/*
    * 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.env;
  
  import com.amazonaws.services.elasticbeanstalk.model.CreateConfigurationTemplateRequest;
  import com.amazonaws.services.elasticbeanstalk.model.CreateConfigurationTemplateResult;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.maven.plugin.AbstractMojoExecutionException;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  
  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Set;
  import java.util.TreeSet;
  
  import br.com.ingenieux.mojo.beanstalk.AbstractNeedsEnvironmentMojo;
  
  /**
   * <p>Tags an Environment</p>
   *
   * <p>Defaults to environmentRef-yyyyMMdd-nn, where 'nn' is incremented according to
   * availability.</p>
   *
   * @since 1.1.0
   */
  @Mojo(name = "tag-environment", requiresDirectInvocation = true)
  public class TagEnvironmentMojo extends AbstractNeedsEnvironmentMojo {
  
    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
  
    /**
     * Template Name to use
     */
    @Parameter(property = "beanstalk.templateName")
    String templateName;
  
    @Override
    protected Object executeInternal() throws AbstractMojoExecutionException {
      Set<String> configTemplates = new TreeSet<String>(super.getConfigurationTemplates(applicationName));
      String today = DATE_FORMAT.format(new Date());
  
      if (StringUtils.isBlank(templateName)) {
        int i = 1;
  
        do {
          templateName = String.format("%s-%s-%02d", curEnv.getEnvironmentName(), today, i++);
        } while (configTemplates.contains(templateName));
      }
  
      CreateConfigurationTemplateResult result =
          getService()
              .createConfigurationTemplate(
                  new CreateConfigurationTemplateRequest()
                      .withEnvironmentId(curEnv.getEnvironmentId())
                      .withTemplateName(templateName)
                      .withApplicationName(curEnv.getApplicationName()));
  
      getLog().info("Created config template " + templateName + " for environment " + curEnv.getEnvironmentId());
  
      return result;
    }
  }