/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.maven.cling.invoker.mvnsh;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.jline.console.CommandRegistry;
  
  import static java.util.Objects.requireNonNull;
  
  public class ShellCommandRegistryHolder implements AutoCloseable {
      private final List<CommandRegistry> commandRegistries;
  
      public ShellCommandRegistryHolder() {
          this.commandRegistries = new ArrayList<>();
      }
  
      public void addCommandRegistry(CommandRegistry commandRegistry) {
          requireNonNull(commandRegistry, "commandRegistry");
          this.commandRegistries.add(commandRegistry);
      }
  
      public CommandRegistry[] getCommandRegistries() {
          return commandRegistries.toArray(new CommandRegistry[0]);
      }
  
      @Override
      public void close() throws Exception {
          ArrayList<Exception> exceptions = new ArrayList<>();
          for (CommandRegistry commandRegistry : commandRegistries) {
              if (commandRegistry instanceof AutoCloseable closeable) {
                  try {
                      closeable.close();
                  } catch (Exception e) {
                      exceptions.add(e);
                  }
              }
          }
          if (!exceptions.isEmpty()) {
              IllegalStateException ex = new IllegalStateException("Could not close commandRegistries");
              exceptions.forEach(ex::addSuppressed);
              throw ex;
          }
      }
  }