package com.yuji.tdb;

import java.io.IOException;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import twitter4j.Query;
import twitter4j.QueryResult;
import twitter4j.Status;
import twitter4j.Tweet;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.OAuthAuthorization;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;

import com.yuji.tdb.common.CommonUtil;

@SuppressWarnings("serial")
public class TrainDelayBotServlet extends HttpServlet {
	private static RequestToken requestToken = null;
	private static AccessToken accessToken = null;
	private static String consumerKey = null;
	private static String consumerSecret = null;

	public void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws IOException {
		resp.setContentType("text/plain");
		resp.getWriter().println(" traindelaybot Hello, world");

		String consumerKey = req.getParameter("key");
		String consumerSecret = req.getParameter("secret");
		String result = req.getParameter("result");
		if (!CommonUtil.isNull(consumerKey)
				&& !CommonUtil.isNull(consumerSecret)) {
			setOAuthAuthorization(req, resp, consumerKey, consumerSecret);
			return;
		} else if (!CommonUtil.isNull(result)) {
			resultOAuthAuthorization(req, resp);
			return;
		}

		main();
	}

	private void setOAuthAuthorization(HttpServletRequest req,
			HttpServletResponse resp, String consumerKey, String consumerSecret) {
		try {
			ConfigurationBuilder confBuilder = new ConfigurationBuilder();

			confBuilder.setDebugEnabled(true);
			confBuilder.setOAuthConsumerKey(consumerKey);
			confBuilder.setOAuthConsumerSecret(consumerSecret);
			// Configuration conf = ConfigurationContext.getInstance();
			Configuration conf = confBuilder.build();

			OAuthAuthorization oauth = new OAuthAuthorization(conf);
			// Twitterの認証画面からの戻り先を指定します。
			// AccessTokenコントローラを指定します。
			String callbackURL = "http://localhost:8888/traindelaybot?result=yes";
			// RequestToken requestToken =
			// oauth.getOAuthRequestToken(callbackURL);
			requestToken = oauth.getOAuthRequestToken(callbackURL);
			// RequestTokenをセッションに保存しておきます。
			// sessionScope("RequestToken", requestToken);
			// Twitterの認証画面へリダイレクトします。

			TrainDelayBotServlet.consumerKey = consumerKey;
			TrainDelayBotServlet.consumerSecret = consumerSecret;

			resp.sendRedirect(requestToken.getAuthenticationURL());
		} catch (TwitterException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	private void resultOAuthAuthorization() {
		try {
			// Twitter twitter = new TwitterFactory().getInstance();
			if (requestToken == null || CommonUtil.isNull(consumerKey)
					|| CommonUtil.isNull(consumerSecret)) {
				return;
			}
			// String tokenKey = requestToken.getToken();
			// String tokenSecret = requestToken.getTokenSecret();

			ConfigurationBuilder confBuilder = new ConfigurationBuilder();
			confBuilder.setDebugEnabled(true).setOAuthConsumerKey(consumerKey)
					.setOAuthConsumerSecret(consumerSecret);
			TwitterFactory factory = new TwitterFactory(confBuilder.build());
			Twitter twitter = factory.getInstance();

			accessToken = twitter.getOAuthAccessToken(requestToken);
		} catch (TwitterException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	private void main() {

		String text = "京浜東北";

		try {
			Calendar cal = Calendar.getInstance();
			Date date = cal.getTime();
			String message = "テスト " + date.toString();

			// AccessToken accessToken = new AccessToken(tokenKey, tokenSecret);
			// Twitter twitter = factory.getInstance();

			Status status = twitter.updateStatus(message);

			// Twitter twitter = new TwitterFactory().getInstance();
			QueryResult result = twitter.search(new Query(text));
			List<Tweet> tweets = result.getTweets();
			for (Tweet tweet : tweets) {
				System.out.println("@" + tweet.getFromUser() + " - "
						+ tweet.getText());
			}
		} catch (TwitterException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}