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#include "cvsclient.h"
#include "cvssettings.h"
#include "cvsconstants.h"

#include <vcsbase/vcsbaseplugin.h>
#include <vcsbase/vcsbaseeditor.h>
#include <vcsbase/vcsbaseconstants.h>
#include <vcsbase/vcsbaseeditorparameterwidget.h>
#include <utils/synchronousprocess.h>

#include <QDir>
#include <QFileInfo>
#include <QTextStream>
#include <QDebug>

using namespace Utils;
using namespace VcsBase;

namespace Cvs {
namespace Internal {

class CvsDiffExitCodeInterpreter : public ExitCodeInterpreter
{
    Q_OBJECT
public:
    CvsDiffExitCodeInterpreter(QObject *parent) : ExitCodeInterpreter(parent) {}
    SynchronousProcessResponse::Result interpretExitCode(int code) const;

};

SynchronousProcessResponse::Result CvsDiffExitCodeInterpreter::interpretExitCode(int code) const
{
    if (code < 0 || code > 2)
        return SynchronousProcessResponse::FinishedError;
    return SynchronousProcessResponse::Finished;
}

// Parameter widget controlling whitespace diff mode, associated with a parameter
class CvsDiffParameterWidget : public VcsBaseEditorParameterWidget
{
    Q_OBJECT
public:
    explicit CvsDiffParameterWidget(CvsSettings *settings, QWidget *parent = 0);
    QStringList arguments() const;

private:
    const CvsSettings *m_settings;
};

CvsDiffParameterWidget::CvsDiffParameterWidget(CvsSettings *settings, QWidget *parent)
    : VcsBaseEditorParameterWidget(parent),
      m_settings(settings)
{
    mapSetting(addToggleButton(QLatin1String("-w"), tr("Ignore Whitespace")),
               settings->boolPointer(CvsSettings::diffIgnoreWhiteSpaceKey));
    mapSetting(addToggleButton(QLatin1String("-B"), tr("Ignore Blank Lines")),
               settings->boolPointer(CvsSettings::diffIgnoreBlankLinesKey));
}

QStringList CvsDiffParameterWidget::arguments() const
{
    QStringList args;
    args = m_settings->stringValue(CvsSettings::diffOptionsKey).split(QLatin1Char(' '), QString::SkipEmptyParts);
    args += VcsBaseEditorParameterWidget::arguments();
    return args;
}

CvsClient::CvsClient(CvsSettings *settings) :
    VcsBaseClient(settings)
{
    setDiffParameterWidgetCreator([=] { return new CvsDiffParameterWidget(settings); });
}

CvsSettings *CvsClient::settings() const
{
    return dynamic_cast<CvsSettings *>(VcsBaseClient::settings());
}

Core::Id CvsClient::vcsEditorKind(VcsCommandTag cmd) const
{
    switch (cmd) {
    case DiffCommand:
        return "CVS Diff Editor"; // TODO: replace by string from cvsconstants.h
    default:
        return Core::Id();
    }
}

ExitCodeInterpreter *CvsClient::exitCodeInterpreter(VcsCommandTag cmd, QObject *parent) const
{
    switch (cmd) {
    case DiffCommand:
        return new CvsDiffExitCodeInterpreter(parent);
    default:
        return 0;
    }
}

void CvsClient::diff(const QString &workingDir, const QStringList &files,
                     const QStringList &extraOptions)
{
    VcsBaseClient::diff(workingDir, files, extraOptions);
}

QString CvsClient::findTopLevelForFile(const QFileInfo &file) const
{
    Q_UNUSED(file)
    return QString();
}

QStringList CvsClient::revisionSpec(const QString &revision) const
{
    Q_UNUSED(revision)
    return QStringList();
}

VcsBaseClient::StatusItem CvsClient::parseStatusLine(const QString &line) const
{
    Q_UNUSED(line)
    return VcsBaseClient::StatusItem();
}

} // namespace Internal
} // namespace Cvs

#include "cvsclient.moc"
