/*
  Forum: Private Message
  Wokwi: https://wokwi.com/projects/437469778645018625

  State Machine ohne case-interne Schleifen!

*/

// Eingang Pins setzen
const int pushButton_green = 2;
const int pushButton_red = 3;

// Ausgang Pins setzen
const int ledPin_green = 7;
const int ledPin_red = 4;
const int ledPin_blue = 5;
const int ledPin_orange = 6;
const int nclaueftpin = 8;
const int ncstehtpin = 9;

int i = 0;


// Case Nummern setzen
enum {NC_Wartend, NC_Start, NC_Stopp, NC_Laeuft, NC_Beladen, NC_Entladen} NcStatus = NC_Wartend;


// Unterprogramme

class btClass {
  private:
    byte pin;
    byte state = LOW;
    byte lastState = LOW;
    unsigned long lastChange = 0;
  public:
    void init(byte aPin) {
      pin = aPin;
      pinMode(pin, INPUT);
    }
    boolean pressed() {
      byte actState = digitalRead(pin);
      if (actState != lastState) {
        lastChange = millis();
        lastState = actState;
      }
      if (state != lastState && millis() - lastChange > 30) {
        state = lastState;
        return state;  // Returniert true, wenn der pin-State HIGH ist!!!
      }
      return false;
    }
};

btClass stoppButton;
btClass startButton;

void Warten() {
  if (startButton.pressed()) {
    NcStatus = NC_Start;
    i = 0;
    digitalWrite(ledPin_red, LOW);
    digitalWrite(ledPin_green, HIGH);
    Serial.println("NC Start - Rot aus  - Grün an");
  }
}


void NcStart() {
  delay(1);
  i++;
  if (i >= 2000) {
    NcStatus = NC_Beladen;
    i = 0;
    digitalWrite(ledPin_blue, HIGH);
    Serial.println("NC Beladen - Blau an");
  }
}


void NcBeladen() {
  delay(1);
  i++;
  if (i >= 8000) {
    NcStatus = NC_Laeuft;
    int i = 0;
    digitalWrite(ledPin_blue, LOW);
    digitalWrite(nclaueftpin, HIGH);
    Serial.println("NC Läuft - blau aus, grün an,  NC pin Läuft an ");
  }
}


void NcLaeuft() {
  delay(1);
  i++ ;
  if (i >= 15000) {
    NcStatus = NC_Entladen;
    int i = 0;
    digitalWrite(nclaueftpin, LOW);
    digitalWrite(ledPin_orange, HIGH);
    Serial.println("NC Entladen - Orange an, nc läuft pin an ");
  }
}


void NcEntladen() {
  delay(1);
  i++ ;
  if (i >= 8000) {
    prepareStopp();
  }
}

void prepareStopp() {
  NcStatus = NC_Stopp;
  int i = 0;
  digitalWrite(ledPin_orange, LOW);
  digitalWrite(ledPin_blue, LOW);
  digitalWrite(ledPin_green, LOW);
  digitalWrite(nclaueftpin, LOW);
  digitalWrite(ledPin_red, HIGH);
  digitalWrite(ncstehtpin, HIGH);
  Serial.println("NC Stopp - orange aus, blau aus, grün aus, rot an");
}


void NcStopp() {
  delay(1);
  i++;
  if (i >= 100) {
    NcStatus = NC_Wartend;
  }
}



// Setup

void setup() {

  Serial.begin(9600);

  // Pin Modus zuweisung Inputs
  startButton.init(pushButton_green);
  stoppButton.init(pushButton_red);

  // Pin Modus zuweisung Outputs
  pinMode(ledPin_green, OUTPUT);
  pinMode(ledPin_red, OUTPUT);
  pinMode(ledPin_blue, OUTPUT);
  pinMode(ledPin_orange, OUTPUT);
  pinMode(nclaueftpin, OUTPUT);
  pinMode(ncstehtpin, OUTPUT);


  digitalWrite(ledPin_red, HIGH);

}


// Hauptprogramm

void loop()
{
  if (stoppButton.pressed()) {
    prepareStopp();
  }

  switch (NcStatus)
  {
    case NC_Wartend:
      Warten();
      break;

    case NC_Start:
      NcStart();
      break;

    case NC_Stopp:
      NcStopp();
      break;

    case NC_Laeuft:
      NcLaeuft();
      break;

    case NC_Beladen:
      NcBeladen();
      break;

    case NC_Entladen:
      NcEntladen();
      break;

  }
}