/*
    * Copyright (c) 2016 ingenieux Labs
    *
    * Licensed 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 br.com.ingenieux.mojo.beanstalk.config;
  
  import com.amazonaws.services.elasticbeanstalk.model.DescribeConfigurationSettingsRequest;
  import com.amazonaws.services.elasticbeanstalk.model.EnvironmentDescription;
  
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  
  import java.util.Collection;
  
  import br.com.ingenieux.mojo.aws.util.GlobUtil;
  import br.com.ingenieux.mojo.beanstalk.AbstractNeedsEnvironmentMojo;
  
  import static org.apache.commons.lang.StringUtils.isNotBlank;
  
  /**
   * Returns the Configuration Settings
   *
   * See the <a href= "http://docs.amazonwebservices.com/elasticbeanstalk/latest/api/API_DescribeConfigurationSettings.html"
   * >DescribeConfigurationSettings API</a> call.
   *
   * @since 0.2.0
   */
  @Mojo(name = "describe-configuration-settings")
  public class DescribeConfigurationSettingsMojo extends AbstractNeedsEnvironmentMojo {
  
    /**
     * Template Name
     */
    @Parameter(property = "beanstalk.templateName")
    String templateName;
  
    @Override
    protected EnvironmentDescription handleResults(Collection<EnvironmentDescription> environments) throws MojoExecutionException {
      try {
        return super.handleResults(environments);
      } catch (Exception exc) {
        // Don't care - We're an exception to the rule, you know.
  
        return null;
      }
    }
  
    protected Object executeInternal() throws MojoExecutionException, MojoFailureException {
      boolean bTemplateNameDefined = isNotBlank(templateName) && !GlobUtil.hasWildcards(templateName);
  
      DescribeConfigurationSettingsRequest req = new DescribeConfigurationSettingsRequest().withApplicationName(applicationName);
  
      if (bTemplateNameDefined) {
        req.withTemplateName(templateName);
      } else if (null != curEnv) {
        req.withEnvironmentName(curEnv.getEnvironmentName());
      } else {
        getLog().warn("You must supply a templateName or environmentName. Ignoring");
  
        return null;
      }
  
      getLog().info("Request: " + req);
  
      return getService().describeConfigurationSettings(req);
    }
  }