/*
    * 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.archetype.ui.generation;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import java.util.regex.Pattern;
  
  import org.apache.maven.archetype.ui.ArchetypeConfiguration;
  import org.codehaus.plexus.components.interactivity.Prompter;
  import org.codehaus.plexus.components.interactivity.PrompterException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  @Named("default")
  @Singleton
  public class DefaultArchetypeGenerationQueryer implements ArchetypeGenerationQueryer {
      private static final Logger LOGGER = LoggerFactory.getLogger(DefaultArchetypeGenerationQueryer.class);
  
      @Inject
      private Prompter prompter;
  
      @Override
      public boolean confirmConfiguration(ArchetypeConfiguration archetypeConfiguration) throws PrompterException {
          StringBuilder query = new StringBuilder("Confirm properties configuration:\n");
  
          for (String property : archetypeConfiguration.getRequiredProperties()) {
              query.append(property + ": " + archetypeConfiguration.getProperty(property) + "\n");
          }
  
          String answer = prompter.prompt(query.toString(), "Y");
  
          return "Y".equalsIgnoreCase(answer);
      }
  
      @Override
      public String getPropertyValue(String requiredProperty, String defaultValue, Pattern validationRegex)
              throws PrompterException {
          StringBuilder queryBuilder = new StringBuilder();
          queryBuilder.append("Define value for property '");
          queryBuilder.append(requiredProperty);
          queryBuilder.append('\'');
  
          if (validationRegex != null) {
              queryBuilder.append(" (should match expression '");
              queryBuilder.append(validationRegex);
              queryBuilder.append("')");
          }
  
          String query = queryBuilder.toString();
          String answer;
          boolean validAnswer = false;
  
          do {
              if ((defaultValue != null) && !defaultValue.equals("null")) {
                  answer = prompter.prompt(query, defaultValue);
              } else {
                  answer = prompter.prompt(query);
              }
  
              if (validationRegex == null || validationRegex.matcher(answer).matches()) {
                  validAnswer = true;
              } else {
                  query = "Value does not match the expression, please try again";
              }
  
          } while (!validAnswer);
  
          return answer;
      }
  
      public void setPrompter(Prompter prompter) {
          this.prompter = prompter;
      }
  }