// https://forum.arduino.cc/t/on-off-with-soft-start/1048649

const int button = 8;    //button on my shield TL2
const int relay1 = 7;    //relay1 this relay on for 3 sec when LED_R + LED_G is light (in shield is YELLOW LED)
const int relay2 = 6;    //relay2 this relay is on when the LED_G is light (in shield is BLUE LED)
const int led_R = 5;     //this LED light when is START mode or OFF mode
const int led_G = 4;     //this LED ligh when is START mode or ON mode

enum { Off = LOW, On = HIGH };  // relay on when HIGH
int buttonState;
# define RelayPeriod     5000    // how long to relay1 is ON

unsigned char state;
# define OFF        0
# define STARTING   1
# define RUNING     2

void setup () {
    Serial.begin(115200);
    Serial.println("soft  start  world!\n");

  pinMode (button, INPUT_PULLUP);

  pinMode (relay1, OUTPUT);
  pinMode (relay2, OUTPUT);
  pinMode (led_R, OUTPUT);
  pinMode (led_G, OUTPUT);

  digitalWrite (relay1, Off);
  digitalWrite (relay2, Off);
  digitalWrite (led_R, On);
  digitalWrite (led_G, Off);
  buttonState = digitalRead (button);

  state = OFF;      // the machine is off.
}

void loop () {
    unsigned char timesUp;
    unsigned char buttonEvent;
    unsigned char releaseEvent;

    unsigned long now = millis ();
    unsigned char buttonIs = digitalRead (button);  //  LOW = pressed here

// INPUT (and timer(s))

    buttonEvent = 0;    // innocent until proven guilty
    releaseEvent = 0;   // auch
    timesUp = 0;        // auch - und es verwenden oder verlieren

    static unsigned long lastButtonTime;
    if (now - lastButtonTime > 20) {
        if (buttonState != buttonIs) {
            buttonState = buttonIs;

            if (buttonIs == LOW) buttonEvent = 1;
            if (buttonIs == HIGH) releaseEvent = 1;
            lastButtonTime = now;
        }
    }

    static unsigned long startStartTime;
    if (now - startStartTime > RelayPeriod) timesUp = 1;

// PROCESS

    switch (state) {
    case OFF :
        if (buttonEvent) {
            startStartTime = now;
            state = STARTING;
        }
        break;
    
    case STARTING :
        if (timesUp) state = RUNING;
        if (buttonEvent)
            state = OFF;

        break;
    
    case RUNING :
        if (buttonEvent)
            state = OFF;
 
        break;
    }

// OUTPUT

    switch (state) {
    case OFF :
        digitalWrite (relay1, Off);
        digitalWrite (relay2, Off);
        digitalWrite (led_G, Off);
        digitalWrite (led_R, On);
        digitalWrite (led_G, Off); // or... make it wink:
//        digitalWrite(led_G, (millis() & 0x3ff) > 960 ? On : Off);

        break;
    
    case STARTING :
        digitalWrite (relay1, On);
        digitalWrite (relay2, Off);
        digitalWrite (led_R, On);  // or... make it blink:
//        digitalWrite (led_R, millis() & 0x100 ? On : Off);

        digitalWrite (led_G, On);

        break;
    
    case RUNING :
        digitalWrite (relay1, Off);
        digitalWrite (relay2, On);
//        digitalWrite (led_R, On);
        digitalWrite (led_R, Off);
        digitalWrite (led_G, On);

        break;
    }
}

/*

        if (releaseEvent) state = RUNING;










*/

/*
      if (timesUp) {
          digitalWrite (led_G, Off);
          state = OFF;
      }

    if (buttonEvent) {
        startStartTime = now;
        state = RUNING;
    }

    if (state == RUNING) digitalWrite(led_G, millis() & 0x100 ? On : Off);
*/

/*
    switch (state) {
    case OFF :
        break;
    
    case STARTING :
        break;
    
    case RUNNING :
        break;
    }

    switch (state) {
    case OFF :
        break;
    
    case STARTING :
        break;
    
    case RUNING :
        break;
    }




}

void testLoop1() {
    static unsigned long startStartTime;
    if (now - startStartTime > RelayPeriod) timesUp = 1;

      if (timesUp) {
          digitalWrite (led_G, Off);
          state = OFF;
      }

    if (buttonEvent) {
        startStartTime = now;
        state = RUNING;
    }

    if (state == RUNING) digitalWrite(led_G, millis() & 0x100 ? On : Off);
}

void testLoop0() {
    if (timesUp) digitalWrite (led_G, Off);


    if (buttonEvent) {
        startStartTime = now;
        digitalWrite (led_G, On);
    }

}

*/


/*

    // check for button press
    byte but = digitalRead (button);
    if (buttonState != but) {
        buttonState = but;
        delay (25);                         // debounce

        if (LOW == but)  {

            if (On == digitalRead (relay1))  {
                digitalWrite (relay1, Off);
                digitalWrite (relay2, Off);
                relayState = 0;
                digitalWrite (led_G, Off);
                digitalWrite (led_R, On);
            }
            else  {
                digitalWrite (relay1, On);
                digitalWrite (relay2, Off);
                digitalWrite (led_R, On);
                digitalWrite (led_G, On);
                relayState = 1;
                msecRelay = msec;
            }
        }
    }
    if (relayState && (msec - msecRelay) >= RelayPeriod)  {
        // turn off
        digitalWrite (relay1, Off);
        digitalWrite (relay2, On);
        digitalWrite (led_G, On);
        digitalWrite (led_R, Off);
        relayState = 0;
    }
}
*/