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/*
 * 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.
 *
 * Copyright 2012-2018 the original author or authors.
 */
package org.assertj.swing.junit.runner;

import static org.assertj.swing.core.Settings.shouldPreserveScreenshots;

import java.io.File;
import java.io.IOException;
import java.io.UncheckedIOException;

/**
 * Understands creation of the folder where screenshots of failed GUI tests will be saved to.
 *
 * @author Alex Ruiz
 */
public class ImageFolderCreator {

  private static final String FAILED_GUI_TESTS_FOLDER = "failed-gui-tests";

  private final FolderCreator folderCreator;

  public ImageFolderCreator() {
    this(new FolderCreator());
  }

  ImageFolderCreator(FolderCreator folderCreator) {
    this.folderCreator = folderCreator;
  }

  /**
   * Creates the folder where to save screenshots of failing GUI tests. The name of the folder to create is
   * 'failed-gui-tests'. If {@link org.assertj.swing.core.Settings#shouldPreserveScreenshots()} is false
   * and the folder already exists, it is deleted and recreated again. If it is true the folder is created
   * if it not yet exists.
   *
   * @return the created folder.
   * @throws RuntimeException if any error occurs when creating the folder.
   */
  public File createImageFolder() {
    try {
      return folderCreator.createFolder((new File(".")).getCanonicalFile(), FAILED_GUI_TESTS_FOLDER,
                                        !shouldPreserveScreenshots());
    } catch (IOException e) {
      throw new UncheckedIOException("Unable to get current directory", e);
    }
  }
}