/**

 * copy-image-resizer

 * Copyright © 2014 František Kučera (frantovo.cz)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

package cz.frantovo.copyImageResizer;

import java.io.File;

import java.util.ArrayList;

import java.util.Collection;

/**

 *

 * @author Ing. František Kučera (frantovo.cz)

 */

public class RecursiveOptions {

	/**

	 * Source directory

	 */

	private File input;

	/**

	 * Output directory

	 */

	private File output;

	/**

	 * Image resolutions to create

	 */

	private final Collection<SizeSpecification> sizes = new ArrayList<>();

	public File getInput() {

		return input;

	}

	public void setInput(File input) {

		this.input = input;

	}

	public File getOutput() {

		return output;

	}

	public void setOutput(File output) {

		this.output = output;

	}

	public Collection<SizeSpecification> getSizes() {

		return sizes;

	}

	public void addSize(SizeSpecification size) {

		sizes.add(size);

	}

	public void validate() throws InvalidOptionsException {

		InvalidOptionsException e = new InvalidOptionsException();

		if (input == null) {

			e.addProblem(new InvalidOptionsException.OptionProblem("input directory must be specified"));

		} else if (!input.isDirectory()) {

			e.addProblem(new InvalidOptionsException.OptionProblem("input directory must exist and be a directory: " + input));

		}

		if (output == null) {

			e.addProblem(new InvalidOptionsException.OptionProblem("output directory must be specified"));

		}

		if (sizes.isEmpty()) {

			e.addProblem(new InvalidOptionsException.OptionProblem("at least one size (output resolution) must be specified"));

		}

		if (e.hasProblems()) {

			throw e;

		}

	}

}