#ifdef ENABLE_SONOFF

/*
 * Interface with other modules
 */
void newcmd(String cmd) {
  cmd.toLowerCase();
  if(cmd.equals("off")) {
    PRINTLN_SERIAL("Lights off");
  }
  if(cmd.equals("on")) {
    PRINTLN_SERIAL("Lights on");
  }
}

int sonoff_buttontoggle = 0;   // counter for the number of button presses
int sonoff_buttonstate = LOW;         // current state of the button
int sonoff_lastbuttonstate = LOW;     // previous state of the button

/*
 * Setup and loop code. Be cooperative! No delays, timers.
 */
 
void sonoff_setup() {
  PRINTLN_SERIAL("initialising module Sonoff");
    
  pinMode(SONOFF_LED, OUTPUT);      // Note that this LED is powered when voltage is LOW
  digitalWrite(SONOFF_LED, HIGH);   // turn the LED off (HIGH is the voltage level)
  pinMode(SONOFF_RELAY, OUTPUT);      // Note that this relay is powered when voltage is HIGH    
  digitalWrite(SONOFF_RELAY, LOW);   // turn the relay off (HIGH is the voltage level)
}

void sonoff_loop() {
  // This is a matter of last resort kind of thing: the built-in button will toggle power on or off, regardless of MQTT or network availability
  // As good measure, we might try reporting some kind of state when connecting later on. @@@FIXME@@@
   
  // read the pushbutton input pin:
  sonoff_buttonstate = digitalRead(SONOFF_BUTTON);

  // compare the buttonState to its previous state
  if (sonoff_buttonstate != sonoff_lastbuttonstate) {
    // if the state has changed, increment the counter
    if (sonoff_buttonstate == LOW) {
      // if the current state is LOW then the button went from off to on:
      sonoff_buttontoggle = 1-sonoff_buttontoggle;
      PRINTLN_SERIAL("Button pressed");
      if (sonoff_buttontoggle == 1) {
        newcmd("on");
      } else {
        newcmd("off");
      }
    } else {
      // if the current state is LOW then the button went from on to off:
      PRINTLN_SERIAL("Button released");
    }
    // Delay a little bit to avoid bouncing
    delay(50); // @@@FIXME@@@ delays are undesirable!
  }
  // save the current state as the last state, for next time through the loop
  sonoff_lastbuttonstate = sonoff_buttonstate;

}

#endif