#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <RTClib.h>

#define TFT_CS    10
#define TFT_DC    9
#define TFT_RST   8

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

RTC_DS3231 rtc;

void setup() {
  Serial.begin(9600);
  
  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__)));
  }

  tft.begin();
  tft.setRotation(3); // Adjust rotation if needed
}

void drawClock() {
  tft.fillScreen(ILI9341_BLACK);

  DateTime now = rtc.now();
  int hours = now.hour();
  int minutes = now.minute();
  int seconds = now.second();

  int centerX = tft.width() / 2;
  int centerY = tft.height() / 2;
  int clockRadius = tft.width() / 3;

  // Draw clock face
  tft.fillCircle(centerX, centerY, clockRadius, ILI9341_WHITE);
  tft.drawCircle(centerX, centerY, clockRadius, ILI9341_YELLOW);

  // Draw clock hands
  int secondHandLength = clockRadius - 10;
  int minuteHandLength = clockRadius - 20;
  int hourHandLength = clockRadius - 40;

  int secondX = centerX + secondHandLength * cos((seconds - 15) * 6 * PI / 180);
  int secondY = centerY + secondHandLength * sin((seconds - 15) * 6 * PI / 180);
  tft.drawLine(centerX, centerY, secondX, secondY, ILI9341_RED);

  int minuteX = centerX + minuteHandLength * cos((minutes - 15) * 6 * PI / 180);
  int minuteY = centerY + minuteHandLength * sin((minutes - 15) * 6 * PI / 180);
  tft.drawLine(centerX, centerY, minuteX, minuteY, ILI9341_BLUE);

  int hourX = centerX + hourHandLength * cos((hours % 12 - 3) * 30 * PI / 180);
  int hourY = centerY + hourHandLength * sin((hours % 12 - 3) * 30 * PI / 180);
  tft.drawLine(centerX, centerY, hourX, hourY, ILI9341_GREEN);
}

void loop() {
  drawClock();
 // delay(1000);
}