package dk.thoerup.marketstats;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.Formatter;
import java.util.Locale;
import java.util.logging.Logger;

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

import net.spy.memcached.MemcachedClient;

import com.gc.android.market.api.MarketSession;
import com.gc.android.market.api.MarketSession.Callback;
import com.gc.android.market.api.model.Market.App;
import com.gc.android.market.api.model.Market.AppsRequest;
import com.gc.android.market.api.model.Market.AppsResponse;
import com.gc.android.market.api.model.Market.CommentsRequest;
import com.gc.android.market.api.model.Market.ResponseContext;


public class ShowStats extends HttpServlet {
	private static final long serialVersionUID = 1L;

	final int TIMEOUT = 30*60;
	static final Logger log = Logger.getLogger(ShowStats.class.getName());

	String login;
	String password;


	@Override
	public void init() throws ServletException {
		super.init();

		login = getServletContext().getInitParameter("login");
		password = getServletContext().getInitParameter("password");
	}

	protected String doLookup(String appId) throws IOException {
		MemcachedClient c = new MemcachedClient(new InetSocketAddress("localhost", 11211));


		String key = "marketstats:" + appId;
		String response = (String) c.get(key);

		if (response == null) {
			response = doLookupWorker(appId);
			c.set(key, TIMEOUT, response); 
			response += "<!-- new lookup -->";
		} else {
			response += "<!-- from memcached -->";
		}
		return response;
	}


	protected String doLookupWorker(String appId) {
		final StringBuilder sb = new StringBuilder();


		MarketSession session = new MarketSession();
		session.login(login,password);


		AppsRequest appsRequest = AppsRequest.newBuilder()
		.setAppId(appId)
		.setStartIndex(0).setEntriesCount(10)
		.setWithExtendedInfo(true)
		.build();

		CommentsRequest commentsRequest = CommentsRequest.newBuilder()
		.setAppId(appId)
		.setStartIndex(0)
		.setEntriesCount(10)
		.build();




		Callback<AppsResponse> appsCb = new Callback<AppsResponse>() {
			@Override
			public void onResult(ResponseContext context, AppsResponse response) {
				//System.out.println("Response : " + response);
				//sb.append("Response: " + response + "\n");

				Formatter form = new Formatter(sb);
				App app = response.getApp(0);
				sb.append( "<h2>" + app.getTitle() + "</h2>");
				sb.append("Ver: " + app.getVersion() + " (" + app.getVersionCode() + ")\n"  );
				sb.append("Ratingcount: " + app.getRatingsCount() + "\n");

				sb.append("Rating: "  );
				double rating = Double.parseDouble( app.getRating() );
				form.format("%.4f", rating);
				sb.append("\n");

				sb.append("Downloads: " + app.getExtendedInfo().getDownloadsCountText() + " (" + app.getExtendedInfo().getDownloadsCount() + ")\n" );

				sb.append("\n");

			}
		};

		ArrayList<CommentBean> commentBeans = new ArrayList<CommentBean>();

		CommentCallback commentsCb = new CommentCallback();
		commentsCb.setList( commentBeans ); 

		commentsCb.setLocale("en");
		session.setLocale( Locale.ENGLISH );

		session.append(appsRequest, appsCb);
		session.append(commentsRequest, commentsCb);
		session.flush();

		commentsCb.setLocale( "da" );
		session.setLocale( new Locale("da") );
		session.append(commentsRequest, commentsCb);
		session.flush();

		Collections.sort(commentBeans);

		sb.append("-----------------------------------------------------------------\n");
		for (CommentBean c : commentBeans) {
			sb.append("User: " + c.author + " ("  + c.locale + ")\n");
			sb.append("Rating: " + c.rating + "\n");
			sb.append("Time: " + new Date(c.time).toString() + "\n");
			sb.append( c.text + "\n");
			sb.append("\n");

		}


		return sb.toString();
	}

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String appId = request.getParameter("appId");

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.print( "<html><body><pre>" + doLookup(appId) + "</pre></body></html>" );
	}

}