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();
  }
}