package xyz.wbsite.itchat4j;

import cn.hutool.core.io.FileUtil;
import cn.zhouyafeng.itchat4j.Wechat;
import xyz.wbsite.itchat4j.util.Logger;

import java.io.File;

/**
 * 服务线程
 *
 * @author wangbing
 * @version 0.0.1
 * @since 1.8
 */
public class JMainService {

    /**
     * 单例对象
     */
    private static JMainService instance;

    private static Wechat wechat;

    public static synchronized JMainService getInstance() {
        if (instance == null) {
            JMainService.instance = new JMainService();
        }
        return instance;
    }

    /**
     * 服务运行状态
     */
    public boolean run;

    /**
     * 守护线程
     */
    public LoginThread loginThread;

    /**
     * 服务内部构造器
     */
    private JMainService() {
        Logger.info("初始化服务");
    }

    public static void init() {

    }

    public void createDaemon() {
        Logger.info("初始化线程");
        this.loginThread = new LoginThread();
        this.loginThread.setDaemon(true);
        Logger.info("启动线程");
        this.run = true;
        this.loginThread.start();
    }

    public static boolean start() {
        if (JMainService.getInstance().run) {
            Logger.info("服务已启动");
            return false;
        }

        // 创建线程
        JMainService.getInstance().createDaemon();
        return true;
    }

    public static boolean stop() {
        if (!JMainService.getInstance().run) {
            Logger.info("服务未启动");
            return false;
        }
        // 停止服务
        JMainService.getInstance().run = false;
        // 关闭守护线程
        JMainService.getInstance().loginThread.interrupt();
        Logger.info("正在停止脚本");
        return true;
    }

    /**
     * 登录线程
     */
    public class LoginThread extends Thread {

        @Override
        public void run() {
            // 保存登陆二维码图片的路径，这里需要在本地新建目录
            File qrPath = FileUtil.mkdir(new File(FileUtil.getTmpDir(), "itchat4j"));
            wechat = new Wechat(new JMsgHandler(), qrPath.getAbsolutePath());
            // 启动服务，会在qrPath下生成一张二维码图片，扫描即可登陆，注意，二维码图片如果超过一定时间未扫描会过期，过期时会自动更新，所以你可能需要重新打开图片
            wechat.start();
        }
    }
}