//Nikolaos Babetas


#include <Servo.h>
Servo myservo;  
int pos = 180;  

int LDR_Pin = A0;    
int ledPin = 13;      
int LightValue = 0; 
 
int LightThreshold = 900;


#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
#define REST      0

int tempo = 140;
int buzzer = 11;
int melody[] = {

  // Take on me, by A-ha
  // Score available at https://musescore.com/user/190926/scores/181370
  // Arranged by Edward Truong

  NOTE_FS5,8, NOTE_FS5,8,NOTE_D5,8, NOTE_B4,8, REST,8, NOTE_B4,8, REST,8, NOTE_E5,8, 
  REST,8, NOTE_E5,8, REST,8, NOTE_E5,8, NOTE_GS5,8, NOTE_GS5,8, NOTE_A5,8, NOTE_B5,8,
  NOTE_A5,8, NOTE_A5,8, NOTE_A5,8, NOTE_E5,8, REST,8, NOTE_D5,8, REST,8, NOTE_FS5,8, 
  REST,8, NOTE_FS5,8, REST,8, NOTE_FS5,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,8,
  NOTE_FS5,8, NOTE_FS5,8,NOTE_D5,8, NOTE_B4,8, REST,8, NOTE_B4,8, REST,8, NOTE_E5,8, 
  
  REST,8, NOTE_E5,8, REST,8, NOTE_E5,8, NOTE_GS5,8, NOTE_GS5,8, NOTE_A5,8, NOTE_B5,8,
  NOTE_A5,8, NOTE_A5,8, NOTE_A5,8, NOTE_E5,8, REST,8, NOTE_D5,8, REST,8, NOTE_FS5,8, 
  REST,8, NOTE_FS5,8, REST,8, NOTE_FS5,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,8,
  NOTE_FS5,8, NOTE_FS5,8,NOTE_D5,8, NOTE_B4,8, REST,8, NOTE_B4,8, REST,8, NOTE_E5,8, 
  REST,8, NOTE_E5,8, REST,8, NOTE_E5,8, NOTE_GS5,8, NOTE_GS5,8, NOTE_A5,8, NOTE_B5,8,
  
  NOTE_A5,8, NOTE_A5,8, NOTE_A5,8, NOTE_E5,8, REST,8, NOTE_D5,8, REST,8, NOTE_FS5,8, 
  REST,8, NOTE_FS5,8, REST,8, NOTE_FS5,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,8,
  
};


int notes = sizeof(melody) / sizeof(melody[0]) / 2;

int wholenote = (60000 * 4) / tempo;

int divider = 0, noteDuration = 0;



void setup() {
  // put your setup code here, to run once:

  Serial.begin(9600);
  myservo.attach(5);
  myservo.write(pos);
  
  //myservo.detach();
}

void loop() {
  // put your main code here, to run repeatedly:


  LightValue = analogRead(LDR_Pin);
    Serial.println(LightValue);

    if ( LightValue <  LightThreshold)
    {
for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {

    // calculates the duration of each note
    divider = melody[thisNote + 1];
    if (divider > 0) {
      // regular note, just proceed
      noteDuration = (wholenote) / divider;
    } else if (divider < 0) {
      // dotted notes are represented with negative durations!!
      noteDuration = (wholenote) / abs(divider);
      noteDuration *= 1.5; // increases the duration in half for dotted notes
    }

    // we only play the note for 90% of the duration, leaving 10% as a pause
    tone(buzzer, melody[thisNote], noteDuration * 0.9);

    // Wait for the specief duration before playing the next note.
    delay(noteDuration);

    // stop the waveform generation before the next note.
    noTone(buzzer);

    
  }
  LightValue = analogRead(LDR_Pin);
  if ( LightValue < LightThreshold)
  {
    //myservo.attach(5);

 

  
  for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }

  delay(500);

    for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
  
  
    
  }
  delay(300000);
                       // waits 15ms for the servo to reach the position
  }
  
  }