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#include "maemorunconfiguration.h"

#include "abstractlinuxdevicedeploystep.h"
#include "qt4maemotarget.h"
#include "maemoconstants.h"
#include "maemoglobal.h"
#include "maemoremotemountsmodel.h"
#include "maemorunconfigurationwidget.h"
#include "qt4maemodeployconfiguration.h"

#include <debugger/debuggerconstants.h>
#include <projectexplorer/project.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <qt4projectmanager/qt4buildconfiguration.h>

#include <QtCore/QDir>
#include <QtCore/QFileInfo>

using namespace ProjectExplorer;
using namespace Qt4ProjectManager;

namespace RemoteLinux {
namespace Internal {

MaemoRunConfiguration::MaemoRunConfiguration(AbstractQt4MaemoTarget *parent,
        const QString &proFilePath)
    : RemoteLinuxRunConfiguration(parent, Id, proFilePath)
{
    init();
}

MaemoRunConfiguration::MaemoRunConfiguration(AbstractQt4MaemoTarget *parent,
        MaemoRunConfiguration *source)
    : RemoteLinuxRunConfiguration(parent, source)
{
    init();
}

void MaemoRunConfiguration::init()
{
    m_remoteMounts = new MaemoRemoteMountsModel(this);
    connect(m_remoteMounts, SIGNAL(rowsInserted(QModelIndex, int, int)), this,
        SLOT(handleRemoteMountsChanged()));
    connect(m_remoteMounts, SIGNAL(rowsRemoved(QModelIndex, int, int)), this,
        SLOT(handleRemoteMountsChanged()));
    connect(m_remoteMounts, SIGNAL(dataChanged(QModelIndex, QModelIndex)), this,
        SLOT(handleRemoteMountsChanged()));
    connect(m_remoteMounts, SIGNAL(modelReset()), SLOT(handleRemoteMountsChanged()));
}

bool MaemoRunConfiguration::isEnabled() const
{
    if (!RemoteLinuxRunConfiguration::isEnabled())
        return false;
    if (!hasEnoughFreePorts(ProjectExplorer::Constants::RUNMODE)) {
        setDisabledReason(tr("Not enough free ports on the device."));
        return false;
    }
    return true;
}

QWidget *MaemoRunConfiguration::createConfigurationWidget()
{
    return new MaemoRunConfigurationWidget(this);
}

QVariantMap MaemoRunConfiguration::toMap() const
{
    QVariantMap map = RemoteLinuxRunConfiguration::toMap();
    map.unite(m_remoteMounts->toMap());
    return map;
}

bool MaemoRunConfiguration::fromMap(const QVariantMap &map)
{
    if (!RemoteLinuxRunConfiguration::fromMap(map))
        return false;
    m_remoteMounts->fromMap(map);
    return true;
}

QString MaemoRunConfiguration::commandPrefix() const
{
    if (!deviceConfig())
        return QString();

    return QString::fromLocal8Bit("%1 %2")
        .arg(MaemoGlobal::remoteCommandPrefix(deviceConfig()->osType()),
             userEnvironmentChangesAsString());
}

PortList MaemoRunConfiguration::freePorts() const
{
    const Qt4BuildConfiguration * const bc = activeQt4BuildConfiguration();
    return bc && deployConfig()
            ? MaemoGlobal::freePorts(deployConfig()->deviceConfiguration(), bc->qtVersion())
        : PortList();
}

RemoteLinuxRunConfiguration::DebuggingType MaemoRunConfiguration::debuggingType() const
{
    if (!maemoTarget()->allowsQmlDebugging())
        return DebugCppOnly;
    return RemoteLinuxRunConfiguration::debuggingType();
}

QString MaemoRunConfiguration::localDirToMountForRemoteGdb() const
{
    const QString projectDir
        = QDir::fromNativeSeparators(QDir::cleanPath(activeBuildConfiguration()
            ->target()->project()->projectDirectory()));
    const QString execDir
        = QDir::fromNativeSeparators(QFileInfo(localExecutableFilePath()).path());
    const int length = qMin(projectDir.length(), execDir.length());
    int lastSeparatorPos = 0;
    for (int i = 0; i < length; ++i) {
        if (projectDir.at(i) != execDir.at(i))
            return projectDir.left(lastSeparatorPos);
        if (projectDir.at(i) == QLatin1Char('/'))
            lastSeparatorPos = i;
    }
    return projectDir.length() == execDir.length()
        ? projectDir : projectDir.left(lastSeparatorPos);
}

QString MaemoRunConfiguration::remoteProjectSourcesMountPoint() const
{
    return MaemoGlobal::homeDirOnDevice(deviceConfig()->sshParameters().userName)
        + QLatin1String("/gdbSourcesDir_")
        + QFileInfo(localExecutableFilePath()).fileName();
}

bool MaemoRunConfiguration::hasEnoughFreePorts(const QString &mode) const
{
    const int freePortCount = freePorts().count();
    const bool remoteMountsAllowed = maemoTarget()->allowsRemoteMounts();
    const int mountDirCount = remoteMountsAllowed
        ? remoteMounts()->validMountSpecificationCount() : 0;
    if (mode == Debugger::Constants::DEBUGMODE)
        return freePortCount >= mountDirCount + portsUsedByDebuggers();
    if (mode == ProjectExplorer::Constants::RUNMODE)
        return freePortCount >= mountDirCount;
    return false;
}

void MaemoRunConfiguration::handleRemoteMountsChanged()
{
    emit remoteMountsChanged();
    updateEnabledState();
}

const AbstractQt4MaemoTarget *MaemoRunConfiguration::maemoTarget() const
{
    const AbstractQt4MaemoTarget * const maemoTarget
        = qobject_cast<AbstractQt4MaemoTarget *>(target());
    Q_ASSERT(maemoTarget);
    return maemoTarget;
}

const QString MaemoRunConfiguration::Id = QLatin1String(MAEMO_RC_ID);

} // namespace Internal
} // namespace RemoteLinux
