/*
    * 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;
  
  import java.util.List;
  import java.util.ListIterator;
  import java.util.Optional;
  import java.util.function.Consumer;
  import java.util.function.UnaryOperator;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.Option;
  import org.apache.commons.cli.ParseException;
  import org.apache.maven.api.cli.Options;
  import org.apache.maven.api.cli.ParserRequest;
  import org.apache.maven.api.cli.mvnenc.EncryptOptions;
  import org.apache.maven.api.services.Interpolator;
  import org.apache.maven.api.services.InterpolatorException;
  import org.apache.maven.cling.invoker.CommonsCliOptions;
  
  import static org.apache.maven.cling.invoker.Utils.createInterpolator;
  
  /**
   * Implementation of {@link EncryptOptions} (base + mvnenc).
   */
  public class CommonsCliEncryptOptions extends CommonsCliOptions implements EncryptOptions {
      public static CommonsCliEncryptOptions parse(String[] args) throws ParseException {
          CLIManager cliManager = new CLIManager();
          return new CommonsCliEncryptOptions(Options.SOURCE_CLI, cliManager, cliManager.parse(args));
      }
  
      protected CommonsCliEncryptOptions(String source, CLIManager cliManager, CommandLine commandLine) {
          super(source, cliManager, commandLine);
      }
  
      private static CommonsCliEncryptOptions interpolate(
              CommonsCliEncryptOptions options, UnaryOperator<String> callback) {
          try {
              // now that we have properties, interpolate all arguments
              Interpolator interpolator = createInterpolator();
              CommandLine.Builder commandLineBuilder = new CommandLine.Builder();
              commandLineBuilder.setDeprecatedHandler(o -> {});
              for (Option option : options.commandLine.getOptions()) {
                  if (!CLIManager.USER_PROPERTY.equals(option.getOpt())) {
                      List<String> values = option.getValuesList();
                      for (ListIterator<String> it = values.listIterator(); it.hasNext(); ) {
                          it.set(interpolator.interpolate(it.next(), callback));
                      }
                  }
                  commandLineBuilder.addOption(option);
              }
              for (String arg : options.commandLine.getArgList()) {
                  commandLineBuilder.addArg(interpolator.interpolate(arg, callback));
              }
              return new CommonsCliEncryptOptions(
                      options.source, (CLIManager) options.cliManager, commandLineBuilder.build());
          } catch (InterpolatorException e) {
              throw new IllegalArgumentException("Could not interpolate CommonsCliOptions", e);
          }
      }
  
      @Override
      public Optional<Boolean> force() {
          if (commandLine.hasOption(CLIManager.FORCE)) {
              return Optional.of(Boolean.TRUE);
          }
          return Optional.empty();
      }
  
      @Override
      public Optional<Boolean> yes() {
          if (commandLine.hasOption(CLIManager.YES)) {
              return Optional.of(Boolean.TRUE);
          }
          return Optional.empty();
      }
  
      @Override
      public Optional<List<String>> goals() {
          if (!commandLine.getArgList().isEmpty()) {
              return Optional.of(commandLine.getArgList());
          }
          return Optional.empty();
     }
 
     @Override
     public EncryptOptions interpolate(UnaryOperator<String> callback) {
         return interpolate(this, callback);
     }
 
     @Override
     public void displayHelp(ParserRequest request, Consumer<String> printStream) {
         super.displayHelp(request, printStream);
         printStream.accept("");
         // we have no DI here (to discover)
         printStream.accept("Goals:");
         printStream.accept("  diag - display encryption configuration diagnostic");
         printStream.accept("  init - wizard to configure encryption (interactive only)");
         printStream.accept("  encrypt - encrypts input");
         printStream.accept("  decrypt - decrypts encrypted input");
         printStream.accept("");
     }
 
     protected static class CLIManager extends CommonsCliOptions.CLIManager {
         public static final String FORCE = "f";
         public static final String YES = "y";
 
         @Override
         protected void prepareOptions(org.apache.commons.cli.Options options) {
             super.prepareOptions(options);
             options.addOption(Option.builder(FORCE)
                     .longOpt("force")
                     .desc("Should overwrite without asking any configuration?")
                     .build());
             options.addOption(Option.builder(YES)
                     .longOpt("yes")
                     .desc("Should imply user answered \"yes\" to all incoming questions?")
                     .build());
         }
     }
 }