#include "oven.h"
  
  #include <QtDebug>

  #include <QTime>

  #include <cmath>

  Oven *Oven::instance = 0;

  Oven::Oven(QObject *parent) : QObject(parent)
  {
      interface = NULL;

      currentHumidity_ = 0;
      currentTemp_ = 0;
      currentInterTemp_ = 0;

      cookingTimer.setSingleShot(true);

      connect(&cookingTimer, SIGNAL(timeout()), SLOT(stopCooking()));

      damperTimer.setSingleShot(true);

      connect(&damperTimer, SIGNAL(timeout()), SLOT(closeDamper()));

      humidificationTimer.setSingleShot(true);

      connect(&humidificationTimer, SIGNAL(timeout()), SLOT(stopHumidification()));
  
      damperRepeatRuntimeTimer.setSingleShot(true);
      connect(&damperRepeatRuntimeTimer, SIGNAL(timeout()), SLOT(idleRepeatDamper()));
  
      damperRepeatDelayTimer.setSingleShot(true);
      connect(&damperRepeatDelayTimer, SIGNAL(timeout()), SLOT(runRepeatDamper()));
  
      humidificationRepeatRuntimeTimer.setSingleShot(true);
      connect(&humidificationRepeatRuntimeTimer, SIGNAL(timeout()), SLOT(idleRepeatHumidification()));
  
      humidificationRepeatDelayTimer.setSingleShot(true);
      connect(&humidificationRepeatDelayTimer, SIGNAL(timeout()), SLOT(runRepeatHumidification()));
  
      isInterTempValid_ = false;
  
      humidificationRepeat = false;
      damperRepeat = false;

  }
  
  void Oven::setInterface(OvenInterface *interface)
  {
      if (this->interface)
          this->interface->disconnect();
  
      this->interface = interface;
      connect(interface, SIGNAL(doorOpened()), this, SLOT(onDoorOpened()));
      connect(interface, SIGNAL(doorClosed()), this, SLOT(onDoorClosed()));
  }

  void Oven::setMode(Define::Mode mode)

  {
      if (setMode_(mode))
          emit changed(this);
  }

  bool Oven::setMode_(Define::Mode mode)

  {
      switch (mode)
      {

      case Define::DryMode:
      case Define::SteamMode:
      case Define::CombiMode:

          break;
      default:
          return false;
      }
  
      if (mode != mode_)
      {
          mode_ = mode;

          interface->setMode(mode);

          return true;
      }
  
      return false;
  }

  void Oven::setDefault(Define::Mode mode)

  {
      setMode_(mode);
      switch (mode)
      {

      case Define::DryMode:

          setHumidity_(0);
          setTemp_(160);
          break;

      case Define::SteamMode:

          setHumidity_(100);
          setTemp_(100);
          break;

      case Define::CombiMode:

          setHumidity_(50);
          setTemp_(100);
          break;
      }
  
      setTime(0);
      setInterTempEnabled_(false);

      setInterTemp_(minInterTemp());

      setFan_(4);
  
      cooking_ = false;
      preheating_ = false;
      cooldown_ = false;
      damper_ = false;
      humidification_ = false;

      door_ = interface->door();
      paused_ = false;
  
      emit changed(this);
  }
  
  void Oven::setHumidity(int percentage)
  {
      if (setHumidity_(percentage))
          emit changed(this);
  }
  
  bool Oven::setHumidity_(int percentage)
  {
      if (percentage < 0 || percentage > 100)
          return false;
  
      if (percentage != humidity_)
      {
          humidity_ = percentage;
          interface->setHumidity(percentage);
  
          return true;
      }
  
      return false;
  }
  
  void Oven::setTemp(int celsius)
  {
      if (setTemp_(celsius))
          emit changed(this);
  }
  
  bool Oven::setTemp_(int celsius)
  {
      if (celsius < minTemp() || celsius > maxTemp())
          return false;
  
      if (celsius != temp_)
      {
          temp_ = celsius;
          interface->setTemp(celsius);
  
          return true;
      }
  
      return false;
  }
  
  int Oven::time()
  {
      int left = cookingTimer.remainingTime();
      int interval = cookingTimer.interval();
      if (left > interval)
          left = interval;
  
      if (cooking())
          return ceil(left / 1000.0);
  
      return time_;
  }
  
  void Oven::setTime(int secs)
  {
      time_ = secs;
      cookingTimer.setInterval(secs * 1000);
  }
  
  void Oven::setInterTempEnabled(bool enabled)
  {
      if (setInterTempEnabled_(enabled))
          emit changed(this);
  }
  
  bool Oven::setInterTempEnabled_(bool enabled)
  {
      if (interTempEnabled_ != enabled)
      {
          interTempEnabled_ = enabled;

          if (interTempEnabled_)
              interface->setInterTemp(interTemp_);
          else

              interface->setInterTemp(0);

          return true;
      }
  
      return false;
  }
  
  void Oven::setInterTemp(int celsius)
  {
      if (setInterTemp_(celsius))
          emit changed(this);
  }
  
  bool Oven::setInterTemp_(int celsius)
  {
      if (celsius < minInterTemp() || celsius > maxInterTemp())
          return false;
  
      if (celsius != interTemp_)
      {
          interTemp_ = celsius;

          if (interTempEnabled_)
              interface->setInterTemp(celsius);

  
          return true;
      }
  
      return false;
  }
  
  void Oven::setFan(int speed)
  {
      if (setFan_(speed))
          emit changed(this);
  }
  
  bool Oven::setFan_(int speed)
  {
      if (speed < minFan() || speed > maxFan())
          return false;
  
      if (speed == fan_)
          return false;

      int rpm = 0;

      switch (speed)
      {
      case 1:
          rpm = 500;
          break;
      case 2:
          rpm = 725;
          break;
      case 3:
          rpm = 950;
          break;
      case 4:
          rpm = 1175;
          break;
      case 5:
          rpm = 1400;
          break;
      }
  
      fan_ = speed;
      interface->setFan(rpm);
  
      return true;
  }

  bool Oven::isInterTempValid()
  {
      return isInterTempValid_ && interTempValidTime.elapsed() > 3000;
  }

  int Oven::msecs()
  {
      int left = cookingTimer.remainingTime();
      int interval = cookingTimer.interval();
      if (left > interval)
          left = interval;
  
      if (cooking())
          return left;
  
      return time_ * 1000;
  }

  bool Oven::cookingStartable()
  {

      if (/*door() || */cooking() || time() <= 0)

          return false;
  
      return true;
  }
  
  bool Oven::preheatingStartable()
  {
      if (door())
          return false;
  
      return true;
  }
  
  bool Oven::cooldownStartable()
  {
      return true;
  }
  
  bool Oven::damperOpenable()
  {
      return true;
  }
  
  bool Oven::humidificationStartable()
  {
      return true;
  }
  
  void Oven::stop()
  {
      if (cooking())
          stopCooking();
  
      if (preheating())
          stopPreheating();

      if (damper())
          closeDamper();

      if (cooldown())
          stopCooldown();
  
      if (humidification())
          stopHumidification();

  }
  
  void Oven::startCooking()
  {

      if (!cooking())

      {

          if (door())
          {
              paused_ = true;
          }
          else
          {
              paused_ = false;
  
              if (preheating())
                  stopPreheating();

              if (cooldown())
                  stopCooldown();

              cooking_ = true;
              cookingTimer.start();
              interface->startCooking();
          }

  
          emit changed(this);
      }
  }
  
  void Oven::stopCooking()
  {
      if (cooking())
      {
          if (time() > 0)
          {
              paused_ = true;
              setTime(time());
              cookingTimer.stop();
          }
          else
              setTime(0);
  
          cooking_ = false;
          interface->stopCooking();
  
          emit changed(this);
      }
  }
  
  void Oven::startPreheating()
  {
      if (preheatingStartable())
      {

          if (cooking())
              stopCooking();

          preheating_ = true;
          interface->startPreheating();
  
          emit changed(this);
      }
  }
  
  void Oven::stopPreheating()
  {
      if (preheating())
      {
          preheating_ = false;
          interface->stopPreheating();
  
          emit changed(this);

  
          if (paused())
              startCooking();

      }
  }
  
  void Oven::startCooldown()
  {
      if (cooldownStartable())
      {
          if (cooking())
              stopCooking();
  
          cooldown_ = true;
          interface->startCooldown();
  
          emit changed(this);
      }
  }
  
  void Oven::stopCooldown()
  {
      if (cooldown())
      {
          cooldown_ = false;
          interface->stopCooldown();
  
          emit changed(this);
  
          if (paused())
              startCooking();
      }
  }

  void Oven::startHumidification(int secs)

  {
      if (humidificationStartable())
      {

          if (humidificationRepeat)
          {

          }
          else
          {
              humidification_ = true;
              humidificationTimer.start(secs * 1000);
              interface->startHumidification();
  
              emit changed(this);
          }

      }
  }
  
  void Oven::stopHumidification()
  {
      if (humidification())
      {
          humidification_ = false;
          if (humidificationTimer.isActive())
              humidificationTimer.stop();
  
          interface->stopHumidification();
  
          emit changed(this);
      }
  }

  void Oven::repeatHumidification(int runtime, int delay, int count)
  {
      humidificationRepeatInfinitely = count == 0;
      humidificationRepeatRuntime = runtime * 1000;
      humidificationRepeatDelay = delay * 1000;
      humidificationRepeatCount = count;
  
      if (humidificationRepeat)
      {
          if (humidificationRepeatPaused)
          {
              if (humidificationRepeatPausedOnRuntime)
                  humidificationRepeatRemainingTime = humidificationRepeatRuntime;
              else
                  humidificationRepeatRemainingTime = humidificationRepeatDelay;
          }
          else
          {
              runRepeatHumidification();
          }
      }
      else
      {
          humidificationRepeat = true;
  
          if (humidification())
          {
              humidificationRepeatPaused = true;
              humidificationRepeatPausedOnRuntime = false;
              humidificationRepeatRemainingTime = humidificationRepeatDelay;
          }
          else
          {
              humidificationRepeatPaused = false;
              humidificationRepeatRemainingTime = 0;
              runRepeatHumidification();
          }
      }
  }
  
  void Oven::stopRepeatHumidification()
  {
      if (!humidificationRepeat)
          return;
  
      humidificationRepeat = false;
  
      humidificationRepeatRuntimeTimer.stop();
      humidificationRepeatDelayTimer.stop();
  
      if (humidification())
          stopHumidification();
  }
  
  void Oven::pauseRepeatHumidification()
  {
      if (!humidificationRepeat)
          return;
  
      humidificationRepeatPaused = true;
  
      if (humidificationRepeatRuntimeTimer.isActive())
      {
          humidificationRepeatPausedOnRuntime = true;
          humidificationRepeatRemainingTime = humidificationRepeatRuntimeTimer.remainingTime();
          humidificationRepeatRuntimeTimer.stop();
      }
      else
      {
          humidificationRepeatPausedOnRuntime = false;
          humidificationRepeatRemainingTime = humidificationRepeatDelayTimer.remainingTime();
          humidificationRepeatDelayTimer.stop();
      }
  }
  
  void Oven::resumeRepeatHumidification()
  {
      if (!humidificationRepeat || !humidificationRepeatPaused)
          return;
  
      humidificationRepeatPaused = false;
  
      if (humidificationRepeatPausedOnRuntime)
      {
          humidificationRepeatRuntimeTimer.start(humidificationRepeatRemainingTime);
  
          humidification_ = true;
          interface->startHumidification();
          emit changed(this);
      }
      else
      {
          humidificationRepeatDelayTimer.start(humidificationRepeatRemainingTime);
      }
  }
  
  void Oven::runRepeatHumidification()
  {
      if (humidificationRepeatInfinitely || humidificationRepeatCount-- > 0)
      {
          humidificationRepeatRuntimeTimer.start(humidificationRepeatRuntime);
  
          humidification_ = true;
          interface->startHumidification();
          emit changed(this);
      }
  }
  
  void Oven::idleRepeatHumidification()
  {
      humidificationRepeatDelayTimer.start(humidificationRepeatDelay);
  
      humidification_ = false;
      interface->stopHumidification();
      emit changed(this);
  }

  void Oven::openDamper(int secs)

  {

      if (!damper())
      {
          damper_ = true;

          interface->openDamper();

          emit changed(this);
      }

  
      damperTimer.start(secs * 1000);

  }
  
  void Oven::closeDamper()
  {

      if (damper())
      {
          damper_ = false;
          if (damperTimer.isActive())
              damperTimer.stop();
  
          interface->closeDamper();

          emit changed(this);
      }

  }

  void Oven::repeatDamper(int runtime, int delay, int count)
  {
      damperRepeatInfinitely = count == 0;
      damperRepeatRuntime = runtime * 1000;
      damperRepeatDelay = delay * 1000;
      damperRepeatCount = count;
  
      if (damperRepeat)
      {
          if (damperRepeatPaused)
          {
              if (damperRepeatPausedOnRuntime)
                  damperRepeatRemainingTime = damperRepeatRuntime;
              else
                  damperRepeatRemainingTime = damperRepeatDelay;
          }
          else
          {
              runRepeatDamper();
          }
      }
      else
      {
          damperRepeat = true;
  
          if (damper())
          {
              damperRepeatPaused = true;
              damperRepeatPausedOnRuntime = false;
              damperRepeatRemainingTime = damperRepeatDelay;
          }
          else
          {
              damperRepeatPaused = false;
              damperRepeatRemainingTime = 0;
              runRepeatDamper();
          }
      }
  }
  
  void Oven::stopRepeatDamper()
  {
      if (!damperRepeat)
          return;
  
      damperRepeat = false;
  
      damperRepeatRuntimeTimer.stop();
      damperRepeatDelayTimer.stop();
  
      if (damper())
          closeDamper();
  }
  
  void Oven::pauseRepeatDamper()
  {
      if (!damperRepeat)
          return;
  
      damperRepeatPaused = true;
  
      if (damperRepeatRuntimeTimer.isActive())
      {
          damperRepeatPausedOnRuntime = true;
          damperRepeatRemainingTime = damperRepeatRuntimeTimer.remainingTime();
          damperRepeatRuntimeTimer.stop();
      }
      else
      {
          damperRepeatPausedOnRuntime = false;
          damperRepeatRemainingTime = damperRepeatDelayTimer.remainingTime();
          damperRepeatDelayTimer.stop();
      }
  }
  
  void Oven::resumeRepeatDamper()
  {
      if (!damperRepeat || !damperRepeatPaused)
          return;
  
      damperRepeatPaused = false;
  
      if (damperRepeatPausedOnRuntime)
      {
          damperRepeatRuntimeTimer.start(damperRepeatRemainingTime);
  
          damper_ = true;
          interface->closeDamper();
          emit changed(this);
      }
      else
      {
          damperRepeatDelayTimer.start(damperRepeatRemainingTime);
      }
  }
  
  void Oven::runRepeatDamper()
  {
      if (damperRepeatInfinitely || damperRepeatCount-- > 0)
      {
          damperRepeatRuntimeTimer.start(damperRepeatRuntime);
  
          damper_ = true;
          interface->openDamper();
          emit changed(this);
      }
  }
  
  void Oven::idleRepeatDamper()
  {
      damperRepeatDelayTimer.start(damperRepeatDelay);
  
      damper_ = false;
      interface->closeDamper();
      emit changed(this);
  }

  void Oven::setCurrentHumidity(int percentage)
  {
      if (currentHumidity() != percentage)
      {
          currentHumidity_ = percentage;
          emit changed(this);
      }
  }
  
  void Oven::setCurrentTemp(int celsius)
  {
      if (currentTemp() != celsius)
      {
          currentTemp_ = celsius;
          emit changed(this);
      }
  }
  
  void Oven::setCurrentInterTemp(int celsius)
  {
      if (currentInterTemp() != celsius)
      {
          currentInterTemp_ = celsius;

  
          if (isInterTempValid_)
          {
              if (currentInterTemp_ == currentTemp_)
                  isInterTempValid_ = false;
          }
          else
          {
              if (currentInterTemp_ + 20 < currentTemp_)
              {
                  isInterTempValid_ = true;
                  interTempValidTime = QTime::currentTime();
              }
          }

          emit changed(this);
      }
  }

  
  
  
  
  int Oven::maxTemp()
  {
      switch (mode())
      {

      case Define::DryMode:

          return 300;

      case Define::SteamMode:

          return 130;

      case Define::CombiMode:

          return 300;
      default:
          return 0;
      }
  }
  
  int Oven::minTemp()
  {
      switch (mode())
      {

      case Define::DryMode:

          return 30;

      case Define::SteamMode:

          return 30;

      case Define::CombiMode:

          return 30;
      default:
          return 0;
      }
  }
  
  int Oven::maxInterTemp()
  {
      switch (mode())
      {

      case Define::DryMode:

          return 99;

      case Define::SteamMode:

          return 99;

      case Define::CombiMode:

          return 99;
      default:
          return 0;
      }
  }
  
  int Oven::minInterTemp()
  {
      switch (mode())
      {

      case Define::DryMode:

          return 30;

      case Define::SteamMode:

          return 30;

      case Define::CombiMode:

          return 30;
      default:
          return 0;
      }
  }
  
  int Oven::maxFan()
  {
      return 5;
  }
  
  int Oven::minFan()
  {
      return 1;
  }
  
  void Oven::onDoorOpened()
  {
      door_ = true;
  
      emit changed(this);
  
      if (cooking())

      {

          stopCooking();

  
          if (damperRepeat)
              pauseRepeatDamper();

          openDamper(7);
      }

  }
  
  void Oven::onDoorClosed()
  {
      door_ = false;
  
      emit changed(this);

      if (!cooldown() && paused())

          startCooking();

  
      if (damper())
          closeDamper();

  
      if (damperRepeat)
          resumeRepeatDamper();

  }