/*
 * Copyright 2017-2021 EPAM Systems, Inc. (https://www.epam.com/)
 *
 * 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 com.epam.pipeline.dts.sync.service.impl;

import com.epam.pipeline.dts.sync.service.PreferenceService;
import com.epam.pipeline.dts.sync.service.ShutdownService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.stereotype.Service;

import java.util.Optional;

@Service
@RequiredArgsConstructor
@Slf4j
public class ShutdownServiceImpl implements ShutdownService {

    private final ConfigurableApplicationContext context;
    private final PreferenceService preferenceService;

    @Override
    public void shutdown() {
        log.info("Shutdown will be preformed.");
        preferenceService.clearShutdownFlag();
        log.info("Closing context...");
        Integer exitCode = null;
        try {
            exitCode = SpringApplication.exit(context);
        } finally {
            Runtime.getRuntime().halt(Optional.ofNullable(exitCode).orElse(1));
        }
    }
}
