// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package syncer.common.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.web.context.WebServerInitializedEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Objects;

/**
 * @author zhanenqiang
 * @Description 描述
 * @Date 2020/12/15
 */
@Component
@Slf4j
public class ServerConfig  implements ApplicationListener<WebServerInitializedEvent> {
    private int serverPort;

    public String getUrl() {
        InetAddress address = null;
        try {
            address = InetAddress.getLocalHost();
        } catch (UnknownHostException e) {
            log.error("get InetAddress  fail. {}",e.getMessage());
        }
        String hostAddress=null;
        if(Objects.isNull(address)){
            hostAddress="unknown";
        }else {
            hostAddress=address.getHostAddress();
        }

        return "http://"+hostAddress +":"+this.serverPort;
    }

    @Override
    public void onApplicationEvent(WebServerInitializedEvent event) {
        this.serverPort = event.getWebServer().getPort();
    }

}