#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

String apiKey = "c4d4645367096c18822e3145a3a6e5aa";
String city = "Bangalore";

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(115200);

  lcd.init();
  lcd.backlight();

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nConnected to WiFi");
}

void loop() {

  if (WiFi.status() == WL_CONNECTED) {

    HTTPClient http;

    String url = "http://api.openweathermap.org/data/2.5/weather?q=" 
                 + city + "&appid=" + apiKey + "&units=metric";

    http.begin(url);
    int httpCode = http.GET();

    if (httpCode > 0) {

      String payload = http.getString();
      Serial.println(payload);

      StaticJsonDocument<2048> doc;
      deserializeJson(doc, payload);

      // Extract real values
      float temp = doc["main"]["temp"];
      int humidity = doc["main"]["humidity"];
      String condition = doc["weather"][0]["description"];

      // Serial Output
      Serial.println("Temp: " + String(temp));
      Serial.println("Humidity: " + String(humidity));
      Serial.println("Condition: " + condition);

      // LCD Output
      lcd.clear();

      lcd.setCursor(0, 0);
      lcd.print("Temp:");
      lcd.print(temp);
      lcd.print("C");

      lcd.setCursor(0, 1);
      lcd.print("Hum:");
      lcd.print(humidity);
      lcd.print("%");

    } else {
      Serial.println("HTTP Error");
    }

    http.end();
  }

  delay(10000); // refresh every 10 sec
}