/*
 * 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.test.extension;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.neo4j.configuration.GraphDatabaseSettings.initial_default_database;
import static org.neo4j.configuration.GraphDatabaseSettings.neo4j_home;

import java.nio.file.Files;
import org.junit.jupiter.api.Test;
import org.neo4j.configuration.Config;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.layout.DatabaseLayout;
import org.neo4j.io.layout.Neo4jLayout;
import org.neo4j.test.utils.TestDirectory;

@Neo4jLayoutExtension
class Neo4jLayoutSupportExtensionTest {
    @Inject
    private Neo4jLayout neo4jLayout;

    @Inject
    private DatabaseLayout databaseLayout;

    @Inject
    private FileSystemAbstraction fs;

    @Inject
    private TestDirectory testDirectory;

    @Test
    void shouldInjectLayouts() {
        assertNotNull(neo4jLayout);
        assertNotNull(databaseLayout);
        assertNotNull(fs);
        assertNotNull(databaseLayout);
    }

    @Test
    void shouldCreateDirectories() {
        assertTrue(Files.exists(neo4jLayout.homeDirectory()));
        assertTrue(Files.exists(neo4jLayout.databasesDirectory()));
        assertTrue(Files.exists(neo4jLayout.transactionLogsRootDirectory()));

        assertTrue(fs.fileExists(databaseLayout.databaseDirectory()));
        assertTrue(fs.fileExists(databaseLayout.getTransactionLogsDirectory()));
    }

    @Test
    void shouldUseDefaultConfig() {
        Config defaultConfig = Config.defaults(neo4j_home, testDirectory.homePath());
        Neo4jLayout defaultNeo4jLayout = Neo4jLayout.of(defaultConfig);
        DatabaseLayout defaultDatabaseLayout =
                defaultNeo4jLayout.databaseLayout(defaultConfig.get(initial_default_database));

        assertEquals(defaultNeo4jLayout.homeDirectory(), neo4jLayout.homeDirectory());
        assertEquals(defaultNeo4jLayout.databasesDirectory(), neo4jLayout.databasesDirectory());
        assertEquals(defaultNeo4jLayout.transactionLogsRootDirectory(), neo4jLayout.transactionLogsRootDirectory());

        assertEquals(defaultDatabaseLayout.databaseDirectory(), databaseLayout.databaseDirectory());
        assertEquals(defaultDatabaseLayout.getTransactionLogsDirectory(), databaseLayout.getTransactionLogsDirectory());
    }
}
