/************************************************************************
 **
 **  @file   dialogindividualmeasurements.cpp
 **  @author Roman Telezhinsky <dismine@gmail.com>
 **  @date   22 2, 2014
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentine project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013 Valentina project
 **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
 **
 **  Valentina 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.
 **
 **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "dialogindividualmeasurements.h"
#include "ui_dialogindividualmeasurements.h"
#include <QButtonGroup>
#include "../../xml/vindividualmeasurements.h"
#include <QSettings>
#include <QFileDialog>
#include <QMessageBox>

DialogIndividualMeasurements::DialogIndividualMeasurements(VContainer *data, QWidget *parent) :
    QDialog(parent), ui(new Ui::DialogIndividualMeasurements), _name(QString()), _tablePath(QString()), data(data)
{
    ui->setupUi(this);

    {
        const QPushButton *bOk = ui->buttonBox->button(QDialogButtonBox::Ok);
        Q_CHECK_PTR(bOk);
        connect(bOk, &QPushButton::clicked, this, &DialogIndividualMeasurements::DialogAccepted);
    }
    {
        const QPushButton *bCansel = ui->buttonBox->button(QDialogButtonBox::Cancel);
        Q_CHECK_PTR(bCansel);
        connect(bCansel, &QPushButton::clicked, this, &DialogIndividualMeasurements::DialogRejected);
    }

    LoadIndividualTables();

    CheckState();
    connect(ui->lineEditName, &QLineEdit::textChanged, this, &DialogIndividualMeasurements::CheckState);
    connect(ui->buttonGroupPath, static_cast<void (QButtonGroup::*)(int)>(&QButtonGroup::buttonClicked), this,
            &DialogIndividualMeasurements::CheckState);
    connect(ui->toolButtonOpenExist, &QToolButton::clicked, this, &DialogIndividualMeasurements::OpenTable);
    connect(ui->toolButtonOpenNew, &QToolButton::clicked, this, &DialogIndividualMeasurements::NewTable);
}

DialogIndividualMeasurements::~DialogIndividualMeasurements()
{
    delete ui;
}

void DialogIndividualMeasurements::DialogAccepted()
{
    _name = ui->lineEditName->text();
    if (ui->radioButtonExistM->isChecked())
    {
        _tablePath = ui->lineEditPathExistM->text();
    }
    else
    {
        _tablePath = ui->lineEditPathNewM->text();
        QFile table(_tablePath);
        if (table.exists())
        {
            table.remove();
        }

        const qint32 index = ui->comboBoxLang->currentIndex();
        QString path = ui->comboBoxLang->itemData(index).toString();
        QFile iMeasur(path);
        if ( iMeasur.copy(_tablePath) == false )
        {
            QMessageBox::warning(this, tr("Could not create measurements file"), tr("Please try again or change file"));
            return;
        }
    }
    accept();
}

void DialogIndividualMeasurements::DialogRejected()
{
    _name = "";
    _tablePath = "";
    reject();
}

void DialogIndividualMeasurements::CheckState()
{
    bool flagName = false;
    if (ui->lineEditName->text().isEmpty() == false)
    {
        flagName = true;
    }

    bool flagPath = false;
    if (ui->radioButtonExistM->isChecked())
    {
        ui->lineEditPathExistM->setEnabled(true);
        ui->toolButtonOpenExist->setEnabled(true);

        ui->lineEditPathNewM->setEnabled(false);
        ui->toolButtonOpenNew->setEnabled(false);
        ui->comboBoxLang->setEditable(false);

        if (ui->lineEditPathExistM->text().isEmpty() == false)
        {
            flagPath = true;
        }
    }
    else
    {
        ui->lineEditPathNewM->setEnabled(true);
        ui->toolButtonOpenNew->setEnabled(true);
        ui->comboBoxLang->setEditable(true);

        ui->toolButtonOpenExist->setEnabled(false);
        ui->lineEditPathExistM->setEnabled(false);

        if (ui->lineEditPathNewM->text().isEmpty() == false)
        {
            flagPath = true;
        }
    }

    bool flagLang = false;
    {
        const QComboBox *box = ui->comboBoxLang;
        Q_CHECK_PTR(box);
        if (box->count() > 0 && box->currentIndex() != -1)
        {
            flagLang = true;
        }
    }

    QPushButton *bOk = ui->buttonBox->button(QDialogButtonBox::Ok);
    Q_CHECK_PTR(bOk);
    bOk->setEnabled(flagName && flagPath && flagLang);
}

void DialogIndividualMeasurements::LoadIndividualTables()
{
#ifdef Q_OS_WIN
    const QString pathToTables = QString("/tables/individual");
#else
    #ifdef QT_DEBUG
        const QString pathToTables = QString("/tables/individual");
    #else
        const QString pathToTables = QString("/usr/share/valentina/tables/individual");
    #endif
#endif
    QStringList filters;
    filters << "*.vit";
    QDir tablesDir(pathToTables);
    tablesDir.setNameFilters(filters);

    const QStringList allFiles = tablesDir.entryList(QDir::NoDotAndDotDot | QDir::Files);
    if (allFiles.isEmpty() == true)
    {
        ui->comboBoxLang->clear();
        CheckState();
        return;
    }

    for (int i = 0; i < allFiles.size(); ++i)
    {
        QFile file(allFiles.at(i));
        if (file.open(QIODevice::ReadOnly))
        {
            try
            {
                VDomDocument::ValidatePattern("://schema/standard_measurements.xsd", allFiles.at(i));
            }
            catch(VException &e)
            {
                qWarning()<<"Validation file error."<<e.ErrorMessage()<<e.DetailedInformation()<<Q_FUNC_INFO;
                continue;
            }

            VIndividualMeasurements m(data);
            try
            {
                m.setContent(&file);
                const QString lang = QLocale(m.Language()).nativeLanguageName();
                ui->comboBoxLang->addItem(lang, QVariant(allFiles.at(i)));
            }
            catch(VException &e)
            {
                qWarning()<<"Parsing pattern file error."<<e.ErrorMessage()<<e.DetailedInformation()<<Q_FUNC_INFO;
                continue;
            }

            file.close();
        }
        else
        {
            qWarning()<<tr("Cannot read file %1:\n%2.").arg(allFiles.at(i)).arg(file.errorString()) << Q_FUNC_INFO;
        }
    }
    QSettings settings(QSettings::IniFormat, QSettings::UserScope, QApplication::organizationName(),
                       QApplication::applicationName());

    QString defaultLocale = QLocale::system().name();       // e.g. "de_DE"
    defaultLocale.truncate(defaultLocale.lastIndexOf('_')); // e.g. "de"
    QString checkedLocale = settings.value("configuration/locale", defaultLocale).toString();

    // set default translators and language checked
    qint32 index = ui->comboBoxLang->findData(checkedLocale);
    if (index != -1)
    {
        ui->comboBoxLang->setCurrentIndex(index);
    }
}

void DialogIndividualMeasurements::OpenTable()
{
    const QString filter(tr("Individual measurements (*.vit)"));
    const QString fileName = QFileDialog::getOpenFileName(this, tr("Open file"), QDir::homePath(), filter);
    ui->lineEditPathExistM->setText(fileName);
    CheckState();
}

void DialogIndividualMeasurements::NewTable()
{
    QString name = QFileDialog::getSaveFileName(this, tr("Where save measurements?"), QDir::homePath(),
                                                tr("Individual measurements (*.vit)"));

    if (name.isEmpty())
    {
        return;
    }

    // what if the users did not specify a suffix...?
    QFileInfo f( name );
    if (f.suffix().isEmpty() && f.suffix() != "vit")
    {
        name += ".vit";
    }
    ui->lineEditPathNewM->setText(name);
    CheckState();
}