/*
    * Copyright (C) 2012, Tomasz Zarna <tomasz.zarna@tasktop.com> and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  package org.eclipse.jgit.pgm;
  
  import java.io.IOException;
  import java.util.Collection;
  
  import org.eclipse.jgit.api.Git;
  import org.eclipse.jgit.api.ReflogCommand;
  import org.eclipse.jgit.api.errors.GitAPIException;
  import org.eclipse.jgit.lib.Constants;
  import org.eclipse.jgit.lib.ReflogEntry;
  import org.eclipse.jgit.lib.Repository;
  import org.kohsuke.args4j.Argument;
  
  @Command(common = true, usage = "usage_manageReflogInformation")
  class Reflog extends TextBuiltin {
  
  	@Argument(metaVar = "metaVar_ref")
  	private String ref;
  
  	/** {@inheritDoc} */
  	@Override
  	protected void run() {
  		try (Gitit.html#Git">Git git = new Git(db)) {
  			ReflogCommand cmd = git.reflog();
  			if (ref != null)
  				cmd.setRef(ref);
  			Collection<ReflogEntry> entries = cmd.call();
  			int i = 0;
  			for (ReflogEntry entry : entries) {
  				outw.println(toString(entry, i++));
  			}
  		} catch (GitAPIException | IOException e) {
  			throw die(e.getMessage(), e);
  		}
  	}
  
  	private String toString(ReflogEntry entry, int i) {
  		final StringBuilder s = new StringBuilder();
  		s.append(entry.getNewId().abbreviate(7).name());
  		s.append(" "); //$NON-NLS-1$
  		s.append(ref == null ? Constants.HEAD : Repository.shortenRefName(ref));
  		s.append("@{" + i + "}:"); //$NON-NLS-1$ //$NON-NLS-2$
  		s.append(" "); //$NON-NLS-1$
  		s.append(entry.getComment());
  		return s.toString();
  	}
  }