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#include "qmconfclass.h"

#include "qmconfig.h"

#include <QtCore/QVariant>

#include <QAction>

#include <QApplication>

#include <QButtonGroup>

#include <QGroupBox>

#include <QHeaderView>

#include <QPushButton>

#include <QTableWidget>

#include <QVBoxLayout>

#include <QWidget>

#include    "consts.h"

#include    "structs.h"

#include    "proto.h"

#include "mainwindow.h"

#include "qmTableWidgetItem.h"

#include <QDialogButtonBox>

#include "QTableWidgetItem"

#include "spinboxdelegate.h"

#include "timedelegate.h"

#include "textdelegate.h"

#include <QMenu>

#define COL_ABR 0

#define COL_CLASS 1

#define COL_TIME 2

#define COL_WINNERS 3

#define COL_NE 4

#define COL_NE_WINNERS 5

#define COL_ST_TOTAL 6

#define COL_ST_VALID 7

#define COL_ST_DISQ 8

#define COL_ST_NONEQ 9

#define COL_ST_VET 10

#define COL_ST_CEV 11

#define COL_ST_CNE 12

#define COL_INDEX 13

#define COL_COUNT 14

QmConfClass::QmConfClass(QWidget *parent) :

    QWidget(parent)

{

    populating = false;

    dirty = false;

    QVBoxLayout *verticalLayout = new QVBoxLayout(this);

    verticalLayout->setContentsMargins(0, 0, 0, 0);

    QGroupBox *groupBox = new QGroupBox("Class");

    verticalLayout->addWidget(groupBox);

    QVBoxLayout *verticalLayout2 = new QVBoxLayout(groupBox);

    tableWidget = new QTableWidget(groupBox);

    tableWidget->setAlternatingRowColors(true);

    tableWidget->setRowCount(config.num_class + 1);

    tableWidget->setColumnCount(COL_COUNT);

    tableWidget->setContextMenuPolicy(Qt::CustomContextMenu);

    tableWidget->horizontalHeader()->setVisible(true);

    tableWidget->horizontalHeader()->setDefaultSectionSize(70);

    tableWidget->horizontalHeader()->setHighlightSections(true);

    //tableWidget->horizontalHeader()->setStretchLastSection(true);

    tableWidget->verticalHeader()->setVisible(true);

    tableWidget->verticalHeader()->setDefaultSectionSize(20);

    //tableWidget->setSizePolicy(QSizePolicy::MinimumExpanding,QSizePolicy::MinimumExpanding );

    //tableWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);

    verticalLayout2->addWidget(tableWidget);

    //QSpacerItem *verticalSpacer1;

    //verticalSpacer1 = new QSpacerItem(0, 10, QSizePolicy::Expanding, QSizePolicy::Expanding);

    //verticalLayout2->addItem(verticalSpacer1);

    QHBoxLayout *horizontalLayout;

    horizontalLayout = new QHBoxLayout();

    horizontalLayout->setContentsMargins(0, 0, 5, 5);

    verticalLayout->addLayout(horizontalLayout);

    QDialogButtonBox *buttonBox = new QDialogButtonBox();

    pushButtonRestore = buttonBox->addButton("Restore",QDialogButtonBox::ActionRole );

    pushButtonSave = buttonBox->addButton("Save",QDialogButtonBox::ActionRole );

    horizontalLayout->addWidget(buttonBox);

    connect(pushButtonSave, SIGNAL(clicked(bool)), this, SLOT(save()) );

    connect(pushButtonRestore, SIGNAL(clicked(bool)), this, SLOT(cancel()) );

    QStringList labels;

    labels << "Abr" << "Full Name" << "Start Time" << "Winners" << "NE" << "NE Winners";

    labels << "Total" << "Valid" <<"Disqual" << "NonEq" << "VetCheck" << "Comp Ev" << " Comp NE";

    labels << "Index";

    tableWidget->setHorizontalHeaderLabels(labels);

    connect(tableWidget, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(ctxMenu(const QPoint &)));

    connect(tableWidget, SIGNAL(cellChanged(int,int)), this, SLOT(cellChanged(int,int)));

    /*

    **  Setup delegated for specialised editing

    */

    tableWidget->setItemDelegateForColumn(COL_ABR, new textDelegate(2));

    tableWidget->setItemDelegateForColumn(COL_CLASS, new textDelegate(LEN_CLASS_NAME));

    tableWidget->setItemDelegateForColumn(COL_TIME, new timeDelegate());

    tableWidget->setItemDelegateForColumn(COL_WINNERS, new SpinBoxDelegate(0,50));

    tableWidget->setItemDelegateForColumn(COL_NE_WINNERS, new SpinBoxDelegate(0,50));

}

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

** FUNCTION           : showEvent 

**

** DESCRIPTION        : Called when the page is shown

**                      Used to refresh the contents of the display as well

**                      as show them for the first time

**

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

void QmConfClass::showEvent ( QShowEvent * event )

{

    //qDebug("populate::showEvent");

    if ( ! event->spontaneous() && !dirty )

    {

        populate();

    }

}

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

** FUNCTION           : populate

**

** DESCRIPTION        : Populate the display with information

**

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

void QmConfClass::populate(void)

{

    bool    reportDataLoaded = false;

    t_class_summary data;

    populating = true;

    tableWidget->clearContents();

    tableWidget->setRowCount(0);

    tableWidget->setSortingEnabled(false);

    /*

    ** Load Report Data if we can

    */

    if( load_report_data() )

    {

        calc_class_summary( & data );

        reportDataLoaded = true;

    }

    /*

    **  Add all the information

    */

    int ii = 0;

    int entryIndex = 0;

    for ( ii = 0; ii < MAX_CLASS; ii++)

    {

        if ( config.team_class[ii].abr[0] )

        {

            // Keep the config item index entry

            //  Will need it when we write stiff out

            tableWidget->setRowCount(tableWidget->rowCount() + 1);

            tableWidget->setItem(entryIndex, COL_INDEX, new qmTwiNumber(ii));

            tableWidget->setItem(entryIndex, COL_ABR,        new qmTwiEditString(config.team_class[ii].abr ));

            tableWidget->setItem(entryIndex, COL_CLASS,      new qmTwiEditString(config.team_class[ii].full_name ));

            QTableWidgetItem *item;

            item = new QTableWidgetItem();

            item->setData(Qt::EditRole,QTime(0,0).addSecs(config.team_class[ii].start) );

            tableWidget->setItem(entryIndex, COL_TIME, item);

            tableWidget->setItem(entryIndex, COL_WINNERS,    new qmTwiEditNumber(config.class_winners[ii]));

            tableWidget->setItem(entryIndex, COL_NE,         new qmTwiEditFlag("",config.nonequestrian_class == 1 + ii));

            tableWidget->setItem(entryIndex, COL_NE_WINNERS, new qmTwiEditNumber(config.class_ne_winners[ii]));

            if (reportDataLoaded)

            {

                tableWidget->setItem(entryIndex,COL_ST_TOTAL, new qmTwiNumber(data.teamclass[ii+1].total) );

                tableWidget->setItem(entryIndex,COL_ST_VALID, new qmTwiNumber(data.teamclass[ii+1].valid) );

                tableWidget->setItem(entryIndex,COL_ST_DISQ,  new qmTwiNumber(data.teamclass[ii+1].disqualified));

                tableWidget->setItem(entryIndex,COL_ST_NONEQ, new qmTwiNumber(data.teamclass[ii+1].non_equestrian));

                tableWidget->setItem(entryIndex,COL_ST_VET,   new qmTwiNumber(data.teamclass[ii+1].vet_check));

                tableWidget->setItem(entryIndex,COL_ST_CEV,   new qmTwiNumber(data.teamclass[ii+1].valid_ev));

                tableWidget->setItem(entryIndex,COL_ST_CNE,   new qmTwiNumber(data.teamclass[ii+1].valid_ne));

            }

            entryIndex++;

        }

    }

    //  Insert Totals

    //      Flag that items on this this row is not to be sorted - or at least 

    //      sorted at the end

    //

    if (reportDataLoaded)

    {

        tableWidget->setRowCount(tableWidget->rowCount() + 1);

        tableWidget->setItem(entryIndex,COL_ABR,      new qmTwiString("Totals", 1));

        tableWidget->setItem(entryIndex, COL_CLASS,         new qmTwiString("",1));

        tableWidget->setItem(entryIndex, COL_TIME,          new qmTwiString("",1));

        tableWidget->setItem(entryIndex, COL_WINNERS,       new qmTwiString("",1));

        tableWidget->setItem(entryIndex, COL_NE,            new qmTwiString("",1));

        tableWidget->setItem(entryIndex, COL_NE_WINNERS,    new qmTwiString("",1));

        tableWidget->setItem(entryIndex, COL_INDEX,         new qmTwiString("",1));

        tableWidget->setItem(entryIndex,COL_ST_TOTAL, new qmTwiNumber(data.total.total, 1));

        tableWidget->setItem(entryIndex,COL_ST_VALID, new qmTwiNumber(data.total.valid, 1));

        tableWidget->setItem(entryIndex,COL_ST_DISQ,  new qmTwiNumber(data.total.disqualified, 1));

        tableWidget->setItem(entryIndex,COL_ST_NONEQ, new qmTwiNumber(data.total.non_equestrian, 1));

        tableWidget->setItem(entryIndex,COL_ST_VET,   new qmTwiNumber(data.total.vet_check, 1));

        tableWidget->setItem(entryIndex,COL_ST_CEV,   new qmTwiNumber(data.total.valid_ev, 1));

        tableWidget->setItem(entryIndex,COL_ST_CNE,   new qmTwiNumber(data.total.valid_ne, 1));

        // Debug

        // tableWidget->setItem(entryIndex, COL_INDEX, new qmTwiNumber(5,2));

    }

    checkNeClass();

    tableWidget->sortByColumn ( COL_INDEX, Qt::AscendingOrder );

    tableWidget->setSortingEnabled(true);

    tableWidget->resizeColumnsToContents();

    tableWidget->resizeRowsToContents();

    updateChanged(false);

    populating = false;

}

void QmConfClass::checkNeClass(void)

{

    QString tip = "Unexpected value. The NE winners are configured on a per-class basis";

    for ( int ii = 0; ii < MAX_CLASS; ii++)

    {

        int indexEntry = 0;

        QTableWidgetItem *item = tableWidget->item ( ii, COL_INDEX );

        const QBrush *goldBrush = new QBrush(QColor(255,204,203));

        if (!item)

        {

            //qDebug("Ignore row:%d", entryIndex);

            continue;

        }

        if ( item->text().length() == 0)

        {

            //qDebug("Ignore empty row:%d", entryIndex);

            continue;

        }

        indexEntry = item->text().toInt();

        //qDebug("Processing: %d", ii);

        item = tableWidget->item( ii, COL_NE );

        if ( item )

        {

            if ( item->checkState() == Qt::Checked) {

                item = tableWidget->item( ii, COL_WINNERS );

                if (item && item->text().length() && item->text().toInt() ) {

                    tableWidget->item(ii,COL_WINNERS)->setBackground(*goldBrush);

                    tableWidget->item(ii,COL_WINNERS)->setToolTip(tip);

                    MainWindow::showMessage(tip);

                } else {

                    tableWidget->item(ii,COL_WINNERS)->setBackground(Qt::transparent);

                    tableWidget->item(ii,COL_WINNERS)->setToolTip("");

                }

                item = tableWidget->item( ii, COL_NE_WINNERS );

                if (item && item->text().length() && item->text().toInt() ) {

                    tableWidget->item(ii,COL_NE_WINNERS)->setBackground(*goldBrush);

                    tableWidget->item(ii,COL_NE_WINNERS)->setToolTip(tip);

                    MainWindow::showMessage(tip);

                } else {

                    tableWidget->item(ii,COL_NE_WINNERS)->setBackground(Qt::transparent);

                    tableWidget->item(ii,COL_NE_WINNERS)->setToolTip("");

                }

            } else {

                tableWidget->item(ii,COL_WINNERS)->setBackground(Qt::transparent);

                tableWidget->item(ii,COL_WINNERS)->setToolTip("");

                tableWidget->item(ii,COL_NE_WINNERS)->setBackground(Qt::transparent);

                tableWidget->item(ii,COL_NE_WINNERS)->setToolTip("");

            }

        }

    }

}

void QmConfClass::save(void)

{

    /*

    **    Copy original data

    */

    QmConfig newcfg(config);

    /*

    **  Extract the data from the Widgets

    **  Trap: The Class info is cross ref by index into the table

    **        Thus we need to maintain the order in the config.

    */

    for (int entryIndex = 0; entryIndex < tableWidget->rowCount(); entryIndex++)

    {

        // Check that this is a real Entry or the 'Totals' header

        //      Real rows have a COL_INDEX entry that is not empty

        //

        QTableWidgetItem *item = tableWidget->item ( entryIndex, COL_INDEX );

        if (! item)

        {

            //qDebug("Ignore row:%d", entryIndex);

            continue;

        }

        if ( item->text().length() == 0)

        {

            //qDebug("Ignore empty row:%d", entryIndex);

            continue;

        }

        int ii = item->text().toInt();

        //qDebug("Processing: %d", ii);

        /*

        ** This is a new entry - allocate a new index 

        **  Scan the entire available space looking for the first empty slot

        */

        if (ii < 0)

        {

            for (ii = 0; ii < MAX_CLASS ; ii++)

            {

                if (newcfg.team_class[ii].abr[0] == 0)

                {

                    break;

                }

            }

        }

        if (ii >= MAX_CLASS )

        {

            qDebug("Ignore row:%d. Class out of range", entryIndex);

            continue;

        }

        item = tableWidget->item ( entryIndex, COL_ABR );

        if ( item )

        {

            strncpy(newcfg.team_class[ii].abr, qPrintable(item->text()), sizeof(newcfg.team_class[ii].abr)-1);

        }

        else

        {

            *newcfg.team_class[ii].abr = 0;

        }

        item = tableWidget->item ( entryIndex, COL_CLASS );

        if ( item )

        {

            strncpy(newcfg.team_class[ii].full_name, qPrintable(item->text()), sizeof(newcfg.team_class[ii].full_name)-1);

        }

        else

        {

            *newcfg.team_class[ii].full_name = 0;

        }

        item = tableWidget->item( entryIndex, COL_TIME );

        if ( item )

        {

            QVariant data = item->data(Qt::EditRole);

            if (data.isValid())

            {

                newcfg.team_class[ii].start = QTime(0,0,0).secsTo(item->data(Qt::EditRole).toTime());

            }

            else

            {

                newcfg.team_class[ii].start = -1;

            }

        }

        else

        {

            newcfg.team_class[ii].start = -1;

        }

        item = tableWidget->item( entryIndex, COL_WINNERS );

        if ( item )

        {

            newcfg.class_winners[ii] = item->data(Qt::EditRole).toInt();

        }

        else

        {

            newcfg.class_winners[ii] = 0;

        }

        item = tableWidget->item( entryIndex, COL_NE );

        if ( item )

        {

            if ( item->checkState() == Qt::Checked)

            {

                newcfg.nonequestrian_class = ii;

                strncpy(newcfg.nonequestrian_class_abr, newcfg.team_class[ii].abr, sizeof(newcfg.team_class[ii].abr)-1);

            }

        }

        item = tableWidget->item( entryIndex, COL_NE_WINNERS );

        if ( item )

        {

            newcfg.class_ne_winners[ii] = item->data(Qt::EditRole).toInt();

        }

        else

        {

            newcfg.class_ne_winners[ii] = 0;

        }

    }

    // Validate the data

    try

    {

        MainWindow::showMessage( "Saving Config");

        /*

         **  Now do the Class definitions

         */

        for( int i = 0; i < MAX_CLASS; i++ )

        {

            compact( newcfg.team_class[i].abr );

            compact( newcfg.team_class[i].full_name );

        }

        for( int i = 0; i < MAX_CLASS; i++ )

        {

            if( ( newcfg.team_class[i].abr[0] == '\0' ) != ( newcfg.team_class[i].full_name[0] == '\0' ) )

            {

                throw( "Configuration error. Class without description" );

            }

            if( newcfg.team_class[i].abr[0] != '\0' && newcfg.team_class[i].start < 0L )

            {

                throw( "Configuration error. Bad start time on class" );

            }

        }

        //  Calculate new max number of classes

        //      Scan from the end looking for the last one used

        //

        for (int i = MAX_CLASS-1; i >= 0; i--)

        {

            if (newcfg.team_class[i].abr[0])

            {

                //qDebug("num_class:%d -> %d", newcfg.num_class, 1+i);

                newcfg.num_class = 1 + i;

                break;

            }

        }

        for( int i = newcfg.num_class; i < MAX_CLASS; i++ )

            if( newcfg.team_class[i].full_name[0] )

            {

                qDebug( "Configuration error: Missing Class name. Gaps not allowed" );

            }

        if( newcfg.num_class == 0 )

        {

            throw( "Error: No categories defined" );

        }

        /*

        ** Test for duplicate abbreviations 

        ** I know its a slow agorithm, but its only a small set 

        */

        for( int i = 0; i < MAX_CLASS; i++ )

        {

            if (newcfg.team_class[i].abr[0] != '\0')

            {

                for (int j = i+1; j < MAX_CLASS; j++)

                {

                    if (newcfg.team_class[j].abr[0] != '\0')

                    {

                        if (    newcfg.team_class[i].abr[0] == newcfg.team_class[j].abr[0]

                             && newcfg.team_class[i].abr[1] == newcfg.team_class[j].abr[1]

                            )

                        {

                            qDebug("Duplicate abr: %s", newcfg.team_class[i].abr);

                            throw( "Error: Duplicate abbreviations detected");

                        }

                    }

                }

            }

        }

        /*

        ** Sanity Test

        */

        newcfg.nonequestrian_class = newcfg.lookup_class( newcfg.nonequestrian_class_abr );

        if( newcfg.equestrian_leg && newcfg.nonequestrian_class == 0 )

            MainWindow::showMessage( "WARNING: Non-equestrian class not found" );

        //qDebug("NE Index is: %d", newcfg.nonequestrian_class );

        /*

        **  Sanity test of the data

        */

        for( int i = 0; i < MAX_CLASS; i++ )

        {

            if( newcfg.team_class[i].abr[0] != '\0' && newcfg.class_winners[i] == 0 )

            {

                if (newcfg.nonequestrian_class != i+1)

                {

                    MainWindow::showMessage(QString("Warning: Class without winners:")+ newcfg.team_class[i].abr); 

                }

            }

        }

        /*

        ** Cannot mix winners for NE class and NE Winners for each class

        */

        if (newcfg.nonequestrian_class)

        {

            newcfg.class_ne_winners_by_class = false;

            for( int i = 0; i < MAX_CLASS; i++ )

            {

                if ( newcfg.class_ne_winners[i])

                {

                    newcfg.class_ne_winners_by_class = true;

                    break;

                }

            }

            if (newcfg.class_winners[newcfg.nonequestrian_class - 1] && newcfg.class_ne_winners_by_class )

            {

                MainWindow::showMessage( QString("Should not mix NE winners by each class and by NE Class"));

                //throw( "Error: Cannot mix NE winners by each class and by NE Class" );

            }

        }

        config = newcfg;

        config.write_config();

        updateChanged(false);

        // Force re-populate so that the index field is now correct

        populate();

    }

    catch (const char * str )

    {

        MainWindow::showMessage(str);

    }

}

void QmConfClass::cancel(void)

{

    populate();

}

QmConfClass::~QmConfClass()

{

}

void QmConfClass::ctxMenu(const QPoint & pos)

{

    //qDebug("Context Menu");

    QMenu *menu = new QMenu;

    menu->addAction(tr("New Category"), this, SLOT(ctxMenuAddRow()));

    /*

    **      Determine if we can delete an item

    **          Can delete a category we added in this session

    **          Can delete one if it has no teams using it.

    */

    QTableWidgetItem *item = tableWidget->itemAt(pos);

    if (item)

    {

        int row = item->row();

        //qDebug("Item is at row:%d", row);

        QTableWidgetItem *indexItem = tableWidget->item ( row, COL_INDEX );

        if (indexItem)

        {

            int index = indexItem->text().toInt();

            //qDebug("Item is at row:%d, Index: %d", row, index);

            if (index < 0)

            {

                menu->addAction(tr("Delete Newly added Category"), this, SLOT(ctxMenuDeleteRow())); 

            }

            else

            {

                QTableWidgetItem *itemTotalCount = tableWidget->item ( row, COL_ST_TOTAL );

                if (itemTotalCount)

                {

                    int count = itemTotalCount->text().toInt();

                    if (count == 0)

                    {

                        menu->addAction(tr("Delete Category - its not used"), this, SLOT(ctxMenuDeleteRow()));  

                    }

                }

            }

        }

    }

    menu->exec(tableWidget->mapToGlobal(pos));

}

void QmConfClass::ctxMenuDeleteRow(void)

{

    //

    //  Assume that if the menu was shown, then we can delete it

    // 

    //qDebug ("DELETE ROW: %d", tableWidget->currentRow () );

    //tableWidget->removeCellWidget(tableWidget->currentRow (), COL_ABR);

    //tableWidget->removeRow(tableWidget->currentRow ());

    tableWidget->item(tableWidget->currentRow (), COL_ABR)->setText("");

    tableWidget->item(tableWidget->currentRow (), COL_CLASS)->setText("");

    tableWidget->hideRow(tableWidget->currentRow ());

    updateChanged(true);

}

void QmConfClass::ctxMenuAddRow(void)

{

    tableWidget->setSortingEnabled(false);

    tableWidget->setRowCount( 1+ tableWidget->rowCount());

    /*

    **  Insert non-editable fields in the status part of the table

    */

    tableWidget->setItem(tableWidget->rowCount() - 1, COL_INDEX, new qmTwiNumber(-1));

    for (int ii= COL_ST_TOTAL; ii < COL_INDEX; ii++)

    {

        tableWidget->setItem(tableWidget->rowCount() - 1, ii, new qmTwiString(""));

    }

}

void QmConfClass::cellChanged(int row,int col)

{

    if ( populating )

        return;

    if (col == COL_INDEX)

        return;

    updateChanged(true); 

    populating = true;

    //qDebug("Cell changed: %d, %d", row, col);

    if (col == COL_NE)

    {

        for (int ii = 0; ii < tableWidget->rowCount(); ii++)

        {

            QTableWidgetItem *item = tableWidget->item(ii, COL_NE);

            if (item)

            {

                item->setCheckState(ii == row ? Qt::Checked : Qt::Unchecked);

            }

        }

    }

    // Highlight wonky config

    if (col == COL_NE || col == COL_NE_WINNERS || col == COL_WINNERS) {

        checkNeClass();

    }

    populating = false;

}

void QmConfClass::updateChanged(bool newDirty)

{

    if (newDirty != dirty)

    {

        dirty = newDirty;

        if (dirty)

        {

            pushButtonSave->setEnabled(true);

            pushButtonSave->setStyleSheet("background-color: rgb(255, 0, 0);");

        }

        else

        {

            pushButtonSave->setEnabled(false);

            pushButtonSave->setStyleSheet("");

        }

    }

}

void QmConfClass::changeEvent(QEvent *e)

{

    QWidget::changeEvent(e);

    switch (e->type()) {

    default:

        break;

    }

}