/*
    * 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.mvnenc.goals;
  
  import java.util.List;
  import java.util.Map;
  import java.util.function.Consumer;
  
  import org.apache.maven.api.services.MessageBuilderFactory;
  import org.apache.maven.cling.invoker.mvnenc.EncryptContext;
  import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
  
  import static org.apache.maven.cling.invoker.mvnenc.EncryptInvoker.ERROR;
  
  /**
   * The support class for goal implementations that requires valid/workable config.
   */
  public abstract class ConfiguredGoalSupport extends GoalSupport {
      protected ConfiguredGoalSupport(MessageBuilderFactory messageBuilderFactory, SecDispatcher secDispatcher) {
          super(messageBuilderFactory, secDispatcher);
      }
  
      @Override
      public int execute(EncryptContext context) throws Exception {
          if (!validateConfiguration(context)) {
              context.terminal
                      .writer()
                      .println(messageBuilderFactory
                              .builder()
                              .error("Maven Encryption is not configured, run `mvnenc init` first.")
                              .build());
              return ERROR;
          }
          return doExecute(context);
      }
  
      protected boolean validateConfiguration(EncryptContext context) {
          SecDispatcher.ValidationResponse response = secDispatcher.validateConfiguration();
          if (!response.isValid() || context.invokerRequest.options().verbose().orElse(false)) {
              dumpResponse(context, "", response);
          }
          return response.isValid();
      }
  
      protected void dumpResponse(EncryptContext context, String indent, SecDispatcher.ValidationResponse response) {
          context.terminal
                  .writer()
                  .println(messageBuilderFactory
                          .builder()
                          .format(
                                  response.isValid()
                                          ? messageBuilderFactory
                                                  .builder()
                                                  .success("%sConfiguration validation of %s: %s")
                                                  .build()
                                          : messageBuilderFactory
                                                  .builder()
                                                  .failure("%sConfiguration validation of %s: %s")
                                                  .build(),
                                  indent,
                                  response.getSource(),
                                  response.isValid() ? "VALID" : "INVALID"));
          for (Map.Entry<SecDispatcher.ValidationResponse.Level, List<String>> entry :
                  response.getReport().entrySet()) {
              Consumer<String> consumer = s -> context.terminal
                      .writer()
                      .println(messageBuilderFactory.builder().info(s).build());
              if (entry.getKey() == SecDispatcher.ValidationResponse.Level.ERROR) {
                  consumer = s -> context.terminal
                          .writer()
                          .println(messageBuilderFactory.builder().error(s).build());
              } else if (entry.getKey() == SecDispatcher.ValidationResponse.Level.WARNING) {
                  consumer = s -> context.terminal
                          .writer()
                          .println(messageBuilderFactory.builder().warning(s).build());
              }
              for (String line : entry.getValue()) {
                  consumer.accept(indent + "  " + line);
              }
          }
          for (SecDispatcher.ValidationResponse subsystem : response.getSubsystems()) {
              dumpResponse(context, indent + "  ", subsystem);
          }
     }
 
     protected abstract int doExecute(EncryptContext context) throws Exception;
 }