#include <RTClib.h>  // Define RTC_DS1307 and DateTime
#include "my_lcd.h"

MyLCD      lcd;
RTC_DS1307 rtc;

void setup() {
  Serial.begin(115200);
  lcd.begin();
  if (!rtc.begin()) {  // Time is critial
    Serial.println(F("Error: RTC not found!"));
    while (1);  // Halt if RTC fails
  }
}

void loop() {
  lcd.display("ESP32-DevKitC-v4", "Hello, World!", "Ngee Ann Poly");
  delay(5000);
  lcd.clear();
  DateTime now = rtc.now();
  char dtbuf[21] = "YYYY-MM-DD hh:mm:ss";
  now.toString(dtbuf); // Formats time into dtbuf
  lcd.datetime(dtbuf);
  lcd.alarm(1, "Temp UL1:", "40.6", 0);
  delay(5000);
  lcd.alarm(2, "Curr UL2:", "60.0", "A");
  delay(5000);
}


/*
  // Test DateTime constructors
  {
    DateTime dt(2025, 5, 29, 9, 15, 21);  // 2025-5-29 09:15:21
    memcpy(dtbuf, TIME_FORMAT, sizeof(TIME_FORMAT)); // Reset format
    Serial.println(dt.toString(dtbuf));
  }
  {
    DateTime dt(__DATE__, __TIME__);  // Code compilation date/time
    memcpy(dtbuf, TIME_FORMAT, sizeof(TIME_FORMAT)); // Reset format
    Serial.println(dt.toString(dtbuf));
  }
  {
    DateTime dt("2000-01-01T00:00:00Z");  // ISO 8601 date string
    memcpy(dtbuf, TIME_FORMAT, sizeof(TIME_FORMAT)); // Reset format
    Serial.println(dt.toString(dtbuf));
  }
  {
    DateTime dt(1234567);  // seconds since 2000
    memcpy(dtbuf, TIME_FORMAT, sizeof(TIME_FORMAT)); // Reset format
    Serial.println(dt.toString(dtbuf));
  }
*/