/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package sonia.scm.repository.work;

import sonia.scm.util.IOUtil;

import javax.inject.Inject;
import java.io.File;

/**
 * This is the default implementation for the {@link WorkingCopyPool}. For each requested {@link WorkingCopy} with
 * {@link #getWorkingCopy(SimpleWorkingCopyFactory.WorkingCopyContext)}, a new directory is requested from the
 * {@link WorkdirProvider}. This directory is deleted immediately when the context is closed with
 * {@link #contextClosed(SimpleWorkingCopyFactory.WorkingCopyContext, File)}.
 */
public class NoneCachingWorkingCopyPool implements WorkingCopyPool {

  private final WorkdirProvider workdirProvider;

  @Inject
  public NoneCachingWorkingCopyPool(WorkdirProvider workdirProvider) {
    this.workdirProvider = workdirProvider;
  }

  @Override
  public <R, W> WorkingCopy<R, W> getWorkingCopy(SimpleWorkingCopyFactory<R, W, ?>.WorkingCopyContext context) {
    return context.initialize(workdirProvider.createNewWorkdir(context.getScmRepository().getId()));
  }

  @Override
  public void contextClosed(SimpleWorkingCopyFactory<?, ?, ?>.WorkingCopyContext workingCopyContext, File workdir) {
    IOUtil.deleteSilently(workdir);
  }

  @Override
  public void shutdown() {
    // no caches, nothing to clean up :-)
  }
}
