#include "pitches.h"
#include "LowPower.h"
#include <CapacitiveSensor.h>

const int touchPins[] = {12, 8, 7, 6, 5, 4, 3, 2};
const int buttonPins[] = {12, 8, 7, 6, 5, 4, 3, 2};
const int buttonTones[] = {
  NOTE_G4, NOTE_F4, NOTE_E4, NOTE_D4,
  NOTE_C4, NOTE_B4, NOTE_A4, NOTE_G3
};
const int speakerPin = 9;
const int ON_OFFbutton = A0;

const int numTones = sizeof(buttonPins) / sizeof(buttonPins[0]);
 bool buttonPressed = false;
 bool ledFlag = true;
 bool A0_Flag = false;
 int touchCalibration = 6;  // valibration value between 1 & 15

 static bool newNotePlayed = false;
 int lastNote = 0;
 int currentNote = 0;
 

 // ********  functions out of loop *************
 /*
 void captouchsence() {  //  function not compiling
  bool touchDetected = false;
  for (int i = 0; i < numTones; i++) {
    int capacitance = sensors[i].capacitance();
    if (capacitance > threshold) { // Adjust the threshold value
      touchDetected = true;
      tone(speakerPin, buttonTones[i]);
    }
  }
 if (!touchDetected) 
  {
    tone(speakerPin, NOTE_A5);
  }
 }
*/
void woodwindbuttons ()
{
  int firstOpenHole = -1;

  for (int i = 0; i < numTones; i++) {
    if (digitalRead(buttonPins[i]) == LOW) {
      buttonPressed = true;
      firstOpenHole = i;
      currentNote = buttonTones[firstOpenHole];
      break; // Exit the loop once the first open hole is found
    }
  }

  if (buttonPressed) {
    tone(speakerPin, currentNote);
    
  } 
  else {
    currentNote = NOTE_A5;
    tone(speakerPin, currentNote);
    
  }
}

void buttonsonly ()
{
  buttonPressed = false;
  for (int i = 0; i < numTones; i++) {
    if (digitalRead(buttonPins[i]) == LOW) {
      buttonPressed = true;
      currentNote = buttonTones[i];
      tone(speakerPin, currentNote);
      
     if (!buttonPressed) {
      buttonPressed = false;
     currentNote = NOTE_A5;
    tone(speakerPin, currentNote);
    
  } 
    }
  }

  
}
// Toggle LED
void LEDtoggle() {
  
  if (ledFlag == true) {
    ledFlag = false;
    digitalWrite(LED_BUILTIN, LOW);
  } else {
    ledFlag = true;
    digitalWrite(LED_BUILTIN, HIGH);
  }
}
//  start of program


void setup() {
  Serial.begin(9600);
  digitalWrite(LED_BUILTIN, HIGH);
  for (int i = 0; i < numTones; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
    pinMode(ON_OFFbutton, INPUT_PULLUP);
    
  }
/*   
  for (int i = 0; i < numTones; i++) {
    sensors[i].init(touchPins[i], touchCalibration); // Adjust the second parameter as needed
  }
  const int numTones = sizeof(touchPins) / sizeof(touchPins[0]);
CapacitiveSensor sensors[numTones];

*/
  pinMode(speakerPin, OUTPUT);
}

// MAIN Program area

void loop() {
  // ************* ON OFF RESET ***************
 if (ON_OFFbutton == LOW)
 {
  delay(250);  //debounce
  if (ON_OFFbutton == LOW)
  {
    int i = 0;
    A0_Flag = true;
    for ( i=0; ON_OFFbutton == LOW; i++ )
    {
      delay(100);
    }
    if (i <= 10) //  1 second
    {
      Serial.println("Reset");// reset arduino
    }
    else // if over 1 second sleep
    {
      Serial.println("sleep Mode");
      LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF); //  deep sleep mode for arduino
    }
  }

 }

  // Update current and last notes
  if (lastNote != currentNote) {
    Serial.println(lastNote", "currentNote);
    lastNote = currentNote;
    LEDtoggle ();
  } 

  
  
 // This function Snippet of Code works as a woodwind instrument  
  //woodwindbuttons ();

 //  ***** this snippit of code is for individual buttons  ****
  buttonsonly ();

//  ***** this snippit of code is for using captouch sensors  ****
// captouchsence();
}
/*  
   **********  end of **********
*/