// #include <Wire.h>      // Include the Wire library for I2C communication
// #include <RTClib.h>    // Include the RTClib library for accessing the RTC

// RTC_DS1307 rtc;        // Create an instance of the RTC_DS1307 class

// void setup() {
//   Serial.begin(9600);   // Initialize serial communication
//   Wire.begin(21, 22);   // Initialize I2C communication with the specified pins

//   // Check if the RTC is running and set the time if necessary
//   if (!rtc.begin()) {
//     Serial.println("Couldn't find RTC");
//     while (1);
//   }

//   if (!rtc.isrunning()) {
//     Serial.println("RTC is NOT running!");
//     // Set the time to the time the sketch was compiled
//     rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
//   }
// }

// void loop() {
//   DateTime now = rtc.now();   // Get the current date and time from the RTC

//   // Check if it's 8AM, 1PM, or 6PM
//   if (now.hour() == 2 && now.minute() == 14 && now.second() == 0) {
//     Serial.println("It's 2:14 AM");
//   } else if (now.hour() == 2 && now.minute() == 15 && now.second() == 0) {
//     Serial.println("It's 2:15 PM");
//   } else if (now.hour() == 2 && now.minute() == 16 && now.second() == 0) {
//     Serial.println("It's 2:16 PM");
//   }

//   delay(1000);  // Wait for 1 second before checking again
// }

// ------------------------------------------------------ //
// ------------------------------------------------------ //

// #include <SD.h>

// #define CS_PIN 5

// File root;

// void setup() {
//   Serial.begin(115200);

//   Serial.print("Initializing SD card... ");

//   if (!SD.begin(CS_PIN)) {
//     Serial.println("Card initialization failed!");
//     while (true);
//   }

//   Serial.println("initialization done.");

//   Serial.println("Files in the card:");
//   root = SD.open("/");
//   printDirectory(root, 0);
//   Serial.println("");

//   // Example of reading file from the card:
//   File textFile = SD.open("/wokwi.txt");
//   if (textFile) {
//     Serial.print("wokwi.txt: ");
//     while (textFile.available()) {
//       Serial.write(textFile.read());
//     }
//     textFile.close();
//   } else {
//     Serial.println("error opening wokwi.txt!");
//   }
// }

// void loop() {
//   delay(100);
//   // nothing happens after setup finishes.
// }

// void printDirectory(File dir, int numTabs) {
//   while (true) {

//     File entry =  dir.openNextFile();
//     if (! entry) {
//       // no more files
//       break;
//     }
//     for (uint8_t i = 0; i < numTabs; i++) {
//       Serial.print('\t');
//     }
//     Serial.print(entry.name());
//     if (entry.isDirectory()) {
//       Serial.println("/");
//       printDirectory(entry, numTabs + 1);
//     } else {
//       // files have sizes, directories do not
//       Serial.print("\t\t");
//       Serial.println(entry.size(), DEC);
//     }
//     entry.close();
//   }
// }

// ------------------------------------------------------ //
// ------------------------------------------------------------- //

#include <Wire.h>      // Include the Wire library for I2C communication
#include <RTClib.h>    // Include the RTClib library for accessing the RTC
#include <SPI.h>       // Include the SPI library for SPI communication
#include <SD.h>        // Include the SD library for SD card operations

RTC_DS1307 rtc;        // Create an instance of the RTC_DS1307 class
File myFile;           // Create a File object to handle file operations

const int chipSelect = 5;  // CS pin for the SD card module

void setup() {
  Serial.begin(9600);   // Initialize serial communication
  Wire.begin(21, 22);   // Initialize I2C communication with the specified pins

  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  // Initialize SD card
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    while (1);
  }
  Serial.println("Card initialized.");

  // Create or open the text file
  myFile = SD.open("timeLog.txt", FILE_WRITE);
  if (myFile) {
    myFile.println("Starting time log...");
    myFile.close();
  } else {
    Serial.println("Error opening timeLog.txt");
  }
}

void loop() {
  DateTime now = rtc.now();   // Get the current date and time from the RTC

  // Check if it's specific times and log them
  if (now.hour() == 2 && now.minute() == 38 && now.second() == 0) {
    logTime("It's 2:38 AM");
  } else if (now.hour() == 2 && now.minute() == 39 && now.second() == 0) {
    logTime("It's 2:39 AM");
  } else if (now.hour() == 2 && now.minute() == 40 && now.second() == 0) {
    logTime("It's 2:40 AM");
  }

  delay(1000);  // Wait for 1 second before checking again
}

void logTime(const String& message) {
  Serial.println(message);  // Log to serial for debugging
  myFile = SD.open("timeLog.txt", FILE_WRITE);
  if (myFile) {
    myFile.println(message);
    myFile.close();  // Close the file to save data
  } else {
    Serial.println("Error opening timeLog.txt");
  }
}