#include "dev_ftcmock.h"

#include <LtsSession/lts_session.h>
#include <LtsWidgets/lts_global_wait_dialog.h>

#include <QTimer>
#include <QRandomGenerator>
#include <QLabel>
#include <QEventLoop>
#include <QDebug>


namespace DeveloperTools
{
FtcMock::FtcMock(LtsSession::LtsSession *session, int min, int max, int timers)
  : m_session(session)
  , m_exmFtc(ExerciseManagement::Interface::Ftc::create(m_session->ddsConnector()))
  , m_gen(QRandomGenerator::global())
  , m_min(min)
  , m_max(max)
{
  for (int i = 0; i <= timers; i++)
  {
    auto *t = new QTimer(this);
    t->setSingleShot(true);
    t->setInterval(m_gen->bounded(min, max));
    QObject::connect(t, &QTimer::timeout, this, &FtcMock::mock, Qt::QueuedConnection);
    t->start();
  }
}


void FtcMock::mock()
{
  QPointer<QTimer> t(static_cast<QTimer *>(sender()));

  uint32_t bit = 32;
#define CHANCE(x) (((flags >> (bit-=x)) & x) == x)
  const uint32_t flags = m_gen->generate();
  auto exmFtc = m_exmFtc;

  auto go = [this, flags, &bit, &exmFtc]()
  {
    bool useOwnFtc = CHANCE(0b111);

    if (useOwnFtc)
    {
      fprintf(stderr, "ftcmock: use own, new ftc\n");
      exmFtc = ExerciseManagement::Interface::Ftc::create(m_session->ddsConnector(), true /*don't reuse*/);
    }

    exmFtc->enableGetExerciseImage();
    auto req = ExerciseManagement::GetExerciseImageRequest();
    req.exerciseId(42);
    ExerciseManagement::GetExerciseImageReply rep;
    try
    {
      //Waiter _;
      rep = exmFtc->getExerciseImageRequest(req);
    }
    catch(const std::runtime_error &ex)
    {
      qWarning() << "!!!!!!!!!!!!!!!!! getExerciseImageRequest error: " << ex.what();
      //Q_ASSERT(false);
      return;
    }


    if (useOwnFtc && CHANCE(0b11))
    {
      // wait for thread to time out & die
      auto *l = new QLabel;
      QEventLoop x;
      QObject::connect(l, &QLabel::linkActivated, &x, &QEventLoop::quit);
      QTimer::singleShot(13000, l, [l](){ emit l->linkActivated({}); });
      fprintf(stderr, "ftcmock: WAITING FOR THREAD TO TIME OUT & DIE....\n");
      x.exec();
      fprintf(stderr, "ftcmock: DONE!\n");
      l->deleteLater();


      // ... then get again to start the thread again
      ExerciseManagement::GetExerciseImageReply rep;
      try
      {
        //Waiter _;
        rep = exmFtc->getExerciseImageRequest(req);
      }
      catch(const std::runtime_error &ex)
      {
        qWarning() << "!!!!!!!!!!!!!!!!! getExerciseImageRequest #2 error: " << ex.what();
        //Q_ASSERT(false);
        return;
      }
    }


    exmFtc->enableExerciseImageModify();
    auto req2 = ExerciseManagement::ExerciseImageModifyRequest(42, rep.imageData());
    try
    {
      //Waiter _;
      auto id = exmFtc->exerciseImageModifyRequest(req2);
      if (id < 1)
      {
        qWarning() << "id < 1";
        Q_ASSERT(false);
        return;
      }
    }
    catch(const std::runtime_error &ex)
    {
      qWarning() << "!!!!!!!!!!!!!!!!! exerciseImageModifyRequest error: " << ex.what();
      //Q_ASSERT(false);
      return;
    }
  };

  go();

  if (CHANCE(0b11))
  {
    fprintf(stderr, "ftcmock: again #1\n");
    go(); // again
  }

  if (CHANCE(0b11))
  {
    fprintf(stderr, "ftcmock: again #2\n");
    go(); // again
  }


  if (!t)
    return;

  t->setInterval(m_gen->bounded(m_min, m_max));
  fprintf(stderr, "ftcmock: in %d ms\n", t->interval());
  t->start();
}


FtcMock::~FtcMock()
{

}

} // namespace DeveloperTools