// Зайцев Алексей

#include "Clock.h"
#include "config.h"

int work_clock[2][4] = {
    {7, 0, 8, 20},
    {20, 0, 21, 20}
};

const int INTERVAL_MINUTES = 15;


Clock clock;

void setup() {
  Serial.begin(115200);
  clock.begin();
  pinMode(13, OUTPUT); // светодиод
  pinMode(7, INPUT); // кнопка
  pinMode(11, OUTPUT); // buzzer 
}

void alarm(int alarm_level) {
  switch (alarm_level) {
    case 1:
      tone(11, 1000, 1000);
      digitalWrite(13, HIGH);
      break;
    case 2:
      tone(11, 1000, 2000);
      digitalWrite(13, HIGH);
      break;
    case 3:
      tone(11, 1000, 50000);
      break;
    default:
      break;
  }
}

int differenceMinute(DateTime first, DateTime second) {
  if (first.hour() < second.hour() || (first.hour() == second.hour() && first.minute() < second.minute())) {
    return -1;
  } else {
    return (first.hour() - second.hour()) * 60 + first.minute() - second.minute();
  }
}

void checkTime(DateTime start) {
    DateTime current_time = clock.now();
    int difference = differenceMinute(current_time, start);
    if (difference >= INTERVAL_MINUTES && difference <= INTERVAL_MINUTES * 2) { 
        alarm(1);
        return;
    } else if (difference > INTERVAL_MINUTES * 2) { 
        alarm(2);
        return;
    } else if (difference > 0 && difference < INTERVAL_MINUTES) { 
        alarm(3);
        return;
    } else {
        return;
    }
}

bool checker(int work_clock[2][4], DateTime current_time) {
    for (int i = 0; i < 2; i++) {
        if (
            (current_time.hour() > work_clock[i][0] || (current_time.hour() == work_clock[i][0] && current_time.minute() >= work_clock[i][1])) && 
            (current_time.hour() < work_clock[i][2] || (current_time.hour() == work_clock[i][2] && current_time.minute() <= work_clock[i][3]))
        ) {
            return true;
        }
    }
    return false;
}

int start_time = 0;

void loop() {
  DateTime current_time = clock.now();
  if (checker(work_clock, current_time))
  {
        if (!start_time) {
        DateTime start_time = clock.now();
        }

        checkTime(start_time);

        if (digitalRead(7) == HIGH) {
        int start_time = 0; 
        }
  } else{
    digitalWrite(13, LOW);
    delay(1000);
  }
}