package com.zy.system.entity.license;

import com.core.common.Cools;
import com.zy.system.timer.LicenseTimer;
import de.schlichtherle.license.LicenseContent;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

import java.io.File;
import java.util.Date;

/**
 * 在项目启动时安装证书
 */
@Component
public class LicenseCheckListener implements ApplicationListener<ContextRefreshedEvent> {
    private static Logger logger = LogManager.getLogger(LicenseCheckListener.class);

    /**
     * 证书subject
     */
    @Value("${license.subject}")
    private String subject;

    /**
     * 公钥别称
     */
    @Value("${license.publicAlias}")
    private String publicAlias;

    /**
     * 访问公钥库的密码
     */
    @Value("${license.storePass}")
    private String storePass;

    /**
     * 证书生成路径
     */
    @Value("${license.licensePath}")
    private String licensePath;

    /**
     * 密钥库存储路径
     */
    @Value("${license.publicKeysStorePath}")
    private String publicKeysStorePath;

    @Autowired
    private LicenseTimer licenseTimer;

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        //root application context 没有parent
        ApplicationContext context = event.getApplicationContext().getParent();
        if(context == null){
            loadLicense();
        }
    }

    //加载证书
    public boolean loadLicense() {
        if(!Cools.isEmpty(licensePath)){
            logger.info("++++++++ 开始加载许可证 ++++++++");

            try {
//                String publicKeysStoreFileName = this.getClass().getClassLoader().getResource(publicKeysStorePath).getPath();
//                File publicKeysStoreFile = new File(publicKeysStoreFileName);
//
//                String licensePathFileName = this.getClass().getClassLoader().getResource(licensePath).getPath();
//                File licensePathFile = new File(licensePathFileName);

                LicenseVerifyParam param = new LicenseVerifyParam();
                param.setSubject(subject);
                param.setPublicAlias(publicAlias);
                param.setStorePass(storePass);
                param.setLicensePath(licensePath);
                param.setPublicKeysStorePath(publicKeysStorePath);

                LicenseVerify licenseVerify = new LicenseVerify();
                //安装证书
                LicenseContent install = licenseVerify.install(param);

                logger.info("++++++++ 许可证加载结束 ++++++++");

                licenseTimer.setSystemSupport(install!=null);

                if (install != null) {
                    Date start = new Date();
                    Date end = install.getNotAfter();
                    Long starTime = start.getTime();
                    Long endTime = end.getTime();
                    Long num = endTime - starTime;//时间戳相差的毫秒数
                    int day = (int) (num / 24 / 60 / 60 / 1000);
                    licenseTimer.setLicenseDays(day);
                }


                return install != null;
            } catch (Exception e) {
                return false;
            }
        }
        licenseTimer.setSystemSupport(false);
        return false;
    }
}