#include <WiFi.h>
#include <WebServer.h>

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

WebServer server(80);

const int ledPin = 4; 

void handleRoot() {
  server.send(200, "text/html", "<h1>You are connected</h1><p><a href=\"/LED_ON\"><button>Turn On LED</button></a></p><p><a href=\"/LED_OFF\"><button>Turn Off LED</button></a></p>");
}

void handleLEDOn() {
  digitalWrite(ledPin, HIGH);
  server.send(200, "text/html", "<h1>LED is ON</h1><p><a href=\"/\"><button>Go Back</button></a></p>");
}

void handleLEDOff() {
  digitalWrite(ledPin, LOW);
  server.send(200, "text/html", "<h1>LED is OFF</h1><p><a href=\"/\"><button>Go Back</button></a></p>");
}

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

  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW); 

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  server.on("/", handleRoot);
  server.on("/LED_ON", handleLEDOn);
  server.on("/LED_OFF", handleLEDOff);

  server.begin();
  Serial.println("HTTP server started");
}

void loop() {
  server.handleClient();
}