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

int red_led=26;

void blink_led(void)
{
  digitalWrite(red_led,HIGH);
  delay(1000);
   digitalWrite(red_led,LOW);
   delay(1000);
}

const char* ssid = "OPPO A31";
const char* password = "Harish2k";

WebServer server(80);

void handleCommand() 
{
  if (server.method() == HTTP_POST) {
    String body = server.arg("plain");  // raw body of POST request

    Serial.print("Received command: ");
    Serial.println(body);

    if (body.indexOf("ON") != -1) {
      digitalWrite(red_led, HIGH);
      server.send(200, "application/json", "{\"status\":\"LED turned ON\"}");
    } else if (body.indexOf("OFF") != -1) {
      digitalWrite(red_led, LOW);
      server.send(200, "application/json", "{\"status\":\"LED turned OFF\"}");
    } else {
      server.send(400, "application/json", "{\"error\":\"Unknown command\"}");
    }
  } else {
    server.send(405, "application/json", "{\"error\":\"Method not allowed\"}");
  }
}


void setup() 
{
  pinMode(red_led,OUTPUT);
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi");

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

  Serial.println(" Connected!");

  Serial.print("the local IP is:-");
  Serial.println(WiFi.localIP());

  // Define endpoint
  server.on("/command", HTTP_POST, handleCommand);

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

}

void loop()
{
  //blink_led();

  server.handleClient();

}