/*
 * Copyright 2010-2011 Ning, Inc.
 *
 * Ning licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.ning.billing.catalog.io;

import javax.xml.bind.JAXBException;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Iterator;
import java.util.List;

import org.joda.time.DateTime;
import org.testng.annotations.Test;
import org.xml.sax.SAXException;

import com.google.common.io.Resources;
import com.ning.billing.catalog.StandaloneCatalog;
import com.ning.billing.catalog.VersionedCatalog;
import com.ning.billing.catalog.api.InvalidConfigException;
import com.ning.billing.lifecycle.KillbillService.ServiceException;
import com.ning.billing.util.clock.DefaultClock;

import static org.testng.AssertJUnit.assertEquals;

public class TestVersionedCatalogLoader {
    private final VersionedCatalogLoader loader = new VersionedCatalogLoader(new DefaultClock());


    @Test(enabled = true)
    public void testAppendToURI() throws MalformedURLException, IOException, URISyntaxException {
        final URL u1 = new URL("http://www.ning.com/foo");
        assertEquals("http://www.ning.com/foo/bar", loader.appendToURI(u1, "bar").toString());

        final URL u2 = new URL("http://www.ning.com/foo/");
        assertEquals("http://www.ning.com/foo/bar", loader.appendToURI(u2, "bar").toString());

    }


    @Test(enabled = true)
    public void testFindXmlFileReferences() throws MalformedURLException, URISyntaxException {
        final String page = "dg.xml\n" +
                "replica.foo\n" +
                "snv1/\n" +
                "viking.xml\n";
        final List<URI> urls = loader.findXmlFileReferences(page, new URL("http://ning.com/"));
        assertEquals(2, urls.size());
        assertEquals("http://ning.com/dg.xml", urls.get(0).toString());
        assertEquals("http://ning.com/viking.xml", urls.get(1).toString());

    }

    @Test(enabled = true)
    public void testExtractHrefs() {
        final String page = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">" +
                "<html>" +
                " <head>" +
                "  <title>Index of /config/trunk/xno</title>" +
                " </head>" +
                " <body>" +
                "<h1>Index of /config/trunk/xno</h1>" +
                "<ul><li><a href=\"/config/trunk/\"> Parent Directory</a></li>" +
                "<li><a href=\"dg.xml\"> dg.xml</a></li>" +
                "<li><a href=\"replica.foo\"> replica/</a></li>" +
                "<li><a href=\"replica2/\"> replica2/</a></li>" +
                "<li><a href=\"replica_dyson/\"> replica_dyson/</a></li>" +
                "<li><a href=\"snv1/\"> snv1/</a></li>" +
                "<li><a href=\"viking.xml\"> viking.xml</a></li>" +
                "</ul>" +
                "<address>Apache/2.2.3 (CentOS) Server at <a href=\"mailto:kate@ning.com\">gepo.ningops.net</a> Port 80</address>" +
                "</body></html>";
        final List<String> hrefs = loader.extractHrefs(page);
        assertEquals(8, hrefs.size());
        assertEquals("/config/trunk/", hrefs.get(0));
        assertEquals("dg.xml", hrefs.get(1));
    }

    @Test(enabled = true)
    public void testFindXmlUrlReferences() throws MalformedURLException, URISyntaxException {
        final String page = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">" +
                "<html>" +
                " <head>" +
                "  <title>Index of /config/trunk/xno</title>" +
                " </head>" +
                " <body>" +
                "<h1>Index of /config/trunk/xno</h1>" +
                "<ul><li><a href=\"/config/trunk/\"> Parent Directory</a></li>" +
                "<li><a href=\"dg.xml\"> dg.xml</a></li>" +
                "<li><a href=\"replica.foo\"> replica/</a></li>" +
                "<li><a href=\"replica2/\"> replica2/</a></li>" +
                "<li><a href=\"replica_dyson/\"> replica_dyson/</a></li>" +
                "<li><a href=\"snv1/\"> snv1/</a></li>" +
                "<li><a href=\"viking.xml\"> viking.xml</a></li>" +
                "</ul>" +
                "<address>Apache/2.2.3 (CentOS) Server at <a href=\"mailto:kate@ning.com\">gepo.ningops.net</a> Port 80</address>" +
                "</body></html>";
        final List<URI> uris = loader.findXmlUrlReferences(page, new URL("http://ning.com/"));
        assertEquals(2, uris.size());
        assertEquals("http://ning.com/dg.xml", uris.get(0).toString());
        assertEquals("http://ning.com/viking.xml", uris.get(1).toString());

    }

    @Test(enabled = true)
    public void testLoad() throws MalformedURLException, IOException, SAXException, InvalidConfigException, JAXBException, TransformerException, URISyntaxException, ServiceException {
        final VersionedCatalog c = loader.load(Resources.getResource("versionedCatalog").toString());
        assertEquals(3, c.size());
        final Iterator<StandaloneCatalog> it = c.iterator();
        DateTime dt = new DateTime("2011-01-01T00:00:00+00:00");
        assertEquals(dt.toDate(), it.next().getEffectiveDate());
        dt = new DateTime("2011-02-02T00:00:00+00:00");
        assertEquals(dt.toDate(), it.next().getEffectiveDate());
        dt = new DateTime("2011-03-03T00:00:00+00:00");
        assertEquals(dt.toDate(), it.next().getEffectiveDate());
    }
}
