    if ( result )

    {

        /*

         **  Post read calculations and fixups

         */

        if( datafilename[0] )

        {

            strcpy( datfile, datafilename );

            strcat( datfile, ".dat" );

        }

        nonequestrian_class = lookup_class( nonequestrian_class_abr );

    }

    return result;

}

/*========================================================================

 *

 *  Read in the configuration file

 *

 *  Purpose:

 *      This function is called to read in the configuration file

 *      NOTE: Must be maintained with the Writer function

 *

 *  Parameters:

 *      fcon        File number of the config file

 *

 *  Returns:

 *      FALSE if an error is encountered

 *

 *========================================================================*/

bool QmConfig::read_config( QFile &configFile  )

{

    int         len;                            /* Length of data read */

    int         fsize;                          /* Length of desired data */

    /*

     * Event name

     */

//qDebug( "Reading: Event Name" );

    fsize = sizeof( event_name );

    len = configFile.read( event_name, fsize );

    if( len != fsize )

        return ( FALSE );

    /*

     * Leg names

     */

//qDebug( "Reading: Leg Names" );

    fsize = sizeof( leg_name );

    len = configFile.read( (char *)leg_name, fsize );

    if( len != fsize )

        return ( FALSE );

    /*

     * Team definitions

     */

//qDebug( "Reading: Team Defs" );

    fsize = sizeof( t_def  );

    len = configFile.read( (char *)t_def, fsize );

    if( len != fsize )

        return ( FALSE );

    /*

     * Number of legs

     */

//qDebug( "Reading: Leg Nums" );

    fsize = sizeof( num_legs  );

    len = configFile.read( (char *)&num_legs, fsize );

    if( len != fsize)

        return ( FALSE );

    /*

     * Number of team splits

     */

//qDebug( "Reading: Team Splits" );

    fsize = sizeof( num_teams  );

    len = configFile.read( (char *)&num_teams, fsize );

    if( len != fsize )

        return ( FALSE );

    min_team = t_def[0].start;

    max_team = t_def[num_teams - 1].end;

    /*

     * Class information

     */

//qDebug( "Reading: Class Data" );

    fsize = sizeof( team_class  );

    len = configFile.read( (char *)team_class, fsize );

    if( len != fsize )

        return ( FALSE );

    fsize = sizeof( num_class  );

    len = configFile.read( (char *)&num_class, fsize);

    if( len != fsize )

        return ( FALSE );

    /*

     * Country list

     */

//qDebug( "Reading: Country Data, Name" );

    fsize = sizeof( country_name  );

    len = configFile.read( (char *)country_name, fsize );

    if( len != fsize )

        return ( FALSE );

//qDebug( "Reading: Country Data, Number" );

    fsize = sizeof( num_countries  );

    len = configFile.read( (char *)&num_countries, fsize );

    if( len != fsize )

        return ( FALSE );

    /*

     * Addendum file

     */

//qDebug( "Reading: Addendum File" );

    fsize = sizeof( addendum );

    len = configFile.read( addendum, fsize );

    if( len != fsize )

        return ( configFile.atEnd() );

    /*

     * Name of the data file

     */

//qDebug( "Reading: Name of data file" );

    fsize = sizeof( datafilename );

    len = configFile.read( datafilename, fsize );

    if( len != fsize )

        return ( configFile.atEnd() );

    /*

     **  Non-equestrian configuration information

     */

//qDebug( "Reading: NonEquest" );

    fsize = sizeof( nonequestrian_class_abr );

    len = configFile.read( nonequestrian_class_abr, fsize );

    if( len != fsize )

        return ( configFile.atEnd() );

//qDebug( "Reading: NonEquest-2" );

    fsize = sizeof( equestrian_leg );

    len = configFile.read( (char *)&equestrian_leg, fsize );

    if( len != fsize )

        return ( FALSE );

    /*

    **  .txt file output control. Lines per page and perf-skipping

    */

//qDebug( "Reading: Output Control" );

    fsize = sizeof( lines_per_page );

    len = configFile.read( (char *)&lines_per_page, fsize );

    if( len != fsize )

        return ( configFile.atEnd() );

//qDebug( "Reading: Output Control-2" );

    fsize = sizeof( perf_skip );

    len = configFile.read( (char *)&perf_skip, fsize );

    if( len != fsize )

        return ( FALSE );

//qDebug( "Reading: Winners Info" );

    fsize = sizeof( class_winners );

    len = configFile.read( (char *)&class_winners, fsize );

    if( len != fsize )

        return ( FALSE );

//qDebug( "Reading: Hall of Fame Info" );

    fsize = sizeof( hall_fame );

    len = configFile.read( (char *)&hall_fame, fsize );

    if( len != fsize )

        return ( FALSE );

//qDebug( "Reading: Hall of Fame Numbers" );

    fsize = sizeof( num_fame );

    len = configFile.read( (char *)&num_fame, fsize );

    if( len != fsize )

        return ( configFile.atEnd() );

    return ( TRUE );

}

/*----------------------------------------------------------------------------

** FUNCTION           : getAddendemFile

**

** DESCRIPTION        : Returns the full path the the addemdum file

**                      The functionwill lookfor the file in a number of

**                      locations

**

**

** INPUTS             : name    - Name of the addenum file

**                      create  - True. Allow file to be created

**

** RETURNS            : NULL    - No addendum name, or file not found

**                                If create' is true then the preferred

**                                location will be returned.

**

----------------------------------------------------------------------------*/

const char *QmConfig::getAddendemFile(const QString &name, bool create )

{

    if (name.isEmpty())

        return NULL;

    QFile file;

    QString addendumFileName;

    addendumFileName = filepath;

    addendumFileName.append(name);

    QString addendumFileNamePreferred(addendumFileName);

    file.setFileName(addendumFileName);

    //qDebug("Try:%s", qPrintable(addendumFileName));

    if ( !file.exists())

    {

        addendumFileName = QCoreApplication::applicationDirPath ();

        addendumFileName.append("/");

        addendumFileName.append(name);

        file.setFileName(addendumFileName);

        //qDebug("Try:%s", qPrintable(addendumFileName));

        if ( !file.exists())

        {

             addendumFileName = QDir::currentPath ();

             addendumFileName.append("/");

             addendumFileName.append(name);

             file.setFileName(addendumFileName);

             //qDebug("Try:%s", qPrintable(addendumFileName));

             if ( !file.exists())

             {

                 //qDebug("Addeddum File not found");

                 if (create)

                 {

                     addendumFileName = addendumFileNamePreferred;

                 }

                 else

                 {

                     return NULL;

                 }

             }

        }

    }

    strncpy(addendumFilepath, qPrintable(addendumFileName), sizeof(addendumFilepath));

    return addendumFilepath;

}

/*========================================================================

 *

 *  Write out the configuration file

 *

 *  Purpose:

 *      This function is called to write the configuration file

 *      NOTE: Must be maintained with the Reader function

 *

 *  Parameters:

 *      None

 *

 *  Returns:

 *      FALSE   : Error encountered

 *

 *========================================================================*/

bool QmConfig::write_config( void )

{

    if (fileName.isEmpty())

    {

        qDebug("No Config file selected");

        return(false);

    }

    /*

     **  Open as a binary file

     */

    QFile file;

    file.setFileName(fileName);

    if ( ! file.open(QIODevice::WriteOnly | QIODevice::Truncate) )

    {

        qDebug("File error: %s", qPrintable(file.errorString()));

        MainWindow::showMessage("Cannot open config file");

        return (false);

    }

     /*

     **  Write out multiple structures

     **     Event name

     **     Leg names

     **     Team definitions

     **     Number of legs

     **     Number fo team splits

     **     Class information

     **     Number of defined classes

     **     Country list

     **     Number of defined countries

     **     Legend addendum file name

     **     Data file name

     */

    file.write( (const char *) event_name, sizeof( event_name ) );

    file.write( (const char *) leg_name, sizeof( leg_name ) );

    file.write( (const char *) t_def, sizeof( t_def ) );

    file.write( (const char *) &num_legs, sizeof( num_legs ) );

    file.write( (const char *) &num_teams, sizeof( num_teams ) );

    file.write( (const char *) team_class, sizeof( team_class ) );

    file.write( (const char *) &num_class, sizeof( num_class ) );

    file.write( (const char *) country_name, sizeof( country_name ) );

    file.write( (const char *) &num_countries, sizeof( num_countries ) );

    file.write( (const char *) addendum, sizeof( addendum ) );

    file.write( (const char *) datafilename, sizeof( datafilename ) );

    file.write( (const char *) nonequestrian_class_abr, sizeof( nonequestrian_class_abr ) );

    file.write( (const char *) &equestrian_leg, sizeof( equestrian_leg ) );

    file.write( (const char *) &lines_per_page, sizeof( lines_per_page ) );

    file.write( (const char *) &perf_skip, sizeof( perf_skip ) );

    file.write( (const char *) &class_winners, sizeof( class_winners ) );

    file.write( (const char *) &hall_fame, sizeof( hall_fame ) );

    file.write( (const char *) &num_fame, sizeof( num_fame ) );

    file.close();

    return ( TRUE );

}

/*========================================================================

 *

 *  Qsort callback: Sort by team

 *

 *  Purpose:

 *      Function used by the team definition sort operation

 *      It will compare two entries of the team def structure and return an

 *      integer for gt eq lt conditions.

 *      Note : If the start is 0 the team entry does exist and is placed at the

 *      end of the sorted list.

 *

 *  Parameters:

 *      a           comparision entry

 *      b           comparision entry

 *

 *  Returns:

 *      gt, eq, lt as required

 *

 *========================================================================*/

int f_comp_int( const void *aa, const void *bb )

{

    const ty_t_def *a = (ty_t_def *)aa;

    const ty_t_def *b = (ty_t_def *)bb;

    if( a->start == 0 )

        return ( 1 );

    else if( b->start == 0 )

        return ( -1 );

    else

        return ( a->start - b->start );

}

/*========================================================================

 *

 *  Compact a string

 *

 *  Purpose:

 *      This function is called remove leading and trailing spaces from

 *      a string. Treats other non-printing characters as leading

 *      spaces. This solves a problem when importing data from a

 *      Microsoft CSV file with empty fields.

 *

 *  Parameters:

 *      str     Address of the string to compact

 *

 *  Returns:

 *      Nothing

 *

 *========================================================================*/

void compact( char *str )

{

    char       *ptr;

    ptr = str;

    while( *str && ( isspace( *str ) || !isprint( *str ) ) )

        str++;

    strcpy( ptr, str );

}

/*========================================================================

 *

 *  Validate a team number

 *

 *  Purpose:

 *      This function is called to validate a team number

 *

 *  Parameters:

 *      x       Number to validate

 *

 *  Returns:

 *      TRUE    : Valid

 *      FALSE   : Not valid

 *

 *========================================================================*/

bool valid_field( int x )

{

    int         i;

    for( i = 0; i < config.num_teams; i++ )

    {

        if( x <= config.t_def[i].end && x >= config.t_def[i].start )

            return ( TRUE );

        if( x < config.t_def[i].start )

            break;                               /* Because the list is sorted */

    }

    return ( FALSE );

}

/*========================================================================

 *

 *  Get a class descriptor from existing text

 *

 *  Purpose:

 *      This function is called to Get a class descriptor

 *

 *  Parameters:

 *      text    - User text to examine

 *      config  - configuration dtaa to use

 *

 *  Returns:

 *      An integer which is the index into the  config.team_class array

 *      The integer is in the range 1 .. num_class

 *      A value fo zero indicates the text was not found.

 *

 *========================================================================*/

int QmConfig::lookup_class( const char *text )

{

    int         i;

//    if( config_ptr == NULL )

//        config_ptr = &config;

    /*

     * Attempt to locate the entered class in the list of defined classes

     */

    for( i = 0; i < num_class; i++ )

    {

        if( toupper(text[0]) == toupper(team_class[i].abr[0]) &&

            toupper(text[1]) == toupper(team_class[i].abr[1]) )

            return ( ++i );

    }

    return ( 0 );

}

#ifdef DISPLAY_STRUCTURES

/*============================================================================

**

**  Display structure information

**

**  Purpose:    Display internal structure information

**

**  Parameters: Nothing

**

**  Returns:    Nothing directly

**

**===========================================================================*/

/*

**  esize - A macro to return the size of a structure element

**  element - print element information

*/

#define esize( st, el) ( sizeof(((st *)0)->el))

#define element( st, el) \

    printf( "Offset of %-15s :%4d, Size:%d", #el, offsetof( st, el), esize(st, el) );

#define element2( st, el) \

    printf( "Size of %-15s :%4d", #el, esize(st, el) );

void display_structures(void)

{

    printf( "Structure: leg_type" );

    element( leg_type, start    );

    element( leg_type, end      );

    element( leg_type, elapsed  );

    element( leg_type, l_place  );

    element( leg_type, le_place );

    element( leg_type, lc_place );

    element( leg_type, lec_place);

    element( leg_type, manual   );

    printf( "Sizeof %-18s :%4d", "leg_type", sizeof(leg_type) );

    printf( "" );

    printf( "Structure: team_type" );

    element( team_type, numb   );

    element( team_type, name   );

    element( team_type, leg    );

    element( team_type, members);

    element( team_type, teamclass  );

    element( team_type, country);

    element( team_type, flags  );

    printf( "Sizeof %-18s :%4d", "team_type", sizeof(team_type) );

#if 1

    printf( "" );

    printf( "Structure: MARA_CFG" );

    element2( QmConfig, event_name      );

    element2( QmConfig, leg_name        );

    element2( QmConfig, t_def           );

    element2( QmConfig, num_legs        );

    element2( QmConfig, num_teams       );

    element2( QmConfig, max_team        );

    element2( QmConfig, min_team        );

    element2( QmConfig, team_class      );

    element2( QmConfig, num_class       );

    element2( QmConfig, country_name    );

    element2( QmConfig, num_countries   );

    element2( QmConfig, addendum        );

    element2( QmConfig, datafilename    );

    printf( "Sizeof %-18s :%4d", "QmConfig", sizeof(QmConfig) );

#endif

}

#endif