// This #include statement was automatically added by the Particle IDE.

#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44
#define NOTE_FS1 46
#define NOTE_G1  49
#define NOTE_GS1 52
#define NOTE_A1  55
#define NOTE_AS1 58
#define NOTE_B1  62
#define NOTE_C2  65
#define NOTE_CS2 69
#define NOTE_D2  73
#define NOTE_DS2 78
#define NOTE_E2  82
#define NOTE_F2  87
#define NOTE_FS2 93
#define NOTE_G2  98
#define NOTE_GS2 104
#define NOTE_A2  110
#define NOTE_AS2 117
#define NOTE_B2  123
#define NOTE_C3  131
#define NOTE_CS3 139
#define NOTE_D3  147
#define NOTE_DS3 156
#define NOTE_E3  165
#define NOTE_F3  175
#define NOTE_FS3 185
#define NOTE_G3  196
#define NOTE_GS3 208
#define NOTE_A3  220
#define NOTE_AS3 233
#define NOTE_B3  247
#define NOTE_C4  262
#define NOTE_CS4 277
#define NOTE_D4  294
#define NOTE_DS4 311
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_FS4 370
#define NOTE_G4  392
#define NOTE_GS4 415
#define NOTE_A4  440
#define NOTE_AS4 466
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_CS5 554
#define NOTE_D5  587
#define NOTE_DS5 622
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_FS5 740
#define NOTE_G5  784
#define NOTE_GS5 831
#define NOTE_A5  880
#define NOTE_AS5 932
#define NOTE_B5  988
#define NOTE_C6  1047
#define NOTE_CS6 1109
#define NOTE_D6  1175
#define NOTE_DS6 1245
#define NOTE_E6  1319
#define NOTE_F6  1397
#define NOTE_FS6 1480
#define NOTE_G6  1568
#define NOTE_GS6 1661
#define NOTE_A6  1760
#define NOTE_AS6 1865
#define NOTE_B6  1976
#define NOTE_C7  2093
#define NOTE_CS7 2217
#define NOTE_D7  2349
#define NOTE_DS7 2489
#define NOTE_E7  2637
#define NOTE_F7  2794
#define NOTE_FS7 2960
#define NOTE_G7  3136
#define NOTE_GS7 3322
#define NOTE_A7  3520
#define NOTE_AS7 3729
#define NOTE_B7  3951
#define NOTE_C8  4186
#define NOTE_CS8 4435
#define NOTE_D8  4699
#define NOTE_DS8 4978
 
// SETTINGS
int piezo = D4; //Speaker or Piezo buzzer on this pin
boolean continuePlaying = true; //Set to true to continuously play (otherwise, false)
int continueDelay = 0; //Time to wait before continuing playing
int fsrPin = A0;
int fsrReading = 0;
int ledPin = D2;
int ledBrightness = 0;
Servo feeling;
int servopin = A1;
int servopos=0;
int potPin = A2;
int potReading =0;
int lightPin = D3;
int lightbright =0;
int soundPin = D5;
int buttonPin = D6;
 
 //melody for fur elise

int melody[] = {
  NOTE_E5, NOTE_DS5, NOTE_E5, NOTE_DS5,
  NOTE_E5, NOTE_B4, NOTE_D5, NOTE_C5,
  NOTE_A4, NOTE_C4, NOTE_E4, NOTE_A4,
  NOTE_B4, NOTE_E4, NOTE_GS4, NOTE_B4,
  
  NOTE_C5, NOTE_E4, NOTE_E5, NOTE_DS5,
  NOTE_E5, NOTE_DS5, NOTE_E5, NOTE_B4,
  NOTE_D5, NOTE_C5, NOTE_A4, NOTE_C4,
  NOTE_E4, NOTE_A4, NOTE_B4, NOTE_E4,
  
  NOTE_C5, NOTE_B4, NOTE_A4, NOTE_B4,
  NOTE_C5, NOTE_D5, NOTE_E5, NOTE_G4,
  NOTE_F5, NOTE_E5, NOTE_D5, NOTE_F4,
  NOTE_E5, NOTE_D5, NOTE_C5, NOTE_E4,
  
  NOTE_D5, NOTE_C5, NOTE_B4, NOTE_E4,
  NOTE_E5, NOTE_E4, NOTE_E5, NOTE_E4,
  NOTE_E5, NOTE_E4, NOTE_E5, NOTE_DS4,
  NOTE_E5, NOTE_D4, NOTE_E5, NOTE_DS4,
  
  NOTE_E5, NOTE_B4, NOTE_D5, NOTE_C5,
  NOTE_A4, NOTE_C4, NOTE_E4, NOTE_A4,
  NOTE_B4, NOTE_E4, NOTE_GS4, NOTE_B4,
  NOTE_C5, NOTE_E4, NOTE_E5, NOTE_DS5,

  NOTE_E5, NOTE_DS5, NOTE_E5, NOTE_B4,
  NOTE_D5, NOTE_C5, NOTE_A4, NOTE_C4,
  NOTE_E4, NOTE_A4, NOTE_B4, NOTE_E4,
  NOTE_C5, NOTE_B4, NOTE_A4, 0,
  
};

// Main tempo of 'Fur Elise'
int tempo[] = {
  9, 9, 9, 9,
  9, 9, 9, 9,
  3, 9, 9, 9,
  3, 9, 9, 9,

  3, 9, 9, 9,
  9, 9, 9, 9,
  9, 9, 3, 9,
  9, 9, 3, 9,

  9, 9, 3, 9,
  9, 9, 3, 9,
  9, 9, 3, 9,
  9, 9, 3, 9,

  9, 9, 9, 9,
  9, 9, 9, 9,
  9, 9, 9, 9,
  9, 9, 9, 9,

  9, 9, 9, 9,
  3, 9, 9, 9,
  3, 9, 9, 9,
  3, 9, 9, 9,

  9, 9, 9, 9,
  9, 9, 3, 9,
  9, 9, 3, 8,
  8, 8, 1, 9,
};

void setup() {
  pinMode(lightPin, OUTPUT);   
  pinMode(soundPin,OUTPUT);
    Spark.variable("pot", potReading );
  pinMode(ledPin, OUTPUT);    
  Particle.variable("force", &fsrReading, INT);
  feeling.attach(A1);
   pinMode(piezo, OUTPUT);  
pinMode( buttonPin , INPUT_PULLUP);
}

void loop() {
    
     int buttonState = digitalRead( buttonPin ); //checking button state
  
  
 
   potReading = analogRead(potPin); //checking potentiometer state 
      ledBrightness = map(potReading, 0, 4095, 0, 255);
       analogWrite(lightPin, ledBrightness);
       delay(100);
       
    
    fsrReading = analogRead(fsrPin);
if (fsrReading>2500) //if there is sufficient light
    { feeling.write(90);
  //  song();
    digitalWrite(ledPin, HIGH);
 
    }
    
    else { //light not sufficient

analogWrite(ledPin, 255);
    delay(100);
    analogWrite(ledPin, 0);
    delay(100);
    analogWrite(ledPin, 255);
    delay(100);
    analogWrite(ledPin, 0);
    delay(100);
    analogWrite(ledPin, 255);
    delay(100);
    analogWrite(ledPin, 0);
    delay(100);
feeling.write(10);}


    fsrReading=0; 
    
    
     if( buttonState == LOW ) //button to play music
 
    {
     feeling.write(180);
       playnotes(1);
       musicupdate();
      
  }
  
  else{
    // otherwise
    // turn the LED Off
    noTone(piezo);
    
  }
  
     lightupdate();

}

int song = 0;

void playnotes(int s) { //function to play melody according to tempo
  
  song = s;
  
  if (song == 1){
 
    
    int size = sizeof(melody) / sizeof(int);
    
    for (int thisNote = 0; thisNote < size; thisNote++) {
      int noteDuration = 1000 / tempo[thisNote];
      buzz(piezo, melody[thisNote], noteDuration);
      
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      
      buzz(piezo, 0, noteDuration);
 
    }
  }
}
 
void buzz(int targeting, long frequency, long length) {
  
  digitalWrite(6, HIGH);
  
  long delayValue = 1000000 / frequency / 2;
  long numCycles = frequency * length / 1000;
  
  for (long i = 0; i < numCycles; i++) {
    digitalWrite(targetPin, HIGH);
    delayMicroseconds(delayValue);
    digitalWrite(soundPin,HIGH);
    digitalWrite(targetPin, LOW);
    delayMicroseconds(delayValue);
       digitalWrite(soundPin,LOW);
  }
  
  digitalWrite(6, LOW);
  
}

int last_published = -1;


void lightupdate(  ){ //sending photocell data to spreadsheet

  // check if 1 minute has elapsed
	if( last_published + 60000 < millis() ){
		Particle.publish( "lightupdate", "Nice and sunny!"+String(fsrReading) );
		last_published = millis();
	}

}

void musicupdate(  ){ //sending thank you message as an sms

  // check if 1 minute has elapsed
	if( last_published + 60000 < millis() ){
		Particle.publish( "musicupdate","Thank you for spending time with me!");
		last_published = millis();
	}

}