#ifndef MODE_BASE_H
#define MODE_BASE_H

#define TIMER_COUNT 10

#include "BASICS.h"
#include "display/Display.h"
#include "Timer.h"

class ModeBase {

private:

    Timer *timers[TIMER_COUNT]{};

    uint8_t timerCount = 0;

protected:

    Display *display;

public:

    explicit ModeBase(Display *display) :
        display(display) {
      for (Timer **timer = timers; timer < timers + TIMER_COUNT; timer++) {
        *timer = nullptr;
      }
    }

    virtual ~ModeBase() {
      destroyAllTimers();
    };

    virtual const char *getName() = 0;

    void step(microseconds_t dt) {
      for (Timer **timer = timers; timer < timers + TIMER_COUNT; timer++) {
        if (*timer != nullptr) {
          (*timer)->step(dt);
        }
      }
      doStep(dt);
    }

protected:

    virtual void doStep(microseconds_t dt) {};

    Timer *createTimer(long long millisecondsInterval, Timer::Callback callback) {
      for (Timer **timer = timers; timer < timers + TIMER_COUNT; timer++) {
        if (*timer == nullptr) {
          *timer = new Timer(millisecondsInterval * 1000, callback);
          timerCount++;
          return *timer;
        }
      }
      Serial.printf("ERROR: Cannot create more than %d timers!\n", TIMER_COUNT);
      return nullptr;
    }

    bool destroyTimer(Timer *t) {
      for (Timer **timer = timers; timer < timers + TIMER_COUNT; timer++) {
        if (*timer == t) {
          _destroyTimer(timer);
          return true;
        }
      }
      Serial.printf("ERROR: No such timer.\n");
      return false;
    }

    void destroyAllTimers() {
      for (Timer **timer = timers; timer < timers + TIMER_COUNT; timer++) {
        if (*timer != nullptr) {
          _destroyTimer(timer);
        }
      }
    }

private:

    void _destroyTimer(Timer **timer) {
      timerCount--;
      free(*timer);
      *timer = nullptr;
    }

};

#endif