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** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
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#include <QDebug>

#include "qlauncherclient.h"
#include "qremoteprotocol.h"
#include "qprocessbackend.h"
#include "qprocessbackendmanager.h"

QT_BEGIN_NAMESPACE_PROCESSMANAGER

/*!
  \class QLauncherClient
  \brief The QLauncherClient class handles a single Launcher client.
  \inmodule QtProcessManager
 */

/*!
  Create a new QLauncherClient with QProcessBackendManager \a manager
 */

QLauncherClient::QLauncherClient(QProcessBackendManager *manager)
    : QObject(manager)
    , m_manager(manager)
{
}

/*!
  Process an incoming \a message
 */

void QLauncherClient::receive(const QJsonObject& message)
{
    // qDebug() << Q_FUNC_INFO << message;
    QString cmd = message.value(QRemoteProtocol::command()).toString();
    int id = message.value(QRemoteProtocol::id()).toDouble();
    if ( cmd == QRemoteProtocol::start() ) {
        QProcessInfo info(message.value(QRemoteProtocol::info()).toObject().toVariantMap());
        QProcessBackend *backend = m_manager->create(info, this);
        if (backend) {
            connect(backend, SIGNAL(started()), SLOT(started()));
            connect(backend, SIGNAL(finished(int, QProcess::ExitStatus)),
                    SLOT(finished(int, QProcess::ExitStatus)));
            connect(backend, SIGNAL(error(QProcess::ProcessError)), SLOT(error(QProcess::ProcessError)));
            connect(backend, SIGNAL(stateChanged(QProcess::ProcessState)),
                    SLOT(stateChanged(QProcess::ProcessState)));
            connect(backend, SIGNAL(standardOutput(const QByteArray&)),
                    SLOT(standardOutput(const QByteArray&)));
            connect(backend, SIGNAL(standardError(const QByteArray&)),
                    SLOT(standardError(const QByteArray&)));
            m_idToBackend.insert(id, backend);
            m_backendToId.insert(backend, id);
            backend->start();
        }
    }
    else if ( cmd == QRemoteProtocol::stop() ) {
        QProcessBackend *backend = m_idToBackend.value(id);
        if (backend) {
            int timeout = message.value(QRemoteProtocol::timeout()).toDouble();
            backend->stop(timeout);
        }
    }
    else if ( cmd == QRemoteProtocol::set() ) {
        QProcessBackend *backend = m_idToBackend.value(id);
        if (backend) {
            QString key = message.value(QRemoteProtocol::key()).toString();
            int value   = message.value(QRemoteProtocol::value()).toDouble();
            if (key == QRemoteProtocol::priority())
                backend->setDesiredPriority(value);
            else if (key == QRemoteProtocol::oomAdjustment())
                backend->setDesiredOomAdjustment(value);
        }
    }
    else if ( cmd == QRemoteProtocol::write() ) {
        QByteArray data = QByteArray::fromBase64(message.value(QRemoteProtocol::data()).toString().toLocal8Bit());
        QProcessBackend *backend = m_idToBackend.value(id);
        if (backend)
            backend->write(data);
    }
}

/*!
  \internal
 */

void QLauncherClient::started()
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::started());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::pid(), (double) backend->pid());
    emit send(msg);
}

/*!
  \internal
 */

void QLauncherClient::finished(int exitCode, QProcess::ExitStatus exitStatus)
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::finished());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::exitCode(), exitCode);
    msg.insert(QRemoteProtocol::exitStatus(), exitStatus);
    emit send(msg);
}

/*!
  \internal
 */

void QLauncherClient::error(QProcess::ProcessError err)
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::error());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::error(), err);
    msg.insert(QRemoteProtocol::errorString(), backend->errorString());
    emit send(msg);
}

/*!
  \internal
 */

void QLauncherClient::stateChanged(QProcess::ProcessState state)
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::stateChanged());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::stateChanged(), state);
    emit send(msg);
}

/*!
  \internal
 */

void QLauncherClient::standardOutput(const QByteArray& data)
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::output());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::standardout(), QString::fromLocal8Bit(data.data(), data.size()));
    emit send(msg);
}

/*!
  \internal
 */

void QLauncherClient::standardError(const QByteArray& data)
{
    QProcessBackend *backend = qobject_cast<QProcessBackend *>(sender());
    QJsonObject msg;
    msg.insert(QRemoteProtocol::event(), QRemoteProtocol::output());
    msg.insert(QRemoteProtocol::id(), m_backendToId.value(backend));
    msg.insert(QRemoteProtocol::standarderror(), QString::fromLocal8Bit(data.data(), data.size()));
    emit send(msg);
}

/*!
  \fn void QLauncherClient::send(const QJsonObject& message)

  Send a \a message to the remote controller.
*/

#include "moc_qlauncherclient.cpp"

QT_END_NAMESPACE_PROCESSMANAGER