package com.genersoft.iot.vmp.gb28181.task.impl;

import com.genersoft.iot.vmp.conf.DynamicTask;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.task.ISubscribeTask;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommander;
import gov.nist.javax.sip.message.SIPRequest;
import gov.nist.javax.sip.message.SIPResponse;
import org.dom4j.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Async;

import javax.sip.*;
import javax.sip.header.ToHeader;
import java.text.ParseException;
import java.util.Timer;
import java.util.TimerTask;

/**
 * 移动位置订阅的定时更新
 * @author lin
 */
public class MobilePositionSubscribeTask implements ISubscribeTask {
    private final Logger logger = LoggerFactory.getLogger(MobilePositionSubscribeTask.class);
    private Device device;
    private ISIPCommander sipCommander;

    private SIPRequest request;
    private DynamicTask dynamicTask;
    private String taskKey = "mobile-position-subscribe-timeout";

    public MobilePositionSubscribeTask(Device device, ISIPCommander sipCommander, DynamicTask dynamicTask) {
        this.device = device;
        this.sipCommander = sipCommander;
        this.dynamicTask = dynamicTask;
    }

    @Override
    public void run() {
        if (dynamicTask.get(taskKey) != null) {
            dynamicTask.stop(taskKey);
        }
        SIPRequest sipRequest = null;
        try {
            sipRequest = sipCommander.mobilePositionSubscribe(device, request, eventResult -> {
                // 成功
                logger.info("[移动位置订阅]成功： {}", device.getDeviceId());
                ResponseEvent event = (ResponseEvent) eventResult.event;
                ToHeader toHeader = (ToHeader)event.getResponse().getHeader(ToHeader.NAME);
                try {
                    this.request.getToHeader().setTag(toHeader.getTag());
                } catch (ParseException e) {
                    logger.info("[移动位置订阅]成功： 为request设置ToTag失败");
                    this.request = null;
                }
            },eventResult -> {
                this.request = null;
                // 失败
                logger.warn("[移动位置订阅]失败，信令发送失败： {}-{} ", device.getDeviceId(), eventResult.msg);
                dynamicTask.startDelay(taskKey, MobilePositionSubscribeTask.this, 2000);
            });
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 移动位置订阅: {}", e.getMessage());
        }
        if (sipRequest != null) {
            this.request = sipRequest;
        }

    }

    @Override
    public void stop() {
        /**
         * dialog 的各个状态
         * EARLY-> Early state状态-初始请求发送以后，收到了一个临时响应消息
         * CONFIRMED-> Confirmed Dialog状态-已确认
         * COMPLETED-> Completed Dialog状态-已完成
         * TERMINATED-> Terminated Dialog状态-终止
         */
        if (dynamicTask.get(taskKey) != null) {
            dynamicTask.stop(taskKey);
        }
        device.setSubscribeCycleForMobilePosition(0);
        try {
            sipCommander.mobilePositionSubscribe(device, request, eventResult -> {
                ResponseEvent event = (ResponseEvent) eventResult.event;
                if (event.getResponse().getRawContent() != null) {
                    // 成功
                    logger.info("[取消移动位置订阅]成功： {}", device.getDeviceId());
                }else {
                    // 成功
                    logger.info("[取消移动位置订阅]成功： {}", device.getDeviceId());
                }
            },eventResult -> {
                // 失败
                logger.warn("[取消移动位置订阅]失败，信令发送失败： {}-{} ", device.getDeviceId(), eventResult.msg);
            });
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 取消移动位置订阅: {}", e.getMessage());
        }
    }
}