/**
  * @RDE_HEADER@
  * SimpleCommand
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Fröbel, SLSE, 2017-07-11
  */

#include "simple_command.h"
#include "iava_comm.h"
#include "iava_command_done_observer.h"
#include "ivd_comm.h"
#include "ivd_command_done_observer.h"
#include <QtGlobal>


namespace AudioVideoManagement
{

namespace detail
{

template<class Comm, class DoneObserver>
SimpleCommand<Comm, DoneObserver>::SimpleCommand(const QString &commandDesc, Comm *comm, DoneObserver *observer, std::function<void (Comm *)> commandInvoker, int okCount)
  : m_commandInvoker(std::move(commandInvoker))
  , m_expectedOkCount(okCount)
  , m_comm(comm)
  , m_observer(observer)
  , m_commandDesc(commandDesc)
{
  Q_ASSERT(comm);
  Q_ASSERT(observer);
  Q_ASSERT(okCount > 0);
}

template<class Comm, class DoneObserver>
void SimpleCommand<Comm, DoneObserver>::send()
{
  connect(m_comm, &Comm::ok, this, &SimpleCommand::onOk);
  m_commandInvoker(m_comm);
}

template<class Comm, class DoneObserver>
void SimpleCommand<Comm, DoneObserver>::onOk()
{
  Q_ASSERT(m_okCount < m_expectedOkCount);
  ++m_okCount;
  if (m_okCount == m_expectedOkCount)
    done();
}

template<class Comm, class DoneObserver>
void SimpleCommand<Comm, DoneObserver>::done()
{
  m_comm->disconnect(this);
  m_observer->done(this);
}

/**
 * Explicit template instantiations.
 */
///@{
template class SimpleCommand<IAvaComm, IAvaCommandDoneObserver>;
template class SimpleCommand<IVdComm, IVdCommandDoneObserver>;
///@}

} // namespace detail

} // namespace AudioVideoManagement