/*
 * 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;

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

import java.io.File;
import java.util.HashMap;
import java.util.Map;

public class OperationContext {

  protected final MercurialVcsSupport myVcs;
  protected final RepoFactory myRepoFactory;
  protected final MercurialProgress myProgress;
  private final Map<String, HgVersion> myHgVersions = new HashMap<String, HgVersion>();

  public OperationContext(@NotNull MercurialVcsSupport vcs,
                          @NotNull RepoFactory repoFactory,
                          @NotNull MercurialProgress progress) {
    myVcs = vcs;
    myRepoFactory = repoFactory;
    myProgress = progress;
  }


  @NotNull
  public HgVersion getHgVersion(@NotNull ServerHgRepo repo) throws VcsException {
    String hgPath = repo.getHgPath();
    HgVersion cachedVersion = myHgVersions.get(hgPath);
    if (cachedVersion != null)
      return cachedVersion;
    HgVersion version = repo.version().call();
    myHgVersions.put(hgPath, version);
    return version;
  }


  @NotNull
  public ServerHgRepo createRepo(@NotNull HgVcsRoot root, @NotNull File workingDir) throws VcsException {
    return myRepoFactory.createRepo(root, workingDir, myProgress);
  }


  public void syncRepository(@NotNull HgVcsRoot root) throws VcsException {
    syncRepository(root, VcsCallable.NO_OP);
  }

  public <T> T syncRepository(@NotNull HgVcsRoot root, @NotNull VcsCallable<T> cmd) throws VcsException {
    SyncSettings<T> settings = new SyncSettings<T>(cmd);
    return myVcs.syncRepository(root, settings, this);
  }


  @NotNull
  public ServerHgRepo createRepo(@NotNull HgVcsRoot root) throws VcsException {
    return myRepoFactory.createRepo(root, myVcs.getWorkingDir(root), myProgress);
  }
}