/**
 * Copyright © 2016-2017 The Thingsboard Authors
 *
 * 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.
 */

package org.thingsboard.server.service.install;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Service;
import org.thingsboard.server.dao.util.SqlDao;

import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.sql.Connection;
import java.sql.DriverManager;

@Service
@Profile("install")
@Slf4j
@SqlDao
public class SqlDatabaseUpgradeService implements DatabaseUpgradeService {

    private static final String SCHEMA_UPDATE_SQL = "schema_update.sql";

    @Value("${install.data_dir}")
    private String dataDir;

    @Value("${spring.datasource.url}")
    private String dbUrl;

    @Value("${spring.datasource.username}")
    private String dbUserName;

    @Value("${spring.datasource.password}")
    private String dbPassword;

    @Override
    public void upgradeDatabase(String fromVersion) throws Exception {
        switch (fromVersion) {
            case "1.3.0":
                log.info("Updating schema ...");
                Path schemaUpdateFile = Paths.get(this.dataDir, "upgrade", "1.3.1", SCHEMA_UPDATE_SQL);
                try (Connection conn = DriverManager.getConnection(dbUrl, dbUserName, dbPassword)) {
                    String sql = new String(Files.readAllBytes(schemaUpdateFile), Charset.forName("UTF-8"));
                    conn.createStatement().execute(sql); //NOSONAR, ignoring because method used to execute thingsboard database upgrade script
                }
                log.info("Schema updated.");
                break;
            default:
                throw new RuntimeException("Unable to upgrade SQL database, unsupported fromVersion: " + fromVersion);
        }
    }
}
