/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
 * Software engineering by
 *  Björnsen Beratende Ingenieure GmbH
 *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */
package test;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;

import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;

/**
 * @author Domenico Nardi Tironi
 *
 */
public abstract class AbstractBerechnungsartenTester {

    // for common Settings
    //
    protected static File testFolder;

    protected enum FileExportBehaviour {
        do_not_override, export_all, export_none;
        // do_not_override: file export is set individually (not overridden)
        // true: all test files created by running jUnit-Tests will be written to disk
        // false: no file will be exported
    };

    public static enum River {
        Beispielfluss, Rhein, Elbe
    };

    @BeforeClass
    public static final void createTempFolder() {
        // windows: C:\Users\USER_NAME\AppData\Local\Temp
        if (testFolder == null) {
            testFolder = new File(FileUtils.getTempDirectory(), "FlysTestFolder");
            if (!testFolder.isDirectory())
                testFolder.mkdir();
        }
    }

    @AfterClass
    public static void deleteTempFolder() {

        testFolder = new File(FileUtils.getTempDirectory(), "FlysTestFolder");
        if (testFolder.isDirectory() && testFolder.exists()) {

            try {
                final Iterator<File> test = FileUtils.iterateFiles(testFolder, null, true);
                if (!test.hasNext()) {
                    FileUtils.deleteDirectory(testFolder);

                    testFolder = null;
                }
            }
            catch (final IOException e) {
                e.printStackTrace();
            }
        }
    }
}