/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j 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 org.neo4j.server.security.auth;

import java.nio.file.Path;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.logging.InternalLog;

public interface FileRepository {
    /**
     * This is used by different flavors of file repositories to agree on a naming convention
     * for repository files that are renamed after migration to prevent accidental reuse.
     */
    static Path getMigratedFile(Path path) {
        return path.resolveSibling(path.getFileName() + ".migrated");
    }

    static void assertNotMigrated(Path path, FileSystemAbstraction fileSystem, InternalLog log) {
        Path migratedFile = getMigratedFile(path);
        if (fileSystem.fileExists(migratedFile)) {
            String message = "The repository file '" + path.toAbsolutePath() + "' has been marked as migrated. "
                    + "If you are sure that you want use this repository you need to manually rename the file '"
                    + migratedFile.toAbsolutePath()
                    + "' to '" + path.getFileName() + "'";
            log.error(message);
            throw new IllegalStateException(message);
        }
    }
}
