#include <WiFi.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <TM1637Display.h>
#include "DHT.h"
#include <Wire.h>
#include <RTClib.h>

// Constants
#define DHTPIN 21         // DHT22 data pin
#define DHTTYPE DHT22     // DHT22 sensor type
#define CLK_PIN 27        // TM1637 clock pin
#define DIO_PIN 26        // TM1637 data pin
#define RTC_PIN 4         // RTC data pin
#define BUTTON_PIN_JAM 14 // Jam button pin
#define BUTTON_PIN_MENIT 12 // Menit button pin
#define BUTTON_PIN_ALARM 13 // Alarm button pin

// Initialize DHT sensor
DHT dht(DHTPIN, DHTTYPE);

// Initialize RTC
RTC_DS3231 rtc;

// Initialize TM1637
TM1637Display display(CLK_PIN, DIO_PIN);

// Initialize NTP client
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", 25200);

// Variables
int jam = 0;
int menit = 0;
int alarm_jam = 0;
int alarm_menit = 0;
int suhu = 0;
int kelembaban = 0;
bool alarm_on = false;

void setup() {
  // Initialize serial communication
  Serial.begin(115200);

  // Connect to WiFi network
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
  

  // Initialize NTP client
  timeClient.begin();

  // Initialize DHT sensor
  dht.begin();

  // Initialize RTC
  Wire.begin();
  rtc.begin();

  // Set initial time (from NTP server)
  configTime(25200, 0, "pool.ntp.org");
  timeClient.update();
  rtc.adjust(DateTime(timeClient.getEpochTime()));

  // Set initial display
  display.setBrightness(0x0f);
  display.showNumberDec(jam * 100 + menit);

  // Initialize button inputs
  pinMode(BUTTON_PIN_JAM, INPUT_PULLUP);
  pinMode(BUTTON_PIN_MENIT, INPUT_PULLUP);
  pinMode(BUTTON_PIN_ALARM, INPUT_PULLUP);

  // Set up interrupt service routine for buttons
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN_JAM), interruptHandlerJam, FALLING);
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN_MENIT), interruptHandlerMenit, FALLING);
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN_ALARM), interruptHandlerAlarm, FALLING);
}

void loop() {
  // Update time (from NTP server)
  timeClient.update();
  rtc.adjust(DateTime(timeClient.getEpochTime()));

  // Get current time
  DateTime now = rtc.now();
  jam = now.hour();
  menit = now.minute();

  // Get temperature and humidity
  suhu = dht.readTemperature();
  kelembaban = dht.readHumidity();

// Check if alarm time has been reached
if (alarm_on && jam == alarm_jam && menit == alarm_menit) {
Serial.println("Alarm on!");
// Add alarm behavior here
}

// Display current time and temperature
display.showNumberDec(jam * 100 + menit);
delay(1000);
display.showNumberDec(suhu);
delay(1000);
display.showNumberDec(kelembaban);
delay(1000);
}

// Interrupt service routine for changing hour
void interruptHandlerJam() {
if (jam == 23) {
jam = 0;
} else {
jam++;
}
display.showNumberDec(jam * 100 + menit);
}

// Interrupt service routine for changing minute
void interruptHandlerMenit() {
if (menit == 59) {
menit = 0;
} else {
menit++;
}
display.showNumberDec(jam * 100 + menit);
}

// Interrupt service routine for setting alarm
void interruptHandlerAlarm() {
alarm_on = !alarm_on;
if (alarm_on) {
// Set alarm time to current time
alarm_jam = jam;
alarm_menit = menit;
Serial.println("Alarm set for " + String(alarm_jam) + ":" + String(alarm_menit));
} else {
Serial.println("Alarm off");
}
}