//#include <MD_MAX72XX.h>
#include <MD_Parola.h>
#include <SPI.h>
#include <MD_MAX72xx.h>
// Define hardware type and number of devices
#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define MAX_DEVICES 4

// Define pins
#define DATA_PIN 11
#define CLK_PIN 13
#define CS_PIN 10

// Create a matrix display object
MD_MAX72XX mx = MD_MAX72XX(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);

int hour = 10;
int minute = 10;
int second = 0;

// Function prototypes
void drawClockFace();
void updateClockHands(int h, int m, int s);
void incrementTime();

void setup() {
  mx.begin();
  mx.control(MD_MAX72XX::INTENSITY, 8);
  mx.clear();

  drawClockFace();
  updateClockHands(hour, minute, second);
}

void loop() {
  delay(1000); // Update every second
  incrementTime();
  drawClockFace();
  updateClockHands(hour, minute, second);
}

void drawClockFace() {
  mx.clear();
  // Draw hour markers
  for (int i = 0; i < 12; i++) {
    float angle = i * 30 * PI / 180;
    int x = 16 + 7 * cos(angle - PI / 2);
    int y = 8 + 7 * sin(angle - PI / 2);
    mx.setPoint(y, x, true);
  }
}

void updateClockHands(int h, int m, int s) {
  // Calculate angles for each hand
  float angle_s = s * 6 * PI / 180;
  float angle_m = (m + s / 60.0) * 6 * PI / 180;
  float angle_h = (h % 12 + m / 60.0) * 30 * PI / 180;
  
  // Draw second hand
  int x_s = 16 + 7 * cos(angle_s - PI / 2);
  int y_s = 8 + 7 * sin(angle_s - PI / 2);
  mx.setPoint(y_s, x_s, true);

  // Draw minute hand
  int x_m = 16 + 5 * cos(angle_m - PI / 2);
  int y_m = 8 + 5 * sin(angle_m - PI / 2);
  mx.setPoint(y_m, x_m, true);
  
  // Draw hour hand
  int x_h = 16 + 3 * cos(angle_h - PI / 2);
  int y_h = 8 + 3 * sin(angle_h - PI / 2);
  mx.setPoint(y_h, x_h, true);
}

void incrementTime() {
  second++;
  if (second == 60) {
    second = 0;
    minute++;
    if (minute == 60) {
      minute = 0;
      hour++;
      if (hour == 24) {
        hour = 0;
      }
    }
  }
}