/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package pl;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PUT;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.MediaType;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import java.net.HttpURLConnection;
import java.util.zip.ZipInputStream;
import javax.xml.namespace.QName;

/**
 * REST Web Service
 *
 * @author Kacper
 */
@Path("pl")
public class GUService {

    @Context
    private UriInfo context;

    @GET
    @Path("/{street}")
    public int getStreet(@PathParam("street") String street) throws IOException {
        try {
            return readZipFile(street, "", "");
        } catch (Exception ex) {
            return 0;
        }
    }

    @GET
    @Path("/{voivodeship}/{street}")
    public int getVoivodeship(@PathParam("voivodeship") String voivodeship, @PathParam("street") String street) {
        int voivodeshipCodeLength = voivodeship.length();

        try {
            switch (voivodeshipCodeLength) {
                case 2:
                    return readZipFile(street, voivodeship, "");
            }
        } catch (Exception ex) {

        }

        return 0;
    }

    @GET
    @Path("/xx/yy/{street}")
    public void getVoivodeshipAndCounty(@PathParam("street") String street) {

    }

    public int readZipFile(String street, String voivodeship, String county) throws IOException, XMLStreamException {
        int result = 0;

        String url = "http://cuda.iti.pk.edu.pl/ULIC_Urzedowy_2018-01-18.zip";
        HttpURLConnection httpConnection = (HttpURLConnection) new URL(url).openConnection();
        InputStream stream = httpConnection.getInputStream();
        ZipInputStream zis = new ZipInputStream(stream);
        for (ZipEntry e; (e = zis.getNextEntry()) != null;) {
            if (e.getName().contains(".xml")) {
                XMLInputFactory inputFactory = XMLInputFactory.newInstance();
                XMLStreamReader xMLInputFactory = inputFactory.createXMLStreamReader(zis);

                while (xMLInputFactory.hasNext()) {
                    xMLInputFactory.next();
                    int event = xMLInputFactory.getEventType();

                    if (event == XMLStreamConstants.START_ELEMENT) {
                        try {
                            String rowName = xMLInputFactory.getLocalName();
                            if (rowName == "WOJ") {
                                String text = xMLInputFactory.getElementText();
                                result++;
                            }
//                            if ("row".equals(rowName)) {
//                                String voivodeshipName = "";
//                                String streetName = "";
//                                boolean voivodeShipFound = false;
//                                boolean streetFound = false;

//                                while (!voivodeShipFound || !streetFound) {
//                                    try {
//                                        xMLInputFactory.next();
//
//                                        if (xMLInputFactory.getEventType() == XMLStreamConstants.START_ELEMENT) {
//                                            String tagName = xMLInputFactory.getLocalName();
//
//                                            if ("WOJ".equals(tagName)) {
//                                                voivodeShipFound = true;
//                                                voivodeshipName = xMLInputFactory.getElementText();
//                                            }
//
//                                            if ("NAZWA_1".equals(tagName)) {
//                                                streetFound = true;
//                                                streetName = xMLInputFactory.getElementText();
//                                            }
//                                        }
//                                    } catch (Exception ex) {
//                                        int error = 1;
//                                    }
//
//                                }
//                                if (voivodeshipName == voivodeship && streetName == street) {
//                                    result++;
//                                }
//
//                            }
                        } catch (Exception ex) {
                            int test = 0;
                        }

                    }
                }
            }
        }

        return result;

    }
}