package org.jeecg.config.sap;

import com.sap.conn.jco.*;
import com.sap.conn.jco.ext.DestinationDataProvider;
import com.sap.conn.jco.ext.Environment;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Properties;

@Component
@Slf4j
public class SapRfcConnectionManager {

    @Value("${sap.rfc.destination}")
    private String destinationName;

    @Value("${sap.rfc.ashost}")
    private String ashost;

    @Value("${sap.rfc.sysnr}")
    private String sysnr;

    @Value("${sap.rfc.client}")
    private String client;

    @Value("${sap.rfc.user}")
    private String user;

    @Value("${sap.rfc.passwd}")
    private String passwd;

    @Value("${sap.rfc.lang}")
    private String lang;

    private String poolSize = "5";

    private String idleTimeout = "10000";

    private String peekLimit = "10";

    private JCoDestination destination;

    /**
     *
     * @throws JCoException
     */
    @PostConstruct
    public void init() throws Exception {
        Properties connectProperties = new Properties();
        connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, ashost);
        connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR, sysnr);
        connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, client);
        connectProperties.setProperty(DestinationDataProvider.JCO_USER, user);
        connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, passwd);
        connectProperties.setProperty(DestinationDataProvider.JCO_LANG, lang);
        connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, peekLimit);
        connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, poolSize);
        connectProperties.setProperty(DestinationDataProvider.JCO_EXPIRATION_TIME, idleTimeout);

        // 创建动态目的地（避免依赖 SM59 配置）
        CustomDestinationDataProvider provider = new CustomDestinationDataProvider();
        provider.addDestination(destinationName, connectProperties);

        // 设置全局目的地提供者
//        Environment.registerDestinationDataProvider(provider);

        log.info("properties = " + connectProperties);

        //生成配置文件，JCoDestinationManager.getDestination()调用时会需要该连接配置文件，后缀名需要为jcoDestination
        FileOutputStream fos = null;
        String suffix = "jcoDestination";
        File cfg = new File(destinationName + "." + suffix);
        if (!cfg.exists()) {
            try {
                fos = new FileOutputStream(cfg, false);
                connectProperties.store(fos, "for tests only !");
                fos.close();
            } catch (Exception var9) {
                throw new Exception("Unable to create the destination file " + cfg.getName(), var9);
            } finally {
                if (null != fos) {
                    fos.close();
                }
            }
        }

        // 获取目的地
        this.destination = JCoDestinationManager.getDestination(destinationName);
    }

    /**
     *
     * @return
     */
    public JCoDestination getDestination() {
        return destination;
    }

    /**
     *
     */
    public void destroy() {
        if (destination != null) {
//            destination;
        }
    }
}