#include <Wire.h>
#include <RTClib.h>

RTC_DS3231 rtc;

byte pbNg = 4;
byte ledNg = 2;
byte pbGood = 7;
byte ledGood = 8;
bool btnNgState;
bool btnGoodState;
bool prevBtnNgState = LOW;
bool prevBtnGoodState = LOW;
bool ngButtonPressed = false;
bool goodButtonPressed = false;
unsigned long lastDebounceTimeNg = 0;
unsigned long lastDebounceTimeGood = 0;
unsigned long debounceDelay = 50; // Adjust debounce delay as needed

void setup() {
  pinMode(pbNg, INPUT);
  pinMode(ledNg, OUTPUT);
  pinMode(pbGood, INPUT);
  pinMode(ledGood, OUTPUT);
  
  Serial.begin(115200);
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  
  if (rtc.lostPower()) {
    Serial.println("RTC lost power, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
}

void loop() {
  // Check buttons with debounce
  buttonNg();
  buttonGood();
}

void buttonNg() {
  // Read the state of the button
  int reading = digitalRead(pbNg);

  // Check if the button state has changed
  if (reading != prevBtnNgState) {
    // Reset the debounce timer
    lastDebounceTimeNg = millis();
  }

  // Check if the debounce delay has passed
  if ((millis() - lastDebounceTimeNg) > debounceDelay) {
    // Update the button state only if there's a change after debounce
    if (reading != btnNgState) {
      btnNgState = reading;

      // Handle button press
      if (btnNgState && !ngButtonPressed) {  // Button pressed, and it was not pressed before
        ngButtonPressed = true;
        digitalWrite(ledNg, HIGH);
        Serial.print("Button Ng pressed at ");
        printDateTime();
      } else if (!btnNgState && ngButtonPressed) {  // Button released
        digitalWrite(ledNg, LOW);  // Turn off the LED when button is not pressed
        ngButtonPressed = false;
      }
    }
  }

  // Update the previous button state
  prevBtnNgState = reading;
}

void buttonGood() {
  // Read the state of the button
  int reading = digitalRead(pbGood);

  // Check if the button state has changed
  if (reading != prevBtnGoodState) {
    // Reset the debounce timer
    lastDebounceTimeGood = millis();
  }

  // Check if the debounce delay has passed
  if ((millis() - lastDebounceTimeGood) > debounceDelay) {
    // Update the button state only if there's a change after debounce
    if (reading != btnGoodState) {
      btnGoodState = reading;

      // Handle button press
      if (btnGoodState && !goodButtonPressed) {  // Button pressed, and it was not pressed before
        goodButtonPressed = true;
        digitalWrite(ledGood, HIGH);
        Serial.print("Button Good pressed at ");
        printDateTime();
      } else if (!btnGoodState && goodButtonPressed) {  // Button released
        digitalWrite(ledGood, LOW);  // Turn off the LED when button is not pressed
        goodButtonPressed = false;
      }
    }
  }

  // Update the previous button state
  prevBtnGoodState = reading;
}

void printDateTime() {
  DateTime now = rtc.now();
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(" ");
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();
}