//
//  ========================================================================
//  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 org.eclipse.jetty.http.HttpHeader;
import org.eclipse.jetty.http.HttpStatus;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;

public class RedirectRegexRuleTest extends AbstractRuleTestCase
{
    @BeforeEach
    public void init() throws Exception
    {
        start(false);
    }

    private void assertRedirectResponse(int expectedStatusCode, String expectedLocation) throws IOException
    {
        assertThat("Response status code", _response.getStatus(), is(expectedStatusCode));
        assertThat("Response location", _response.getHeader(HttpHeader.LOCATION.asString()), is(expectedLocation));
    }

    @Test
    public void testLocationWithReplacementGroupEmpty() throws IOException
    {
        RedirectRegexRule rule = new RedirectRegexRule();
        rule.setRegex("/my/dir/file/(.*)$");
        rule.setReplacement("http://www.mortbay.org/$1");

        // Resource is dir
        rule.matchAndApply("/my/dir/file/", _request, _response);
        assertRedirectResponse(HttpStatus.FOUND_302, "http://www.mortbay.org/");
    }

    @Test
    public void testLocationWithPathReplacement() throws IOException
    {
        RedirectRegexRule rule = new RedirectRegexRule();
        rule.setRegex("/documentation/(.*)$");
        rule.setReplacement("/docs/$1");

        // Resource is dir
        rule.matchAndApply("/documentation/top.html", _request, _response);
        assertRedirectResponse(HttpStatus.FOUND_302, "http://0.0.0.0/docs/top.html");
    }

    @Test
    public void testLocationWithReplacmentGroupSimple() throws IOException
    {
        RedirectRegexRule rule = new RedirectRegexRule();
        rule.setRegex("/my/dir/file/(.*)$");
        rule.setReplacement("http://www.mortbay.org/$1");

        // Resource is an image
        rule.matchAndApply("/my/dir/file/image.png", _request, _response);
        assertRedirectResponse(HttpStatus.FOUND_302, "http://www.mortbay.org/image.png");
    }

    @Test
    public void testLocationWithReplacementGroupDeepWithParams() throws IOException
    {
        RedirectRegexRule rule = new RedirectRegexRule();
        rule.setRegex("/my/dir/file/(.*)$");
        rule.setReplacement("http://www.mortbay.org/$1");

        // Resource is api with parameters
        rule.matchAndApply("/my/dir/file/api/rest/foo?id=100&sort=date", _request, _response);
        assertRedirectResponse(HttpStatus.FOUND_302, "http://www.mortbay.org/api/rest/foo?id=100&sort=date");
    }

    @Test
    public void testMovedPermanently() throws IOException
    {
        RedirectRegexRule rule = new RedirectRegexRule();
        rule.setRegex("/api/(.*)$");
        rule.setReplacement("http://api.company.com/$1");
        rule.setStatusCode(HttpStatus.MOVED_PERMANENTLY_301);

        // Resource is api with parameters
        rule.matchAndApply("/api/rest/foo?id=100&sort=date", _request, _response);
        assertRedirectResponse(HttpStatus.MOVED_PERMANENTLY_301, "http://api.company.com/rest/foo?id=100&sort=date");
    }
}
