#include <SD.h>
#include <RTClib.h>

RTC_DS1307 rtc;

File file;

//stores the names and corresponing birthdays.
String names[20];
String dates[20];

//stores the current date
String current_date = "";

void setup() {
  Serial.begin(9600);
  SD.begin();
  rtc.begin();

  file = SD.open("birthday.txt", FILE_READ);

  read_current_date();
  read_file();

  match_date();

}

void read_file() {
  String paragraph;
  int i = 0;
  if(file){
    while(file.available()){
      String data = file.readStringUntil(":");
      names[i] = data;
      String data1 = file.readStringUntil("\n");
      dates[i] = data1;
      i++;
    }
  }

}

void read_current_date() {
 DateTime now = rtc.now();
 current_date = "";
 if(now.day() < 10){
  current_date.concat("0");

 }
 current_date.concat(now.day());
 current_date.concat("-");
 if(now.month() < 10){
  current_date.concat("0");
 } 
 current_date.concat(now.month());


}

void match_date() {
  int found = 0;
  for(int i = 0; i < 20; i++){
    int flag = 0;
    for(int j = 0; j < 5; j++){
      if(current_date[j] == dates[i][j]){
        flag++;
      }
    }
    if(flag == 5){
      Serial.print("Happy Birthday");
      Serial.println(names[i]);
      delay(3000);
      found = 1;
    }
  }
  if(found == 0){
    Serial.println("No birthday today");
  }
  /* write code to match the current date and month with the birthdays provided in the dates array.
    if any of these match, print the birthday boy's/girl's name. 
    Else, print "no birthday today!" */


}

void loop() {

}