/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.server;

import static java.net.http.HttpClient.Redirect.NEVER;
import static java.net.http.HttpResponse.BodyHandlers.discarding;
import static javax.ws.rs.core.HttpHeaders.ACCEPT;
import static javax.ws.rs.core.HttpHeaders.LOCATION;
import static javax.ws.rs.core.MediaType.TEXT_HTML;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.List;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.neo4j.server.helpers.TestWebContainer;
import org.neo4j.server.helpers.WebContainerHelper;
import org.neo4j.test.server.ExclusiveWebContainerTestBase;

class RedirectToBrowserTestIT extends ExclusiveWebContainerTestBase {
    private static TestWebContainer webContainer;

    @BeforeAll
    static void startServer() throws Exception {
        webContainer = WebContainerHelper.createNonPersistentContainer();
    }

    @AfterAll
    static void stopServer() {
        if (webContainer != null) {
            webContainer.shutdown();
        }
    }

    @Test
    void shouldRedirectToBrowser() throws Exception {
        var response = sendGetRequest(ACCEPT, TEXT_HTML);

        assertEquals(303, response.statusCode());
        assertEquals(
                List.of(webContainer.getBaseUri() + "browser/"),
                response.headers().allValues(LOCATION));
    }

    @Test
    void shouldRedirectToBrowserUsingXForwardedHeaders() throws Exception {
        var response =
                sendGetRequest(ACCEPT, TEXT_HTML, "X-Forwarded-Host", "foo.bar:8734", "X-Forwarded-Proto", "https");

        assertEquals(303, response.statusCode());
        assertEquals(
                List.of("https://foo.bar:8734/browser/"), response.headers().allValues(LOCATION));
    }

    private static HttpResponse<Void> sendGetRequest(String... headers) throws Exception {
        var request = HttpRequest.newBuilder(webContainer.getBaseUri())
                .headers(headers)
                .GET()
                .build();

        var client = HttpClient.newBuilder().followRedirects(NEVER).build();

        return client.send(request, discarding());
    }
}
