// Learn about the ESP32 WiFi simulation in
// https://docs.wokwi.com/guides/esp32-wifi

#include <WiFi.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 20, 4);
#define BEEPER_PIN 5
#define DHTPIN 4
#define NTP_SERVER     "asia.pool.ntp.org"
#define UTC_OFFSET     28800
#define UTC_OFFSET_DST 0
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

void spinner() {
  static int8_t counter = 0;
  const char* glyphs = "\xa1\xa5\xdb";
  LCD.setCursor(15, 1);
  LCD.print(glyphs[counter++]);
  if (counter == strlen(glyphs)) {
    counter = 0;
  }
}

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    LCD.setCursor(0, 1);
    LCD.println("Connection Err");
    return;
  }

  LCD.setCursor(9, 0);
  LCD.println(&timeinfo, "%I:%M:%S %p");

  LCD.setCursor(0, 1);
  LCD.println(&timeinfo, "%d/%m/%Y   %Z");

  LCD.setCursor(0, 2);
  LCD.println(&timeinfo, "%A "); // Print the day of the week

}


void setup() {
  Serial.begin(115200);
  pinMode(BEEPER_PIN, OUTPUT);
  dht.begin();  // Start the DHT sensor
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    spinner();
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  LCD.clear();
  LCD.setCursor(1, 0);
  LCD.println("Phil-T");
  LCD.setCursor(0, 1);
  LCD.println("Updating time...");

  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
}

void loop() {
  printLocalTime();
  // Read temperature and humidity from DHT sensor
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  LCD.setCursor(0, 3);
  LCD.println("Temp:");
  LCD.setCursor(5, 3);
  LCD.println(t);
  LCD.setCursor(10, 3);
  LCD.println("C");
  LCD.setCursor(12, 3);
  LCD.println("H:");
  LCD.setCursor(14, 3);
  LCD.println(h);
   LCD.setCursor(18, 3); 
   LCD.println("%");  
  delay(250);
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    return;
  }

  int hour = timeinfo.tm_hour;
  int minute = timeinfo.tm_min;
  int second = timeinfo.tm_sec;

  // Beep every hour
  if (minute == 0 && second == 0) {
    beep();
    delay(2000);
    nobeep();
  }

  // Additional beep at 3PM
  if (hour == 15 && minute == 0 && second == 0) {
    beep();
    delay(6000);
    nobeep();
  }

}
void beep() {
  tone(BEEPER_PIN, 196, 1000);
  
}
void nobeep() {
  noTone(BEEPER_PIN);
}