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

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* backendUrl = "https://022927b5-40fa-4a4e-8f87-9afd17897ca4-00-2zwdsducm8sur.picard.replit.dev/toggle-light/1";

const int ledPin = 2; 

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT); 
  
  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("WiFi connected");
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
   
    HTTPClient http;
    
   
    http.begin(backendUrl);
    int httpResponseCode = http.GET();
    
   
    if (httpResponseCode > 0) {
      Serial.print("HTTP Response code: ");
      Serial.println(httpResponseCode);
      
      
      DynamicJsonDocument doc(512);
      deserializeJson(doc, http.getString());
      

      const char* status = doc["status"];
      Serial.print("LED status: ");
      Serial.println(status);
      
      
      if (strcmp(status, "ON") == 0) {
        digitalWrite(ledPin, HIGH); 
        delay(500); 
      } else if (strcmp(status, "OFF") == 0) {
        digitalWrite(ledPin, LOW);
        delay(500); 
      } else {
        Serial.println("Invalid response from server");
      }
    } else {
      Serial.print("Error code: ");
      Serial.println(httpResponseCode);
    }
    
    
    http.end();
  } else {
    Serial.println("WiFi not connected");
  }
  
  delay(100); 
}