package org.gcube.dataharvest.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

import org.gcube.dataharvest.dao.Dao;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Utils {
	private static Logger logger = LoggerFactory.getLogger(Utils.class);

	public static Calendar dateToCalendar(Date date) {
		Calendar cal = null;
		cal = Calendar.getInstance();
		cal.setTime(date);
		return cal;
	}

	public static String dateToString(Date date) {
		DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
		return formatter.format(date);
	}

	public static String dateToStringWithTZ(Date date) {
		DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
		return formatter.format(date) + "Z";
	}

	public static String getJson(String url) throws MalformedURLException, IOException {
		URL address = new URL(url);
		HttpURLConnection connection = (HttpURLConnection) address.openConnection();
		BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
		String json = "", line = "";

		while (line != null) {
			line = reader.readLine();
			if (line != null)
				json += line.trim();
		}
		return json;
	}

	// il seguente array deve essere formato dinamicamente
//	public static String[] soBigDataContexts = { "/d4science.research-infrastructures.eu/gCubeApps/SoBigData.eu",
//			"/d4science.research-infrastructures.eu/gCubeApps/SoBigData.it",
//			"/d4science.research-infrastructures.eu/SoBigData/SoBigDataLab",
//			"/d4science.research-infrastructures.eu/SoBigData/ResourceCatalogue",
//			"/d4science.research-infrastructures.eu/SoBigData/CityOfCitizens",
//			"/d4science.research-infrastructures.eu/SoBigData/SocietalDebates",
//			"/d4science.research-infrastructures.eu/SoBigData/WellBeingAndEconomy",
//			"/d4science.research-infrastructures.eu/SoBigData/SMAPH",
//			"/d4science.research-infrastructures.eu/SoBigData/TagMe" };

}