package com.example;

// import the required classes
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;

import java.util.List;
import java.util.Random;

public class Main {
    public static void main(String[] args) {
        // define a list of User-Agent strings
        List<String> userAgents = List.of(
            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36",
            "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36",
            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"
            // add more User-Agent strings as needed
        );

        // randomly select UA from the list
        Random random = new Random();
        String randomUserAgent = userAgents.get(random.nextInt(userAgents.size()));

        // create an instance of HttpClient
        HttpClient client = HttpClient.newHttpClient();

        // build an HTTP request with a randomly selected User-Agent header
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://httpbin.io/user-agent"))
            .header("User-Agent", randomUserAgent) // Set a random User-Agent header
            .build();

        // send request asynchronously and print response to the console
        client.sendAsync(request, BodyHandlers.ofString())
            .thenApply(HttpResponse::body)
            .thenAccept(System.out::println)
            .join();
    }
}