/*
    * SPDX-FileCopyrightText: Copyright (c) 2013-2025 Yegor Bugayenko
    * SPDX-License-Identifier: MIT
    */
   package com.jcabi.github;
   
   import com.jcabi.aspects.RetryOnFailure;
   import com.jcabi.log.Logger;
   import java.io.IOException;
  import java.net.BindException;
  import java.net.InetSocketAddress;
  import java.net.ServerSocket;
  import org.junit.jupiter.api.Assumptions;
  import org.junit.jupiter.api.extension.ExtensionContext;
  import org.junit.jupiter.api.extension.InvocationInterceptor;
  import org.junit.jupiter.api.extension.ReflectiveInvocationContext;
  
  /**
   * Test resource for skipping tests when random port is busy.
   * @since 0.8
   */
  public class RandomPort implements InvocationInterceptor {
      @Override
      public final void interceptTestMethod(
          final Invocation<Void> invocation,
          final ReflectiveInvocationContext<java.lang.reflect.Method> context,
          final ExtensionContext extension
      ) throws Throwable {
          try {
              invocation.proceed();
          } catch (final BindException ignored) {
              Logger.warn(
                  this,
                  String.format(
                      "Test %s skipped due to no available ports",
                      extension.getDisplayName()
                  )
              );
              Assumptions.assumeTrue(false);
          }
      }
  
      /**
       * Returns available port number.
       * @return Available port number
       * @throws IOException in case of IO error.
       * @checkstyle NonStaticMethodCheck (5 lines)
       */
      @RetryOnFailure
      @SuppressWarnings("PMD.ProhibitPublicStaticMethods")
      public static int port() throws IOException {
          try (ServerSocket socket = new ServerSocket()) {
              socket.setReuseAddress(true);
              socket.bind(
                  new InetSocketAddress("localhost", 0)
              );
              return socket.getLocalPort();
          }
      }
  }