package org.gcube.dataharvest.harvester;

import java.io.IOException;
import java.net.MalformedURLException;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import org.gcube.dataharvest.datamodel.Harvest;
import org.gcube.dataharvest.utils.Utils;
import org.json.JSONArray;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SocialHarvester extends BasicHarvester {
	private final String CATEGORY_NAME = "Accounting";
	private static Logger logger = LoggerFactory.getLogger(VreUsersHarvester.class);
	private int likes, replies, posts;
	private long from = 0, to = 0;

	public SocialHarvester(String start, String end) throws ParseException {
		super(start, end);
		this.from = startDate.getTime();
		this.to = endDate.getTime();
	}

	public SocialHarvester(Date start, Date end) throws ParseException {
		super(start, end);
		this.from = startDate.getTime();
		this.to = endDate.getTime();
	}

	@Override
	public List<Harvest> getData() throws Exception {
		ArrayList<Harvest> data = new ArrayList<Harvest>();
		Properties props = readServiceEndpoint();
		String[] vres = getActiveVREs(true);
		for (String vre : vres) {
			try {
				logger.debug("Working on VRE: " + vre);

				String key = vre; // vre.substring(vre.lastIndexOf("/") + 1);
				String token = props.getProperty(key);
				//System.out.println(key + ":" + token);
				getJson(token);
				//getFinalResult();
				Harvest harvest = new Harvest(Harvest.SOCIAL_LIKES, vre, likes);
				data.add(harvest);
				logger.debug(harvest.toString());

				harvest = new Harvest(Harvest.SOCIAL_POSTS, vre, posts);
				data.add(harvest);
				logger.debug(harvest.toString());
				
				harvest = new Harvest(Harvest.SOCIAL_REPLIES, vre, replies);
				data.add(harvest);
				logger.debug(harvest.toString());
			} catch (Exception x) {
				logger.error("SocialHarvester::getJson. " + vre + ". " + x.getLocalizedMessage());
			}
		}
		return data;
	}

	private void getJson(String token) throws MalformedURLException, IOException {
		likes = replies = posts = 0;
		// la seguente stringa deve essere letta dinamicamente
		String url = "https://socialnetworking1.d4science.org/social-networking-library-ws/rest/2/posts/get-posts-vre?gcube-token=";
		JSONObject jsonObject = new JSONObject(Utils.getJson(url + token));

		Boolean success = (Boolean) jsonObject.get("success");
		if (success == false) {
			String message = "getJson() on token: " + token + " success=false";
			logger.error(message);
			throw new IOException(message);
		}

		JSONArray res = jsonObject.getJSONArray("result");
		int len = res.length();
		
		for (int i = 0; i < len; i++) {
			JSONObject item = res.getJSONObject(i);
			long time = item.getLong("time");
			//System.out.println(from + " - " + time + " - " + to );
			if ((from <= time) && (time <= to)) {
				posts++;
				replies += item.getInt("comments_no");
				likes += item.getInt("likes_no");
			}
		}
	}

/**/
	public static void main(String[] argv) {
		try {
			SocialHarvester a = new SocialHarvester("2018-01-01 00:00:00", "2018-01-31 23:59:59");
			List<Harvest> list = a.getData();
			for (Harvest l : list) {
				System.out.println(l.toString());
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}/**/
}