#include "Button.h"
#include "LEDListener.h"
#include "EventDispatcher.h"

Button button(5);

EventDispatcher eventDispatcher;

LEDListener ledListener1("LED Listener 1");
LEDListener ledListener2("LED Listener 2");
LEDListener ledListener3("LED Listener 3");
LEDListener ledListener4("LED Listener 4");

void setup() {
  Serial.begin(115200);

  
  Serial.println("# SYSTEM # These listeners are LED Listeners waiting for LEDEvents");
  Serial.println((String)"# SYSTEM # " + MAX_QUEUE_LENGTH + " slots available. Let's fill them");
  eventDispatcher.add(&ledListener1);
  eventDispatcher.add(&ledListener2);
  eventDispatcher.add(&ledListener3);

  Serial.println("# SYSTEM # Let's mock an LEDEvent to see if they get received");
  eventDispatcher.emit(LEDEvent());

  Serial.println("# SYSTEM #  Queue should be full, let's try to overfill the queue 4 times");
  eventDispatcher.add(&ledListener4);
  eventDispatcher.add(&ledListener4);
  eventDispatcher.add(&ledListener4);
  eventDispatcher.add(&ledListener4);

  Serial.println("# SYSTEM #  Queue should still be full, lets check no slots were overwritten");
  eventDispatcher.emit(LEDEvent());

  Serial.println("# SYSTEM #  Lets remove() 'LED Listener 2'");
  eventDispatcher.remove(&ledListener2);

  Serial.println("# SYSTEM # Lets do another mock LEDEvent test to see if the empty slot is ignored");
  eventDispatcher.emit(LEDEvent());

  Serial.println("# SYSTEM #  Slot 1 should be our first 'available' slot... Lets see if it gets filled when we add() again" );
  eventDispatcher.add(&ledListener4);
  
  Serial.println("# SYSTEM # And another mock LEDEvent test to see if the new listener receives it too");
  eventDispatcher.emit(LEDEvent());

  Serial.println("# SYSTEM # Lets try to remove a listener who isn't in the list");
  eventDispatcher.remove(&ledListener2);

  Serial.println("# SYSTEM # Lets correctly empty the queue");
  eventDispatcher.remove(&ledListener1);
  eventDispatcher.remove(&ledListener4);
  eventDispatcher.remove(&ledListener3);

  Serial.println("# SYSTEM # and test if there are no listeners to receive the event");
  eventDispatcher.emit(LEDEvent());

  Serial.println("# SYSTEM # Finally lets try to over-empty the queue");
  eventDispatcher.remove(&ledListener1);

  Serial.println("# SYSTEM # Test Complete - Moving to loop");
  Serial.println();

}

void loop() {
  static bool repopulatedListenerQueue = false;
  if (!repopulatedListenerQueue) {
    eventDispatcher.add(&ledListener1);
    eventDispatcher.add(&ledListener2);
    eventDispatcher.add(&ledListener3);
    Serial.println("# SYSTEM # 3 LED listeners added. Button press will send an LEDEvent event");
    repopulatedListenerQueue = true;
  }

  if (button.read())
      eventDispatcher.emit(LEDEvent()); 
}