#include <LiquidCrystal_I2C.h>
#include <WiFi.h>  // Defines WiFi variable
#include "time.h"  // Defines configTime, getLocalTime, asctime, time_t

LiquidCrystal_I2C lcd(0x27, 20, 4);
uint8_t dot[] = {0x0E, 0x0A, 0x0E, 0x00, 0x00, 0x00, 0x00, 0x00};

void connectToWiFi() {
  bool flag = true;
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    lcd.setCursor(0, 0);
    lcd.print(flag ? "Connecting to WiFI++" : "Connecting to WiFI--");
    flag = false;
  }
  lcd.setCursor(0, 0);
           //12345678901234567891
  lcd.print("WiFi connected!     ");
  lcd.setCursor(0, 1);
  lcd.print(WiFi.localIP());
  configTime(8*3600, 0, "pool.ntp.org");
}

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  lcd.createChar(0, dot);  // Use slot 0
}

void loop() {
  if (WiFi.status() != WL_CONNECTED) {
    connectToWiFi();
  }

  struct tm timeinfo;
  if (getLocalTime(&timeinfo)) {
    char timeStr[20];
    strftime(timeStr, sizeof(timeStr), "%d/%m/%Y %H:%M:%S", &timeinfo);
    lcd.setCursor(0, 1);
    lcd.print(timeStr);
  }
  else {
    lcd.setCursor(0, 1);
             //12345678901234567891
    lcd.print("Failed to get time  ");
  }

  float h = 80.5;  // Relativity humidity
  float c = 27.0;  // Celsius
  
  lcd.setCursor(0, 2);
  lcd.print("Humidity: "); lcd.print(h, 1); lcd.print("%");
  lcd.setCursor(0, 3);
  lcd.print("Temperature: "); lcd.print(c, 1); lcd.write(0); lcd.print("C");

  delay(200);
}