#include <EEPROM.h>

// Define EEPROM addresses
const int value1Address = 0;          // Address for the first value
const int value2Address = sizeof(int); // Address for the second value
const int value3Address = 2 * sizeof(int); // Address for the third value
const int value4Address = 3 * sizeof(int); // Address for the fourth value

// Button pins
const int button1Pin = 2; // Pin for the first button
const int button2Pin = 3; // Pin for the second button
const int button3Pin = 4; // Pin for the third button
const int button4Pin = 5; // Pin for the fourth button

// Variables to hold the values
int value1;
int value2;
int value3;
int value4;

// Function to read values from EEPROM
void readValuesFromEEPROM() {
  EEPROM.get(value1Address, value1);
  EEPROM.get(value2Address, value2);
  EEPROM.get(value3Address, value3);
  EEPROM.get(value4Address, value4);
}

// Function to write values to EEPROM
void writeValuesToEEPROM() {
  EEPROM.put(value1Address, value1);
  EEPROM.put(value2Address, value2);
  EEPROM.put(value3Address, value3);
  EEPROM.put(value4Address, value4);
}

void setup() {
  Serial.begin(9600); // Start serial communication

  // Initialize button pins
  pinMode(button1Pin, INPUT_PULLUP);
  pinMode(button2Pin, INPUT_PULLUP);
  pinMode(button3Pin, INPUT_PULLUP);
  pinMode(button4Pin, INPUT_PULLUP);

  // Read values from EEPROM
  readValuesFromEEPROM();

  // Check if the values are uninitialized (assuming default values are not negative)
  if (value1 == 0 && value2 == 0 && value3 == 0 && value4 == 0) {
    // If all values are zero, initialize them
    value1 = 0;
    value2 = 0;
    value3 = 0;
    value4 = 0;
    writeValuesToEEPROM(); // Write initialized values to EEPROM
    Serial.println("Default values written to EEPROM.");
  } else {
    Serial.println("Values read from EEPROM:");
  }

  // Print the values
  Serial.print("Value 1: ");
  Serial.println(value1);
  Serial.print("Value 2: ");
  Serial.println(value2);
  Serial.print("Value 3: ");
  Serial.println(value3);
  Serial.print("Value 4: ");
  Serial.println(value4);
}

void loop() {
  // Check button 1
  if (digitalRead(button1Pin) == LOW) { // Button 1 pressed
    value1++;
    writeValuesToEEPROM(); // Save new value to EEPROM
    Serial.print("Button 1 pressed. New Value 1: ");
    Serial.println(value1);
    delay(300); // Simple debounce
  }

  // Check button 2
  if (digitalRead(button2Pin) == LOW) { // Button 2 pressed
    value2++;
    writeValuesToEEPROM(); // Save new value to EEPROM
    Serial.print("Button 2 pressed. New Value 2: ");
    Serial.println(value2);
    delay(300); // Simple debounce
  }

  // Check button 3
  if (digitalRead(button3Pin) == LOW) { // Button 3 pressed
    value3++;
    writeValuesToEEPROM(); // Save new value to EEPROM
    Serial.print("Button 3 pressed. New Value 3: ");
    Serial.println(value3);
    delay(300); // Simple debounce
  }

  // Check button 4
  if (digitalRead(button4Pin) == LOW) { // Button 4 pressed
    value4++;
    writeValuesToEEPROM(); // Save new value to EEPROM
    Serial.print("Button 4 pressed. New Value 4: ");
    Serial.println(value4);
    delay(300); // Simple debounce
  }

  // Add a small delay to avoid rapid toggling
  delay(10);
}