/*
 * Copyright 2000-2018 JetBrains s.r.o.
 *
 * 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 jetbrains.buildServer.buildTriggers.vcs.mercurial.command;

import jetbrains.buildServer.buildTriggers.vcs.mercurial.command.exception.MergeConflictException;
import jetbrains.buildServer.vcs.VcsException;
import org.jetbrains.annotations.NotNull;

import java.io.File;

public class MergeCommand extends BaseCommand {

  private String myMergeTool;
  private String myRevision;

  public MergeCommand(@NotNull CommandSettings commandSettings,
                      @NotNull String hgPath,
                      @NotNull File workingDir) {
    super(commandSettings, hgPath, workingDir);
  }

  public MergeCommand revision(@NotNull String revision) {
    myRevision = revision;
    return this;
  }

  public MergeCommand withMergeTool(@NotNull String mergeTool) {
    myMergeTool = mergeTool;
    return this;
  }

  public void call() throws VcsException {
    MercurialCommandLine cmd = createCommandLine();
    cmd.addParameter("merge");
    if (myRevision != null)
      cmd.addParameters("-r", myRevision);
    if (myMergeTool != null)
      cmd.addParameters("--tool", myMergeTool);
    CommandResult result = runCommand(cmd);
    if (result.getExitCode() == 1)
      throw new MergeConflictException();
  }

  @NotNull
  @Override
  protected String getDescription() {
    return "hg merge";
  }
}