const int Vert = 8;
const int Orange = 9;
const int Rouge = 10;

const int VertPieton = 5;
const int RougePieton = 6;

const int Buzzer = 4;
const int BoutonPieton = 2;

int etatFeu = 0;

unsigned long precedent = 0;

// Etats (0=Vert Voiture/1=Orange Voiture/2=Rouge Voiture/3=Passage Pieton)

bool demandePieton =false;

unsigned long precedentBuzzer =0;
bool etatBuzzer =false;

void afficherEtat()
{
  Serial.print("Etat feu = ");
  Serial.println(etatFeu);
}

void setup() {
  // put your setup code here, to run once:
  pinMode(Vert, OUTPUT);
  pinMode(Orange, OUTPUT);
  pinMode(Rouge, OUTPUT);

  pinMode(VertPieton, OUTPUT);
  pinMode(RougePieton, OUTPUT);

  pinMode(Buzzer, OUTPUT);

  pinMode(BoutonPieton, INPUT_PULLUP);

  Serial.begin(9600);

  afficherEtat();
}

void loop() {
  // put your main code here, to run repeatedly:
  //Demande pieton
  if(digitalRead(BoutonPieton) == LOW)
  {
    demandePieton = true;
  }

  if(etatFeu == 0) // Etat Feu Voiture Vert
  {
    digitalWrite(Vert,HIGH);
    digitalWrite(Orange, LOW);
    digitalWrite(Rouge, LOW);

    digitalWrite(VertPieton, LOW);
    digitalWrite(RougePieton, HIGH);

    digitalWrite(Buzzer, LOW);

    if(millis()- precedent >= 10000)
    {
      etatFeu = 1;
      precedent = millis();
      afficherEtat();
    }
  }

  else if(etatFeu == 1) // Etat Feu Voiture Orange
  {
    digitalWrite(Vert,LOW);
    digitalWrite(Orange, HIGH);
    digitalWrite(Rouge, LOW);

    digitalWrite(VertPieton, LOW);
    digitalWrite(RougePieton, HIGH);

    digitalWrite(Buzzer, LOW);

    if(millis()- precedent >= 5000)
    {
      etatFeu = 2;
      precedent = millis();
      afficherEtat();
    }
  }

  else if(etatFeu == 2)  // Etat Feu Voiture Rouge
  {
    digitalWrite(Vert,LOW);
    digitalWrite(Orange, LOW);
    digitalWrite(Rouge, HIGH);

    digitalWrite(VertPieton, LOW);
    digitalWrite(RougePieton, HIGH);

    digitalWrite(Buzzer, LOW);

    if(millis()- precedent >= 10000)
    {
      if(demandePieton == true)
      {
        etatFeu = 3;
      }
      else
      {
        etatFeu = 0;
      }
      //etatFeu = 0;
      precedent = millis();
      afficherEtat();
    }
  }

    

  else if(etatFeu == 3)
  {  
    digitalWrite(Vert,LOW);
    digitalWrite(Orange, LOW);
    digitalWrite(Rouge, HIGH);

    digitalWrite(VertPieton, HIGH);
    digitalWrite(RougePieton, LOW);

    if(millis() - precedentBuzzer >=100)
    {
      etatBuzzer = !etatBuzzer;
      precedentBuzzer = millis();

      digitalWrite(Buzzer,etatBuzzer);
    }

    if(millis() - precedent >=5000)
    {
      demandePieton = false;

      digitalWrite(Buzzer, LOW);
      etatBuzzer = false;

      etatFeu = 0;
      precedent = millis();
      afficherEtat();
    }
  }

  if(digitalRead(BoutonPieton) == LOW)
    {
      demandePieton = true;
    }
//    else
//    {
//      demandePieton = false;
//    }
}