/*
    * Copyright 2014 The Kuali Foundation
    * 
    * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php
    * 
   * 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.kuali.student.git.model;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.List;
  
  import org.apache.commons.io.FileUtils;
  import org.apache.commons.io.IOUtils;
  import org.eclipse.jgit.lib.Constants;
  import org.eclipse.jgit.lib.FileMode;
  import org.eclipse.jgit.lib.ObjectId;
  import org.eclipse.jgit.lib.ObjectLoader;
  import org.eclipse.jgit.lib.Ref;
  import org.eclipse.jgit.lib.Repository;
  import org.eclipse.jgit.revwalk.RevCommit;
  import org.eclipse.jgit.revwalk.RevWalk;
  import org.eclipse.jgit.treewalk.TreeWalk;
  import org.junit.Assert;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.BlockJUnit4ClassRunner;
  import org.kuali.student.git.importer.GitImporterMain;
  
  /**
   * 
   * Test the importer on KS Revision 27975 to make sure the blob add is working properly
   * 
   * @author Kuali Student Team
   *
   */
  @RunWith(BlockJUnit4ClassRunner.class)
  public class TestKSRevision27975 {
  
  	/**
  	 * @param name
  	 */
  	public TestKSRevision27975() {
  	}
  
  	@Test
  	public void testRevision27975 () throws IOException {
  		File gitRepository = new File ("target/ks-r27975");
  		
  		FileUtils.deleteDirectory(gitRepository);
  		
  		Repository repository = GitRepositoryUtils
  				.buildFileRepository(gitRepository, true);
  		
  		GitImporterMain.main(new String [] {"src/test/resources/ks-r27975.dump.bz2", gitRepository.getAbsolutePath(), "target/ks-r27975-ks-veto.log", "target/ks-r27975-ks-copyFrom-skipped.log", "target/ks-r27975-blob.log", "0", "https://svn.kuali.org/repos/student", "uuid"});
  		
  		RevWalk rw = new RevWalk(repository);
  		
  		Ref branch = repository.getRef("sandbox_ks-1.3-core-slice-demo_modules_ks-pom_trunk");
  		
  		Assert.assertNotNull(branch);
  
  		RevCommit headCommit = rw.parseCommit(branch.getObjectId());
  		
  		TreeWalk tw = new TreeWalk(repository);
  		
  		tw.addTree(headCommit.getTree().getId());
  		
  		tw.setRecursive(true);
  		
  		int blobCount = 0;
  		
  		ObjectId blobId = null;
  		
  		while (tw.next()) {
  			
  			if (tw.getFileMode(0) == FileMode.REGULAR_FILE) {
  				blobCount++;
  				
  				blobId = tw.getObjectId(0);
  			}
  		}
  		
  		Assert.assertEquals(1, blobCount);
  		
  		ObjectLoader blobLoader = repository.getObjectDatabase().newReader().open(blobId);
  		
  		List<String> lines = IOUtils.readLines(blobLoader.openStream());
  		
  		Assert.assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>", lines.get(0));
 		
 		tw.release();
 		
 		rw.release();
 		repository.close();
 		
 		
 	}
 	
 	
 	
 }