#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include "RTClib.h"
#include <Servo.h>

Servo motor;

RTC_DS1307 rtc;
char dayNames[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
String day;
int date, month, year, hour, minute, second;

LiquidCrystal_I2C lcd(0x27, 20, 4); // set the LCD address to 0x27 for a 20x4 LCD display

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

    // Servo
    motor.attach(5);
    motor.write(0); // Start at 0 position

    // LCD
    lcd.init(); // Initialize the LCD
    lcd.backlight(); // Turn on backlight

    // RTC
    if (!rtc.begin()) {
        Serial.println("RTC NOT READABLE");
        while (1);  // Halt if RTC is not found
    }

    if (!rtc.isrunning()) {
        Serial.println("RTC is NOT running!");
        // rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // Uncomment this if you want to set RTC from compile time
    }
}

void loop() {
    // RTC
    DateTime now = rtc.now();

    day = dayNames[now.dayOfTheWeek()];
    date = now.day();
    month = now.month();
    year = now.year();
    hour = now.hour();
    minute = now.minute();
    second = now.second();

    Serial.println(String() + day + ", " + date + "-" + month + "-" + String(year));
    Serial.println(String() + hour + ":" + minute + ":" + second);

    // LCD Display the current day, date, and time
    lcd.setCursor(0, 0);
    lcd.print(day + ", " + String(date) + "-" + String(month) + "-" + String(year));
    lcd.setCursor(0, 1);
    lcd.print(String(hour) + ":" + String(minute) + ":" + String(second));

    // Servo Movement Condition - Feed every 10 seconds
    if (second % 10 == 0) {  // Check if second is a multiple of 10
        feeding(1);  // Adjust feeding amount if needed
        delay(1000); // Wait to avoid multiple triggers within the same second
    }

    // Servo Movement Condition - Feed at a specific time (e.g., 21:44:01)
    if (hour == 21 && minute == 44 && second == 1) { 
        feeding(2);
        delay(1000); // Wait to prevent multiple triggers within the same second
    }

    // Display "Time to clean me" at the start of every minute (when second is 0)
    if (second == 0) {
        lcd.clear(); // Clear the LCD screen
        lcd.setCursor(0, 0);
        lcd.print("CLEEAN ME");
        delay(2000);  // Wait for 2 seconds to display the message
        lcd.clear();  // Clear the screen after the message
    }
}

void feeding(int amount) {
    for (int i = 0; i < amount; i++) {
        // Servo movement
        motor.write(150);  // Move servo to feeding position
        delay(1000);       // Wait for 1 second
        motor.write(0);    // Return servo to initial position
        delay(1000);       // Wait for 1 second
    }
}