// import the required libraries
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using TwoCaptcha.Captcha;

namespace TwoCaptcha
{
    public class Scraper
    {
        static void Main(string[] args)
        {
            // set up ChromeDriver
            IWebDriver driver = new ChromeDriver();

            // navigate to the target url
            string target_url = "https://www.google.com/recaptcha/api2/demo";
            driver.Navigate().GoToUrl(target_url);

            // create a new TwoCaptcha instance
            TwoCaptcha solver = new TwoCaptcha("YOUR_API_KEY");

            // create a new instance of the ReCaptcha class
            ReCaptcha captcha = new ReCaptcha();
            // set the site key for the ReCaptcha
            captcha.SetSiteKey("6Le-wvkSAAAAAPBMRTvw0Q4Muexq9bi0DJwx_mJ-");
            // set the URL of the target webpage where the ReCaptcha is located
            captcha.SetUrl(target_url);

            // declare solution variable
            string solution = null;

            try
            {
                // call the Solve method to solve the ReCaptcha
                solver.Solve(captcha).Wait();
                solution = captcha.Code;
                // print the captcha solution
                Console.WriteLine("Captcha solved: " + solution);
            }
            catch (AggregateException e)
            {
                // if an error occurs during captcha solving, catch the AggregateException and print the error message
                Console.WriteLine("Error occurred: " + e.InnerExceptions.First().Message);
            }

            // select g-recaptcha-response element
            IWebElement recaptchaResponseElement = driver.FindElement(By.Id("g-recaptcha-response"));
            // set the value of selected element to the CAPTCHA solution
            ((IJavaScriptExecutor)driver).ExecuteScript($"arguments[0].value = '{solution}';", recaptchaResponseElement);

            // click the submit button
            IWebElement submitButton = driver.FindElement(By.CssSelector("#recaptcha-demo-submit"));
            submitButton.Click();

            // take a screenshot
            ((ITakesScreenshot)driver).GetScreenshot().SaveAsFile("screenshot.png");

            // close the browser
            driver.Quit();
        }
    }
}