#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <SD.h>
#include <SPI.h>
#include <Audio.h>
#include <SerialFlash.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

Sd2Card card;
SdVolume volume;
SdFile root;

// Make another array and make the arrays equaltoean

char *mainArray[100];
char *mainArrayTone[100];
int indexSelect = 0;
int indexSelectTone = 0;
int firstNull = 5;
int lastValue = 4;
int upButton = 0;
int upButtonPrev = 0;
int downButton = 0;
int downButtonPrev = 0;
int playButton = 0;
int playButtonPrev = 0;
int playButtonPin = 6;
int downButtonPin = 5;
int upButtonPin = 4;

AudioPlaySdWav           playSdWav1;     //xy=306,67
AudioOutputAnalog        dac1;           //xy=469,296
AudioConnection          patchCord1(playSdWav1, 1, dac1, 0);

#define SDCARD_CS_PIN    BUILTIN_SDCARD
#define SDCARD_MOSI_PIN  11  // not actually used
#define SDCARD_SCK_PIN   13  // not actually used

void setup()
{
 
  lcd.init();
  Serial.begin(9600);
  
  pinMode(downButtonPin,INPUT);
  pinMode(upButtonPin,INPUT);
  pinMode(playButtonPin,INPUT);

  AudioMemory(8);

  mainArray[0] = {"Homescreen"};
  mainArray[1] = {"Levan"};
  mainArray[2] = {"Chang-Siu"};
  mainArray[3] = {"Clyatt"};
  mainArray[4] = {"Green"};

  mainArrayTone[0] = {"LEVAN.WAV"};
  mainArrayTone[1] = {"LEVAN.WAV"};
  mainArrayTone[2] = {"CHANGSIU.WAV"};
  mainArrayTone[3] = {"CLYATT.WAV"};
  mainArrayTone[4] = {"LEAN.WAV"};

 

  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  if (!(SD.begin(SDCARD_CS_PIN))) {
    // stop here, but print a message repetitively
    while (1) {
      Serial.println("Unable to access the SD card");
      delay(500);
    }
  }
}

void playFile(const char *filename)
{
  Serial.print("Playing file: ");
  Serial.println(filename);

  // Start playing the file.  This sketch continues to
  // run while the file plays.
  playSdWav1.play(filename);

  // A brief delay for the library read WAV info
  delay(5);

  // Simply wait for the file to finish playing.
  while (playSdWav1.isPlaying()) {
    // uncomment these lines if you audio shield
    // has the optional volume pot soldered
    //float vol = analogRead(15);
    //vol = vol / 1024;
    // sgtl5000_1.volume(vol);
  }
}


void loop()
{
  upButtonPrev = upButton;
  upButton = digitalRead(upButtonPin);

  downButtonPrev = downButton;
  downButton = digitalRead(downButtonPin);

  playButtonPrev = playButton;
  playButton = digitalRead (playButtonPin);

  if (upButton == HIGH && upButtonPrev == LOW) {
    delay(100);
    indexSelect = indexSelect + 1;
    indexSelectTone = indexSelectTone + 1;
    lcd.clear();
    if (indexSelect == firstNull) {
      indexSelect = 0;
      indexSelectTone = 0;
  
    }//end max
  }//end up if statement

  if (downButton == HIGH && downButtonPrev == LOW) {
    delay(100);
    indexSelect = indexSelect - 1;
    indexSelectTone = indexSelectTone - 1;
    lcd.clear();
    if (indexSelect < 0) {
      indexSelect = lastValue;
      indexSelectTone = 4;
    }//end min
  }//end down if statement
  Serial.println(mainArray[indexSelect]);
  Serial.println(mainArrayTone[indexSelectTone]);

  if (playButton == HIGH && playButtonPrev == LOW) {
     
      playFile(mainArrayTone[indexSelectTone]);
      delay(500);
    
    indexSelect = 0;
    indexSelectTone = 0;
    
}
lcd.setCursor(3, 0);
  lcd.print(mainArray[indexSelect]);
 
}