byte auto_ampel_gruen = 13;
byte auto_ampel_gelb = 6;
byte auto_ampel_rot = 7;

byte fuss_ampel_gruen = 11;
byte fuss_ampel_rot = 10;

bool button0read = false;
bool button0on = false;
bool switch0 = false;
bool ampel_variable = true;

unsigned long button0millis = 0;
unsigned long led0millis = 0;
unsigned long issue0millis = 0;

byte ampel_state;

void setup() {
  pinMode(auto_ampel_gruen, OUTPUT);
  pinMode(auto_ampel_gelb, OUTPUT);
  pinMode(auto_ampel_rot, OUTPUT);

  pinMode(fuss_ampel_gruen, OUTPUT);
  pinMode(fuss_ampel_rot, OUTPUT);

  pinMode(12, INPUT_PULLUP);
  pinMode(5, INPUT_PULLUP);
}

void loop() {
  unsigned long currentMillis = millis();
  unsigned long elapsedtime = currentMillis - led0millis;
  button0read = digitalRead(12);
  byte button0issue = digitalRead(5);

  if (button0read == LOW) {
    button0millis = currentMillis;
  }

  if (button0read == HIGH && button0on == false && (currentMillis - button0millis > 20)) {
    button0on = true;
  }

  if (button0read == LOW && button0on == true) {
    button0on = false;
    switch0 = !switch0;
    led0millis = currentMillis;
  }

  if (switch0) {
    // Update ampel_state based on elapsed time
    if (elapsedtime <= 3000 && ampel_variable == true) ampel_state = 1;
    else if (elapsedtime <= 6000 && ampel_variable == true) ampel_state = 2;
    else if (elapsedtime <= 9000 && ampel_variable == true) ampel_state = 3;
    else if (elapsedtime <= 12000 && ampel_variable == true) ampel_state = 4;
    else if (elapsedtime <= 15000 && ampel_variable == true) ampel_state = 5;
    else if (elapsedtime <= 18000 && ampel_variable == true) ampel_state = 6;
    else if (elapsedtime <= 21000 && ampel_variable == true) ampel_state = 7;

    else 
    {
      led0millis = currentMillis; // Reset timer for new cycle
      ampel_state = 1; // Restart cycle from state 1
    }

    if (button0issue == false)
    {
      ampel_variable = false;
      ampel_state = 8;
    }
    else
    {
      ampel_variable = true;
    }

    switch (ampel_state) {
      case 1:
        digitalWrite(auto_ampel_gruen, HIGH);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, LOW);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

      case 2:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, HIGH);
        digitalWrite(auto_ampel_rot, LOW);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

      case 3:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, HIGH);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

      case 4:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, HIGH);
        digitalWrite(fuss_ampel_gruen, HIGH);
        digitalWrite(fuss_ampel_rot, LOW);
        break;

      case 5:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, HIGH);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

      case 6:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, HIGH);
        digitalWrite(auto_ampel_rot, HIGH);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

      case 7:
        digitalWrite(auto_ampel_gruen, HIGH);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, LOW);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, HIGH);
        break;

        
       case 8:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_rot, LOW);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, LOW);

      if (millis() - issue0millis > 500)
      {
       digitalWrite(auto_ampel_gelb, HIGH);
      }

      if (millis() - issue0millis > 1000)
      {
       digitalWrite(auto_ampel_gelb, LOW);
       issue0millis = millis();
      }
        break;


      default:
        digitalWrite(auto_ampel_gruen, LOW);
        digitalWrite(auto_ampel_gelb, LOW);
        digitalWrite(auto_ampel_rot, LOW);
        digitalWrite(fuss_ampel_gruen, LOW);
        digitalWrite(fuss_ampel_rot, LOW);
        break;
    }
  } else {
    digitalWrite(auto_ampel_gruen, LOW);
    digitalWrite(auto_ampel_gelb, LOW);
    digitalWrite(auto_ampel_rot, LOW);
    digitalWrite(fuss_ampel_gruen, LOW);
    digitalWrite(fuss_ampel_rot, LOW);
  }
}