/************************************************************************
 **
 **  @file   vpcommandline.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   12 4, 2020
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentina project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2020 Valentina project
 **  <https://gitlab.com/smart-pattern/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 "vpcommandline.h"
#include "vpcommands.h"
#include "../vmisc/vsysexits.h"
#include "../vmisc/literals.h"
#include <QDebug>

std::shared_ptr<VPCommandLine> VPCommandLine::instance = nullptr; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)

#define translate(context, source) QCoreApplication::translate((context), source)// NOLINT(cppcoreguidelines-macro-usage)

//------------------------------------------------------------------------------------------------
auto VPCommandLine::IsExportEnabled() const -> bool
{
    const bool result = IsOptionSet(LONG_OPTION_EXPORT_FILE);
    int argSize = parser.positionalArguments().size();
    if (result && argSize != 1)
    {
        qCritical() << translate("Puzzle", "Export options can be used with single input file only.") << "/n";
        const_cast<VPCommandLine*>(this)->parser.showHelp(V_EX_USAGE);
    }
    return result;
}

//----------------------------------------------------------------------------------------------
auto VPCommandLine::OptionExportFile() const -> QString
{
    QString path;
    if (IsExportEnabled())
    {
        path = OptionValue(LONG_OPTION_EXPORT_FILE);
    }

    return path;
}

//---------------------------------------------------------------------------------------------------------------------
auto VPCommandLine::OptionRawLayouts() const -> QStringList
{
    return OptionValues(LONG_OPTION_RAW_LAYOUT);
}

//--------------------------------------------------------------------------------------------
auto VPCommandLine::IsTestModeEnabled() const -> bool
{
    const bool r = IsOptionSet(LONG_OPTION_TEST);
    if (r && parser.positionalArguments().size() != 1)
    {
        qCritical() << translate("VCommandLine", "Test option can be used with single input file only.") << "/n";
        const_cast<VPCommandLine*>(this)->parser.showHelp(V_EX_USAGE);
    }
    return r;
}

//--------------------------------------------------------------------------------------------
auto VPCommandLine::IsGuiEnabled() const -> bool
{
    return isGuiEnabled;
}

//--------------------------------------------------------------------------------------------
auto VPCommandLine::OptionFileNames() const -> QStringList
{
    return parser.positionalArguments();
}

//-------------------------------------------------------------------------------------------
auto VPCommandLine::IsNoScalingEnabled() const -> bool
{
    return IsOptionSet(LONG_OPTION_NO_HDPI_SCALING);
}

//----------------------------------------------------------------------------------------------------------------------
void VPCommandLine::ShowHelp(int exitCode)
{
    parser.showHelp(exitCode);
}

//----------------------------------------------------------------------------------------------
VPCommandLine::VPCommandLine()
{
    parser.setApplicationDescription(translate("Puzzle", "Valentina's manual layout editor."));
    parser.addHelpOption();
    parser.addVersionOption();
    parser.addPositionalArgument(QStringLiteral("filename"), translate("Puzzle", "The manual layout file."));

    InitCommandLineOptions();
}

//-------------------------------------------------------------------------------------------
auto VPCommandLine::Instance() -> VPCommandLinePtr
{
    VPCommandLine::ProcessInstance(instance, QCoreApplication::arguments());
    return instance;
}

//---------------------------------------------------------------------------------------------------------------------
void VPCommandLine::ProcessInstance(VPCommandLinePtr &instance, const QStringList &arguments)
{
    if (instance == nullptr)
    {
        instance.reset(new VPCommandLine);
    }
    instance->parser.process(arguments);

    instance->isGuiEnabled = not (instance->IsGuiEnabled() || instance->IsExportEnabled());
}

//-------------------------------------------------------------------------------------------
void VPCommandLine::InitCommandLineOptions()
{
    //keep in mind order here - that is how user will see it, so group-up for usability
    //=================================================================================================================
    parser.addOptions({
        {{SINGLE_OPTION_EXPORT_FILE, LONG_OPTION_EXPORT_FILE},
         translate("VCommandLine", "The filename of exported layout file. Use it to enable console export mode."),
         translate("VCommandLine", "The filename of layout file")},
        {{SINGLE_OPTION_RAW_LAYOUT, LONG_OPTION_RAW_LAYOUT},
         translate("VCommandLine", "Load pattern pieces from the raw layout data file."),
         translate("VCommandLine", "The raw layout data file")},
        {{SINGLE_OPTION_EXP2FORMAT, LONG_OPTION_EXP2FORMAT},
         translate("VCommandLine", "Number corresponding to output format (default = 0, export mode): <not defined>"),
         translate("VCommandLine", "Format number"), QChar('0')},
        {LONG_OPTION_BINARYDXF, translate("VCommandLine", "Export dxf in binary form.")},
        {LONG_OPTION_TEXT2PATHS, translate("VCommandLine", "Export text as paths.")},
    //=================================================================================================================
        {{SINGLE_OPTION_CROP_LENGTH, LONG_OPTION_CROP_LENGTH},
         translate("VCommandLine", "Auto crop unused length (export mode).")},
        {LONG_OPTION_CROP_WIDTH,
         translate("VCommandLine", "Auto crop unused width (export mode).")},
    //=================================================================================================================
        {LONG_OPTION_TILED_PDF_PAGE_TEMPLATE,
         translate("VCommandLine", "Number corresponding to tiled pdf page template (default = 0, export mode with "
                                   "tiled pdf format): <not defined>"),
         translate("VCommandLine", "Template number"), QChar('0')},
        {LONG_OPTION_TILED_PDF_LEFT_MARGIN,
         translate("VCommandLine","Tiled page left margin in current units like 3.0 (export mode). If not set will be "
                                   "used default value 1 cm."),
         translate("VCommandLine", "The left margin")},
        {LONG_OPTION_TILED_PDF_RIGHT_MARGIN,
         translate("VCommandLine", "Tiled page right margin in current units like 3.0 (export mode). If not set will "
                                   "be used default value 1 cm."),
         translate("VCommandLine", "The right margin")},
        {LONG_OPTION_TILED_PDF_TOP_MARGIN,
         translate("VCommandLine", "Tiled page top margin in current units like 3.0 (export mode). If not set will be "
                                   "used value default value 1 cm."),
         translate("VCommandLine", "The top margin")},
        {LONG_OPTION_TILED_PDF_BOTTOM_MARGIN,
         translate("VCommandLine", "Tiled page bottom margin in current units like 3.0 (export mode). If not set will "
                                   "be used value default value 1 cm."),
         translate("VCommandLine", "The bottom margin")},
        {LONG_OPTION_TILED_PDF_LANDSCAPE,
         translate("VCommandLine", "Set tiled page orienatation to landscape (export mode). Default value if not set "
                                   "portrait.")},
    //=================================================================================================================
        {{SINGLE_OPTION_TEST, LONG_OPTION_TEST},
         translate("VCommandLine", "Run the program in a test mode. The program in this mode loads a single layout "
                                   "file and silently quit without showing the main window. The key have priority "
                                   "before key '%1'.").arg(LONG_OPTION_EXPORT_FILE)},
        {LONG_OPTION_NO_HDPI_SCALING,
         translate("VCommandLine", "Disable high dpi scaling. Call this option if has problem with scaling (by default "
                                   "scaling enabled). Alternatively you can use the %1 environment variable.")
             .arg(QStringLiteral("QT_AUTO_SCREEN_SCALE_FACTOR=0"))},
    });
}

//--------------------------------------------------------------------------------------------
auto VPCommandLine::IsOptionSet(const QString &option) const -> bool
{
    return parser.isSet(option);
}

//-------------------------------------------------------------------------------------------
auto VPCommandLine::OptionValue(const QString &option) const -> QString
{
    return parser.value(option);
}

//--------------------------------------------------------------------------------------------
auto VPCommandLine::OptionValues(const QString &option) const -> QStringList
{
    return parser.values(option);
}


