//
//  ========================================================================
//  Copyright (c) 1995-2020 Mort Bay Consulting Pty Ltd and others.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.rewrite.handler;

import java.io.IOException;
import java.util.Iterator;

import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class HeaderRegexRuleTest extends AbstractRuleTestCase
{

    private HeaderRegexRule _rule;

    @Before
    public void init() throws Exception
    {
        start(false);
        _rule = new HeaderRegexRule();
        _rule.setRegex("\\*");
    }

    @Test
    public void testHeaderWithTextValues() throws IOException
    {
        // different keys
        String headers[][] =
        {
        { "hnum#1", "test1" },
        { "hnum#2", "2test2" },
        { "hnum#3", "test3" } };
        assertHeaders(headers);
    }

    @Test
    public void testHeaderWithNumberValues() throws IOException
    {
        String headers[][] =
        {
        { "hello", "1" },
        { "hello", "-1" },
        { "hello", "100" },
        { "hello", "100" },
        { "hello", "100" },
        { "hello", "100" },
        { "hello", "100" },
        { "hello1", "200" } };
        assertHeaders(headers);
    }

    @Test
    public void testHeaderOverwriteValues() throws IOException
    {
        String headers[][] =
        {
        { "size", "100" },
        { "size", "200" },
        { "size", "300" },
        { "size", "400" },
        { "size", "500" },
        { "title", "abc" },
        { "title", "bac" },
        { "title", "cba" },
        { "title1", "abba" },
        { "title1", "abba1" },
        { "title1", "abba" },
        { "title1", "abba1" } };
        assertHeaders(headers);
        Iterator<String> e = _response.getHeaders("size").iterator();
        int count = 0;
        while (e.hasNext())
        {
            e.next();
            count++;
        }
        assertEquals(1,count);
        assertEquals("500",_response.getHeader("size"));
        assertEquals("cba",_response.getHeader("title"));
        assertEquals("abba1",_response.getHeader("title1"));
    }

    @Test
    public void testMatch() throws Exception
    {
        _rule.setRegex("/my/dir/file/(.*)$");
        _rule.setName("cache-control");
        _rule.setValue("no-store");
        _rule.matchAndApply("/my/dir/file/",_request,_response);
        assertEquals("no-store",_response.getHeader("cache-control"));
    }

    @Test
    public void testNotMatch() throws Exception
    {
        reset();
        _rule.setRegex("/my/dir/file/(.*)$");
        _rule.setName("cache-control");
        _rule.setValue("no-store");
        _rule.matchAndApply("/my/dir/file_not_match/",_request,_response);
        assertEquals(null,_response.getHeader("cache-control"));
    }

    private void assertHeaders(String headers[][]) throws IOException
    {
        for (String[] header : headers)
        {
            _rule.setName(header[0]);
            _rule.setValue(header[1]);
            _rule.apply(null,_request,_response,null);
            assertEquals(header[1],_response.getHeader(header[0]));
        }
    }
}
