#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "pitches.h"

#define SPEAKER_PIN 8

const uint8_t buttonPins[] = { 12, 11, 10, 9, 7, 6, 5, 4 };
const int buttonTones[][8] = {
  { NOTE_E4, NOTE_G4, NOTE_C5, NOTE_D5, NOTE_E5, NOTE_G5, NOTE_A5, NOTE_C6 },  // Tonal pattern for button 1
  { NOTE_F4, NOTE_A4, NOTE_C5, NOTE_D5, NOTE_F5, NOTE_A5, NOTE_B5, NOTE_D6 },  // Tonal pattern for button 2
  { NOTE_G4, NOTE_B4, NOTE_D5, NOTE_E5, NOTE_G5, NOTE_B5, NOTE_C6, NOTE_E6 },  // Tonal pattern for button 3
  { NOTE_A4, NOTE_C5, NOTE_E5, NOTE_F5, NOTE_A5, NOTE_C6, NOTE_D6, NOTE_F6 },  // Tonal pattern for button 4
  { NOTE_B4, NOTE_D5, NOTE_F5, NOTE_G5, NOTE_B5, NOTE_D6, NOTE_E6, NOTE_G6 },  // Tonal pattern for button 5
  { NOTE_C5, NOTE_E5, NOTE_G5, NOTE_A5, NOTE_C6, NOTE_E6, NOTE_F6, NOTE_A6 },  // Tonal pattern for button 6
  { NOTE_D5, NOTE_F5, NOTE_A5, NOTE_B5, NOTE_D6, NOTE_F6, NOTE_G6, NOTE_B6 },  // Tonal pattern for button 7
  { NOTE_E5, NOTE_G5, NOTE_B5, NOTE_C6, NOTE_E6, NOTE_G6, NOTE_A6, NOTE_C7 }   // Tonal pattern for button 8
};
const int noteDurations[][8] = {
  { 400, 400, 400, 400, 400, 400, 400, 800 },  // Durations for button 1
  { 300, 300, 300, 300, 300, 300, 300, 600 },  // Durations for button 2
  { 350, 350, 350, 350, 350, 350, 350, 700 },  // Durations for button 3
  { 320, 320, 320, 320, 320, 320, 320, 640 },  // Durations for button 4
  { 280, 280, 280, 280, 280, 280, 280, 560 },  // Durations for button 5
  { 250, 250, 250, 250, 250, 250, 250, 500 },  // Durations for button 6
  { 200, 200, 200, 200, 200, 200, 200, 400 },  // Durations for button 7
  { 150, 150, 150, 150, 150, 150, 150, 300 }   // Durations for button 8
};
const char* buttonNames[] = {
  "DO", "RE", "MI", "FA", "SOL", "LA", "SI", "DO"
};
const int numTones = sizeof(buttonPins) / sizeof(buttonPins[0]);

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  lcd.begin(16, 2);
  lcd.backlight();
  lcd.clear();
  lcd.print("Halo Pak Julen");

  for (uint8_t i = 0; i < numTones; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  pinMode(SPEAKER_PIN, OUTPUT);
}

void loop() {
  for (uint8_t i = 0; i < numTones; i++) {
    if (digitalRead(buttonPins[i]) == LOW) {
      playTonePattern(buttonTones[i], noteDurations[i], 8, buttonNames[i]);
      delay(500); // Debounce delay
    }
  }
}

void playTonePattern(const int tones[], const int durations[], int length, const char* note) {
  lcd.clear();
  lcd.print(note);
  for (int i = 0; i < length; i++) {
    int duration = durations[i];
    tone(SPEAKER_PIN, tones[i], duration);
    delay(duration * 1.2); // Pause between tones
    noTone(SPEAKER_PIN);
    delay(50); // Short pause before next tone
  }
  lcd.clear();
  lcd.print("Mini Piano");
}