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#include "remoteserver.h"

#include "remoteserver_p.h"
#include "repository.h"

namespace QInstaller {

/*!
    Constructs an remote server object with \a parent.
*/
RemoteServer::RemoteServer(QObject *parent)
    : QObject(parent)
    , d_ptr(new RemoteServerPrivate(this))
{
    Repository::registerMetaType(); // register, cause we stream the type as QVariant
}

/*!
    Destroys the remote server object.
*/
RemoteServer::~RemoteServer()
{
    Q_D(RemoteServer);
    d->m_thread.quit();
    d->m_thread.wait();
}

/*!
    Starts the server.

    \note If running in debug mode, the timer that kills the server after 30 seconds without
    usage is not started, so the server runs in an endless loop.
*/
void RemoteServer::start()
{
    Q_D(RemoteServer);
    if (d->m_localServer)
        return;

#if defined(Q_OS_UNIX) && !defined(Q_OS_OSX)
    // avoid writing to stderr:
    // the parent process has redirected stderr to a pipe to work with sudo,
    // but is not reading anymore -> writing to stderr will block after a while.
    if (d->m_mode == Protocol::Mode::Production)
        fclose(stderr);
#endif

    d->m_localServer = new LocalServer(d->m_socketName, d->m_key);
    d->m_localServer->moveToThread(&d->m_thread);
    connect(&d->m_thread, SIGNAL(finished()), d->m_localServer, SLOT(deleteLater()));
    connect(d->m_localServer, SIGNAL(newIncomingConnection()), this, SLOT(restartWatchdog()));
    connect(d->m_localServer, SIGNAL(shutdownRequested()), this, SLOT(deleteLater()));
    d->m_thread.start();

    if (d->m_mode == Protocol::Mode::Production) {
        connect(d->m_watchdog.data(), SIGNAL(timeout()), this, SLOT(deleteLater()));
        d->m_watchdog->start();
    }
}

/*!
    Initializes the server with \a socketName, with \a key, the key the client
    needs to send to authenticate with the server, and \a mode.
*/
void RemoteServer::init(const QString &socketName, const QString &key, Protocol::Mode mode)
{
    Q_D(RemoteServer);
    d->m_socketName = socketName;
    d->m_key = key;
    d->m_mode = mode;
}

/*!
    Returns the socket name the server is listening on.
*/
QString RemoteServer::socketName() const
{
    Q_D(const RemoteServer);
    return d->m_socketName;
}

/*!
    Returns the authorization key.
*/
QString RemoteServer::authorizationKey() const
{
    Q_D(const RemoteServer);
    return d->m_key;
}

/*!
    Restarts the watchdog that tries to kill the server.
*/
void RemoteServer::restartWatchdog()
{
    Q_D(RemoteServer);
    if (d->m_watchdog)
        d->m_watchdog->start();
}

} // namespace QInstaller
