/*
    * Copyright 2014 The Apache Software Foundation.
    *
    * 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 org.apache.archiva.webdav;
  
  import java.io.File;
  import java.io.IOException;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import org.apache.commons.io.FileUtils;
  import org.junit.rules.TestRule;
  import org.junit.runner.Description;
  import org.junit.runners.model.Statement;
  
  /**
   * Rule to help creating folder for repository based on testmethod name
   * @author Eric
   */
  public class ArchivaTemporaryFolderRule implements TestRule {
      private File d;
      private Description desc = Description.EMPTY;
  
      public void before() throws IOException {
          // hard coded maven target file
          File f1 = new File("target" + File.separator + "archivarepo" + File.separator + ArchivaTemporaryFolderRule.resumepackage(desc.getClassName()) + File.separator + desc.getMethodName());
          f1.mkdirs();
          Path p = Files.createDirectories(f1.toPath());
          d = p.toFile();
      }
  
      public File getRoot() {
          return d;
      }
  
      public void after() throws IOException {
          FileUtils.deleteDirectory(getRoot());
      }
  
      @Override
      public Statement apply(Statement base, Description description) {
          desc = description;
          return statement(base);
      }
  
      private Statement statement(final Statement base) {
          return new Statement() {
              @Override
              public void evaluate() throws Throwable {
                  before();
                  try {
                      base.evaluate();
                  } finally {
                      after();
                  }
              }
          };
      }
      /**
       * Return a filepath from FQN class name with only first char of package and classname
       * @param packagename
       * @return 
       */ 
      public static String resumepackage(String packagename) {
          StringBuilder sb = new StringBuilder();
          String[] p = packagename.split("\\.");
          for (int i = 0; i < p.length - 2; i++) 
          {
              sb.append(p[i].charAt(0)).append(File.separator);
          }
          sb.append(p[p.length - 1]);
          return sb.toString();
      }
      
  }