Servo myservo;
int servoPin = A5;  // variable to store servo pin
int speakerPin = D0; // variable to store speaker pin

// create an array for the notes in the melody:
// C4,G3,G3,A3,G3,0,B3,C4
int melody[] = {1908,2551,2551,2273,2551,0,2024,1908}; 
// create an array for the duration of notes
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {4,8,8,4,4,4,4,4};

// setup function
void setup()
{
    myservo.attach(servoPin);   // attach servo pin
    Particle.function("feed",triggerFeed);  // declare feed funtion
    pinMode(speakerPin, OUTPUT);     // attach speaker pin
}

void loop()
{
    //do nothing in loop
}

// feed function
// since feed can be invoked by 3 different methods (button, voice, schedule)
// we need to account for 3 different commands
int triggerFeed(String command)
{
	// bfeed is fed by the button
	// sfeed is fed by schedule
	// vfeed is fed by voice command
   if (command=="bfeed" || command=="sfeed" || command=="vfeed")
    {
        for (int i=1; i<=3; i++){
            playNotes();
        }
        myservo.write(0);   //start turning the servo
        delay(330);     //how long the turn turns in ms (may need some adjusting)
        myservo.write(92);  //stop turning servo
        setTime();
        if (command=="bfeed"){
            Particle.publish("Bella fed by button",Time.timeStr(),PRIVATE);
        }else if (command=="sfeed"){
            Particle.publish("Bella fed by schedule",Time.timeStr(),PRIVATE);
        }else if (command=="vfeed"){
            Particle.publish("Bella fed by voice command",Time.timeStr(),PRIVATE);
        }
        return 1;
    }
}

// play melody function
void playNotes()
{
    // iterate over the notes of the melody:
    for (int thisNote = 0; thisNote < 8; thisNote++) {      // to calculate the note duration, take one second
      // divided by the note type.
      //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
      int noteDuration = 1000/noteDurations[thisNote];
      tone(speakerPin, melody[thisNote],noteDuration);      // the note's duration + 30%
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      // stop the tone playing
      noTone(speakerPin);
    }
}

// time function sets the event time to CST which is UTC-5 during daylight savings, or else UTC-6
void setTime()
{
    int dst=Time.isDST(); // check if daylight savings time is in effect
    if (dst=1){
        Time.zone(-5); //set timezone to CDT
    }else Time.zone(-6); //set timezone CST
}