#include <WiFi.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

#define TFT_DC 2
#define TFT_CS 15
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org");

void drawClock(int hour, int minute, int second) {
  tft.fillScreen(ILI9341_BLACK);
  tft.setCursor(0, 0);

  int w = tft.width();
  int h = tft.height();

  for (int i = 0; i < 12; i++) {
    float a = (i * 360/12) * DEG_TO_RAD;
    int r = 90;
    int x = w / 2 + r * sin(a);
    int y = h / 2 + r * cos(a);
    tft.drawLine(x, y, x, y, ILI9341_WHITE);
  }

  // Draw clock face
//  tft.fillCircle(tft.width() / 2, tft.height() / 2, 100, ILI9341_WHITE);
  tft.drawCircle(tft.width() / 2, tft.height() / 2, 100, ILI9341_WHITE);

  // Draw hour hand
  float hourAngle = (hour % 12 + minute / 60.0) * 30 * DEG_TO_RAD;
  int hourX = tft.width() / 2 + 40 * cos(hourAngle);
  int hourY = tft.height() / 2 + 40 * sin(hourAngle);
  tft.drawLine(tft.width() / 2, tft.height() / 2, hourX, hourY, ILI9341_RED);

  // Draw minute hand
  float minuteAngle = (minute + second / 60.0) * 6 * DEG_TO_RAD;
  int minuteX = tft.width() / 2 + 60 * cos(minuteAngle);
  int minuteY = tft.height() / 2 + 60 * sin(minuteAngle);
  tft.drawLine(tft.width() / 2, tft.height() / 2, minuteX, minuteY, ILI9341_GREEN);

  // Draw second hand
  float secondAngle = second * 6 * DEG_TO_RAD;
  int secondX = tft.width() / 2 + 80 * cos(secondAngle);
  int secondY = tft.height() / 2 + 80 * sin(secondAngle);
  tft.drawLine(tft.width() / 2, tft.height() / 2, secondX, secondY, ILI9341_BLUE);
}

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);

  tft.begin();
  tft.setRotation(1);

  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.print("Connecting to WiFi");

  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    tft.print(".");
  }

  tft.print("\nOK! IP=");
  tft.println(WiFi.localIP());
  Serial.println(WiFi.localIP());

  timeClient.begin();
  timeClient.setTimeOffset(3600); // Set offset to 0 for UTC time
}

void loop() {
  timeClient.update();

  int currentHour = timeClient.getHours();
  int currentMinute = timeClient.getMinutes();
  int currentSecond = timeClient.getSeconds();

  Serial.printf("%02d:%02d:%02d\n", currentHour, currentMinute, currentSecond);
  drawClock(currentHour, currentMinute, currentSecond);

  delay(1000); // Update every second
}