/*
 * Copyright 2019 Google LLC.
 *
 * Licensed 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.google.cloud.tools.opensource.dashboard;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;

import org.apache.maven.project.ProjectBuildingException;
import org.codehaus.plexus.PlexusContainerException;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.eclipse.aether.artifact.Artifact;
import org.junit.Assert;
import org.junit.Test;

import com.google.cloud.tools.opensource.dependencies.RepositoryUtility;

public class BomTest {

  private static final Path CLOUD_OSS_BOM_PATH =
          Paths.get("..", "boms", "cloud-oss-bom", "pom.xml").toAbsolutePath();

  @Test
  public void testArtifactsExist()
      throws IOException, PlexusContainerException, ComponentLookupException, ProjectBuildingException {
    List<Artifact> artifacts = RepositoryUtility.readBom(CLOUD_OSS_BOM_PATH);
    for (Artifact artifact : artifacts) {
      assertReachable(buildMavenCentralUrl(artifact));
    }
  }

  private static String buildMavenCentralUrl(Artifact artifact) {
    return "https://repo1.maven.org/maven2/"
        + artifact.getGroupId().replace('.', '/')
        + "/"
        + artifact.getArtifactId()
        + "/"
        + artifact.getVersion()
        + "/";
  }

  private static void assertReachable(String url) throws IOException {
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setRequestMethod("HEAD");
    Assert.assertEquals("Could not reach " + url, 200, connection.getResponseCode());
  }
}
