import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class DailyQuizHttpPost extends HttpPost{
    static private final String DAILY_QUIZ_URL = "http://www.1point3acres.com/bbs/plugin.php?id=ahome_dayquestion:pop";
    static private final String DAILY_QUIZ_PAGE_URL = "http://www.1point3acres.com/bbs/plugin.php?id=ahome_dayquestion:pop";
    static private String PAYLOAD_FORMAT =
            "------WebKitFormBoundarybDMuZYRqRgOKYQWW\r\n" +
            "Content-Disposition: form-data; name=\"formhash\"\r\n" +
            "\r\n" +
            "formhash_to_replace\r\n" +
            "------WebKitFormBoundarybDMuZYRqRgOKYQWW\r\n" +
            "Content-Disposition: form-data; name=\"answer\"\r\n" +
            "\r\n" +
            "answer_to_replace\r\n" +
            "------WebKitFormBoundarybDMuZYRqRgOKYQWW\r\n" +
            "Content-Disposition: form-data; name=\"submit\"\r\n" +
            "\r\n" +
            "true\r\n" +
            "------WebKitFormBoundarybDMuZYRqRgOKYQWW--";

    private DailyQuizHttpPost(String formhash, String answer) throws UnsupportedEncodingException {
        super(DailyQuizHttpPost.DAILY_QUIZ_URL);

        /** set form data **/
        PAYLOAD_FORMAT = PAYLOAD_FORMAT.replace("formhash_to_replace", formhash);
        PAYLOAD_FORMAT = PAYLOAD_FORMAT.replace("answer_to_replace", answer);
//        StringEntity se = new StringEntity(payLoadLogin);
//        this.setEntity(new StringEntity(PAYLOAD_FORMAT, "UTF-8"));
        this.setEntity(new StringEntity(PAYLOAD_FORMAT));

        /** set headers **/
        this.setHeader("Origin", "http://www.1point3acres.com");
        this.setHeader("Referer", "http://www.1point3acres.com/bbs/");
        this.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36");
        this.setHeader("Host", "www.1point3acres.com");
        this.setHeader("Content-Type", "multipart/form-data; boundary=----WebKitFormBoundarybDMuZYRqRgOKYQWW"); // important header
    }

    static public HttpPost getNewInstance(org.apache.http.client.HttpClient client) {
        HttpPost signInHttpPost = null;
        try {
            String formhash = getFormHash(client);
            if (!formhash.isEmpty()) {
                signInHttpPost = new DailyQuizHttpPost(formhash, "3");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return signInHttpPost;

    }

    static private String getFormHash(org.apache.http.client.HttpClient client) {
        String formhash = "";
        try {
            HttpGet httpGetSignIn = new HttpGet(DailyQuizHttpPost.DAILY_QUIZ_PAGE_URL);
            HttpResponse SignInRespGet = client.execute(httpGetSignIn);
            String resStrGetSignin = EntityUtils.toString(SignInRespGet.getEntity());

            if (resStrGetSignin.contains("已经参加过")
                || resStrGetSignin.contains("您今天已经参加过答题")) {
                System.out.println("您今天已经参加过答题");
            }else {
                Pattern pattern = Pattern.compile("<input type=\"hidden\" name=\"formhash\" value=\"(.*?)\">");
                Matcher matcher = pattern.matcher(resStrGetSignin);

                if (matcher.find()) {
                    formhash = matcher.group(1);
                    System.out.println(formhash);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return formhash;
    }

}