/****************************************************************************

 Copyright (C) 2010-2012 the Office National des Forêts (ONF), France
                     and the Association de Recherche Technologie et Sciences (ARTS), Ecole Nationale Suprieure d'Arts et Métiers (ENSAM), Cluny, France.
                     All rights reserved.

 Contact : alexandre.piboule@onf.fr

 Developers : Alexandre PIBOULE (ONF)

 This file is part of PluginShared library 2.0.

 PluginShared is free library: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 PluginShared 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 Lesser General Public License
 along with PluginShared.  If not, see <http://www.gnu.org/licenses/lgpl.html>.

*****************************************************************************/

#ifndef CT_TEXTFILECONFIGURATIONDIALOG_H
#define CT_TEXTFILECONFIGURATIONDIALOG_H

#include "qmap.h"
#include "qlabel.h"
#include "qcombobox.h"
#include "qgridlayout.h"
#include "qfile.h"
#include "qtextstream.h"
#include "qfileinfo.h"

#include <QDialog>
#include "pluginShared_global.h"
#include "interfaces.h"

namespace Ui {
class CT_TextFileConfigurationDialog;
}

struct CT_TextFileConfigurationFields
{
    CT_TextFileConfigurationFields(QString nOf, QRegExp regEx, bool chooseNoData) : m_nameOfField(nOf), m_fieldInFileChooser(regEx), m_chooseNoDataIfNotMatch(chooseNoData) {}
    CT_TextFileConfigurationFields(QString nOf, QRegExp regEx) : m_nameOfField(nOf), m_fieldInFileChooser(regEx), m_chooseNoDataIfNotMatch(true) {}
    CT_TextFileConfigurationFields(QString nOf) : m_nameOfField(nOf), m_fieldInFileChooser(QRegExp()), m_chooseNoDataIfNotMatch(true) {}

    /**
     * @brief The name of the field
     */
    QString         m_nameOfField;

    /**
     * @brief A regular expression to extract a possible pre-defined fields
     */
    QRegExp         m_fieldInFileChooser;

    /**
     * @brief At true if we must choose for this fields the value NODATA if regular expression not match
     */
    bool            m_chooseNoDataIfNotMatch;

    bool operator ==(const CT_TextFileConfigurationFields &other) { return other.m_nameOfField == m_nameOfField; }
};

class PLUGINSHAREDSHARED_EXPORT CT_TextFileConfigurationDialog : public QDialog
{
    Q_OBJECT
    
public:

    explicit CT_TextFileConfigurationDialog(QStringList neededFields, QWidget *parent = 0, QString fileName="", bool autoDetect = true);
    CT_TextFileConfigurationDialog(QList<CT_TextFileConfigurationFields> neededFields, QWidget *parent = 0, QString fileName="", bool autoDetect = true);
    ~CT_TextFileConfigurationDialog();

    void init();

    inline QStringList getHeadersNames() {return _headersNames;}
    inline int getFieldNumber() {return _headers.size();}
    inline QString getFileNameWithPath() {return _filename;}
    inline QString getFileNameWithoutPath() {return QFileInfo(_filename).fileName();}
    inline QString getSeparator() {return _separator;}
    int getNlinesToSkip();
    bool hasHeader();
    QString getQLocaleName();

    inline int getColumnForField(QString neededField) {return _neededFieldsColumns.value(neededField);}
    inline QMap<QString, int> getNeededFieldColumns() {return _neededFieldsColumns;}

    QMap<QString, int> setFieldColumnsSelectedFromString(QString mapAsString);
    QString getFieldColumnsSelectedAsString(const QMap<QString, int> &map);

    void setFilePathCanBeModified(bool enable);
    void setFileNameWithPath(const QString &path);
    void setNLinesToSkip(const int &n);
    void setFieldColumnsSelected(const QMap<QString, int> &map);
    void setSeparator(const QString &separator);
    void setFileExtensionAccepted(const QList<FileFormat> &extensions);
    void setHeader(bool header);
    void setQLocale(QString locale);    
    void setDecimal(QString decimal);

public slots:
    void extractFieldsNames();

private slots:

    void clearFieldCombos();
    void fileChoose_clicked();
    void separator_currentIndexChanged(int index);
    void nbLines_valueChanged(int arg1);
    void buttonBox_accepted();

    void cb_showCols_clicked();

    void sb_tabSize_valueChanged(int arg1);

    void skipLines_valueChanged(int arg1);

    void cb_noheader_clicked();

    void pb_detect_clicked();

private:
    Ui::CT_TextFileConfigurationDialog      *ui;
    QGridLayout*                            _layout;
    QMap<QLabel*, QComboBox*>               _combos;

    QString                                 _filename;
    QFile*                                  _file;
    QTextStream*                            _stream;
    QMap<QString, int>                      _headers;
    QStringList                             _headersNames;
    QMap<QString, int>                      _neededFieldsColumns;
    QList<CT_TextFileConfigurationFields>   _neededFields;
    QString                                 _separator;
    QList<FileFormat>                       _extensions;
    bool                                    _autoDetect;

    void initConstructor(QString fileName, bool autoDetect);
};

#endif // CT_TEXTFILECONFIGURATIONDIALOG_H