#include <MD_MAX72xx.h>
#include <RTClib.h>
#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define MAX_DEVICES 1
#define DATA_PIN PA7
#define CS_PIN PA4
#define CLK_PIN PA5
MD_MAX72XX mx = MD_MAX72XX(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
RTC_DS1307 rtc;
void setup() {
  mx.begin();
  mx.control(MD_MAX72XX::INTENSITY, 5);
  mx.clear();
  // Custom bitmap for 'H'
  uint8_t H[8] = {
    0x00,
    0x7E,
    0x42,
    0x42,
    0x42,
    0x42,
    0x42,
    0x00
  };
  for (uint8_t i = 0; i < 8; i++) {
    mx.setColumn(i, H[i]);
  }
  Serial.begin(9600);
  Wire.begin();
  Serial.begin(9600);
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    // Set to a known time
    rtc.adjust(DateTime(F(_DATE), F(TIME_)));
  }
  // if (!rtc.begin()) {
  //   Serial.println("Couldn't find RTC");
  //   while (1);
  // }

  // if (!rtc.isrunning()) {
  //   Serial.println("RTC is NOT running, setting the time!");
  //   rtc.adjust(DateTime(2025, 8, 9, 22, 0, 0)); // Set manually
  // }
  // Serial.begin(9600);
  // Wire.begin();
  rtc.begin();
  rtc.adjust(DateTime(2025, 8, 9, 22, 30, 0));
}
void loop() {
  // DateTime now = rtc.now();
  // Serial.print("Current Time: ");
  // Serial.print(now.hour());
  // Serial.print(':');
  // Serial.print(now.minute());
  // Serial.print(':');
  // Serial.println(now.second());
  // Serial.println(now.timestamp(DateTime::TIMESTAMP_FULL));

  // delay(1000); // Update every second
  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('T');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.println(now.second(), DEC);
  delay(1000);
}