#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

const int redLed = 12;
const int greenLed = 10;
const int yellowLed = 8;
const int blueLed = 7;

//Define constants for buttons and variables
float buttonAState = 0.0;
float buttonBState = 0.0;
unsigned long startTime = 0;
bool tuneUp = false;
bool tuneDown = false;
bool volUp = false;
bool volDown = false;

void setup() {
    pinMode(redLed, OUTPUT);
    pinMode(greenLed, OUTPUT);
    pinMode(yellowLed, OUTPUT);
    pinMode(blueLed, OUTPUT);
    Serial.begin(9600);
    
    // LCD stuff
    lcd.init();
    lcd.backlight();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Issokay");
    lcd.setCursor(0, 1);
    lcd.print("   ANDREW   ");
    delay(1000);
    lcd.clear();
}

void loop() {

  // Read the seek station buttons states
  buttonAState = (analogRead(A0) * 5.0)/1023;
  buttonBState = (analogRead(A1) * 5.0)/1023;
  
  // Update button press states with debounce
  if (buttonAState >= 2.0 && buttonAState <= 3.0) {
    startTime = millis();
    tuneUp = true;

  } else if (buttonAState <= 1.0) {
    startTime = millis();
    tuneDown = true;

  } else {
    tuneUp = false;
    tuneDown = false;
  }

  if (buttonBState >= 2.0 && buttonBState <= 3.0) {
    startTime = millis();
    volUp = true;

  } else if (buttonBState <= 1.0) {
    startTime = millis();
    volDown = true;
    
  } else {
    volUp = false;
    volDown = false;
  }

  if (tuneUp){
    digitalWrite(redLed, HIGH);
    digitalWrite(greenLed, LOW);
    Serial.println("Tuning up right now");
    Serial.print("The value read is: ");
    Serial.println(buttonAState);
  
  } if (tuneDown){
    digitalWrite(greenLed, HIGH);
    digitalWrite(redLed, LOW);
    Serial.println("Tuning down right now");
    Serial.print("The value read is: ");
    Serial.println(buttonAState);

  } if (volUp) {
    digitalWrite(yellowLed, HIGH);
    digitalWrite(blueLed, LOW);
    Serial.println("Turning Volume up right now");
    Serial.print("The value read is: ");
    Serial.println(buttonBState);

  } if (volDown) {
    digitalWrite(blueLed, HIGH);
    digitalWrite(yellowLed, LOW);
    Serial.println("Turning Volume down right now");
    Serial.print("The value read is: ");
    Serial.println(buttonBState);

  } if (!tuneUp && !tuneDown && !volUp && !volDown) {
    Serial.print("Tuning is Out of range: ");
    Serial.println(buttonAState);
    Serial.print("Volume is Out of range: ");
    Serial.println(buttonBState);
  }
  

  // Print voltages to the LCD
  lcd.setCursor(0, 0);
  lcd.print("Voltage A0: ");
  lcd.setCursor(13, 0);
  lcd.print(analogRead(A0));
  lcd.setCursor(0, 1);
  lcd.print("Voltage A1: ");
  lcd.setCursor(13, 1);
  lcd.print(analogRead(A1));


  delay(200); // Adjust delay as needed

}