/*
    * 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.scm.tck.command.update;
  
  import java.io.File;
  import java.util.Date;
  import java.util.Iterator;
  import java.util.List;
  import java.util.TreeSet;
  
  import org.apache.commons.lang3.StringUtils;
  import org.apache.maven.scm.ChangeSet;
  import org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.ScmTckTestCase;
  import org.apache.maven.scm.ScmTestCase;
  import org.apache.maven.scm.command.checkin.CheckInScmResult;
  import org.apache.maven.scm.command.update.UpdateScmResult;
  import org.apache.maven.scm.manager.ScmManager;
  import org.apache.maven.scm.repository.ScmRepository;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  /**
   * This test tests the update command.
   * <p>
   * It works like this:
   * <p>
   * <ol>
   * <li>Check out the files to directory getWorkingCopy().
   * <li>Check out the files to directory getUpdatingCopy().
   * <li>Change the files in getWorkingCopy().
   * <li>Commit the files in getWorkingCopy(). Note that the provider <b>must</b> not
   * use the check in command as it can be guaranteed to work as it's not yet tested.
   * <li>Use the update command in getUpdatingCopy() to assert that the files
   * that was supposed to be updated actually was updated.
   * </ol>
   *
   * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
   *
   */
  public abstract class UpdateCommandTckTest extends ScmTckTestCase {
  
      private void commit(File workingDirectory, ScmRepository repository) throws Exception {
          CheckInScmResult result = getScmManager().checkIn(repository, new ScmFileSet(workingDirectory), "No msg");
  
          assertTrue("Check result was successful, output: " + result.getCommandOutput(), result.isSuccess());
  
          List<ScmFile> committedFiles = result.getCheckedInFiles();
  
          assertEquals(
                  "Expected 3 files in the committed files list:\n  "
                          + StringUtils.join(committedFiles.iterator(), "\n  "),
                  3,
                  committedFiles.size());
      }
  
      @Test
      public void testUpdateCommand() throws Exception {
  
          deleteDirectory(getUpdatingCopy());
  
          assertFalse(getUpdatingCopy().exists());
  
          // deleteDirectory( getWorkingCopy() );
  
          // assertFalse( getUpdatingCopy().exists() );
  
          ScmRepository repository = makeScmRepository(getScmUrl());
  
          checkOut(getUpdatingCopy(), repository);
  
          // ----------------------------------------------------------------------
          // Change the files
          // ----------------------------------------------------------------------
  
          /*
           * readme.txt is changed (changed file in the root directory)
          * project.xml is added (added file in the root directory)
          * src/test/resources is untouched (a empty directory is left untouched)
          * src/test/java is untouched (a non empty directory is left untouched)
          * src/test/java/org (a empty directory is added)
          * src/main/java/org/Foo.java (a non empty directory is added)
          */
 
         // /readme.txt
         this.edit(getWorkingCopy(), "readme.txt", null, getScmRepository());
         ScmTestCase.makeFile(getWorkingCopy(), "/readme.txt", "changed readme.txt");
 
         // /project.xml
         ScmTestCase.makeFile(getWorkingCopy(), "/project.xml", "changed project.xml");
 
         addToWorkingTree(getWorkingCopy(), new File("project.xml"), getScmRepository());
 
         // /src/test/java/org
         ScmTestCase.makeDirectory(getWorkingCopy(), "/src/test/java/org");
 
         addToWorkingTree(getWorkingCopy(), new File("src/test/java/org"), getScmRepository());
 
         // /src/main/java/org/Foo.java
         ScmTestCase.makeFile(getWorkingCopy(), "/src/main/java/org/Foo.java");
 
         addToWorkingTree(getWorkingCopy(), new File("src/main/java/org"), getScmRepository());
 
         // src/main/java/org/Foo.java
         addToWorkingTree(getWorkingCopy(), new File("src/main/java/org/Foo.java"), getScmRepository());
 
         ScmManager scmManager = getScmManager();
 
         Date lastUpdate = new Date(System.currentTimeMillis() - 1000000);
 
         commit(getWorkingCopy(), getScmRepository());
 
         Thread.sleep(5000);
 
         // ----------------------------------------------------------------------
         // Update the project
         // ----------------------------------------------------------------------
 
         UpdateScmResult result = scmManager.update(repository, new ScmFileSet(getUpdatingCopy()), lastUpdate);
 
         assertNotNull("The command returned a null result.", result);
 
         assertResultIsSuccess(result);
 
         List<ScmFile> updatedFiles = result.getUpdatedFiles();
 
         List<ChangeSet> changedSets = result.getChanges();
 
         assertEquals("Expected 3 files in the updated files list " + updatedFiles, 3, updatedFiles.size());
 
         assertNotNull("The changed files list is null", changedSets);
 
         assertFalse("The changed files list is empty ", changedSets.isEmpty());
 
         for (ChangeSet changeSet : changedSets) {
             System.out.println(changeSet.toXML());
         }
 
         // ----------------------------------------------------------------------
         // Assert the files in the updated files list
         // ----------------------------------------------------------------------
 
         Iterator<ScmFile> files = new TreeSet<ScmFile>(updatedFiles).iterator();
 
         // Foo.java
         ScmFile file = files.next();
         assertPath("src/main/java/org/Foo.java", file.getPath());
         // TODO : Consolidate file status so that we can remove "|| ADDED" term
         assertTrue(file.getStatus().isUpdate() || file.getStatus() == ScmFileStatus.ADDED);
 
         // readme.txt
         file = files.next();
         assertPath("readme.txt", file.getPath());
         assertTrue(file.getStatus().isUpdate());
 
         // project.xml
         file = files.next();
         assertPath("project.xml", file.getPath());
         // TODO : Consolidate file status so that we can remove "|| ADDED" term
         assertTrue(file.getStatus().isUpdate() || file.getStatus() == ScmFileStatus.ADDED);
     }
 }