package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.control.cmd;

import com.genersoft.iot.vmp.common.enums.DeviceControlType;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.bean.ParentPlatform;
import com.genersoft.iot.vmp.gb28181.event.SipSubscribe;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommanderFroPlatform;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.IMessageHandler;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.control.ControlMessageHandler;
import com.genersoft.iot.vmp.storager.IVideoManagerStorage;
import gov.nist.javax.sip.message.SIPRequest;
import org.dom4j.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;

import javax.sip.*;
import javax.sip.address.SipURI;
import javax.sip.header.HeaderAddress;
import javax.sip.header.ToHeader;
import javax.sip.message.Response;
import java.text.ParseException;
import java.util.Iterator;
import java.util.Objects;

import static com.genersoft.iot.vmp.gb28181.utils.XmlUtil.getText;

@Component
public class DeviceControlQueryMessageHandler extends SIPRequestProcessorParent implements InitializingBean, IMessageHandler {

    private Logger logger = LoggerFactory.getLogger(DeviceControlQueryMessageHandler.class);
    private final String cmdType = "DeviceControl";

    @Autowired
    private ControlMessageHandler controlMessageHandler;

    @Autowired
    private IVideoManagerStorage storager;

    @Autowired
    private SIPCommander cmder;

    @Autowired
    private SIPCommanderFroPlatform cmderFroPlatform;

    @Qualifier("taskExecutor")
    @Autowired
    private ThreadPoolTaskExecutor taskExecutor;

    @Override
    public void afterPropertiesSet() throws Exception {
        controlMessageHandler.addHandler(cmdType, this);
    }

    @Override
    public void handForDevice(RequestEvent evt, Device device, Element element) {

    }

    @Override
    public void handForPlatform(RequestEvent evt, ParentPlatform parentPlatform, Element rootElement) {

        SIPRequest request = (SIPRequest) evt.getRequest();

        // 此处是上级发出的DeviceControl指令
        String targetGBId = ((SipURI) request.getToHeader().getAddress().getURI()).getUser();
        String channelId = getText(rootElement, "DeviceID");
        // 远程启动功能
        if (!ObjectUtils.isEmpty(getText(rootElement, "TeleBoot"))) {
            if (parentPlatform.getServerGBId().equals(targetGBId)) {
                // 远程启动本平台：需要在重新启动程序后先对SipStack解绑
                logger.info("执行远程启动本平台命令");
                try {
                    cmderFroPlatform.unregister(parentPlatform, null, null);
                } catch (InvalidArgumentException | ParseException | SipException e) {
                    logger.error("[命令发送失败] 国标级联 注销: {}", e.getMessage());
                }
                taskExecutor.execute(()->{
                    // 远程启动
//                    try {
//                        Thread.sleep(3000);
//                        SipProvider up = (SipProvider) SpringBeanFactory.getBean("udpSipProvider");
//                        SipStackImpl stack = (SipStackImpl)up.getSipStack();
//                        stack.stop();
//                        Iterator listener = stack.getListeningPoints();
//                        while (listener.hasNext()) {
//                            stack.deleteListeningPoint((ListeningPoint) listener.next());
//                        }
//                        Iterator providers = stack.getSipProviders();
//                        while (providers.hasNext()) {
//                            stack.deleteSipProvider((SipProvider) providers.next());
//                        }
//                        VManageBootstrap.restart();
//                    } catch (InterruptedException | ObjectInUseException e) {
//                        logger.error("[任务执行失败] 服务重启: {}", e.getMessage());
//                    }
                });
            }
        }
        DeviceControlType deviceControlType = DeviceControlType.typeOf(rootElement);
        if (!ObjectUtils.isEmpty(deviceControlType) && !parentPlatform.getServerGBId().equals(targetGBId)){
            //判断是否存在该通道
            Device deviceForPlatform = storager.queryVideoDeviceByPlatformIdAndChannelId(parentPlatform.getServerGBId(), channelId);
            if (deviceForPlatform == null) {
                try {
                    responseAck(request, Response.NOT_FOUND);
                } catch (SipException | InvalidArgumentException | ParseException e) {
                    logger.error("[命令发送失败] 错误信息: {}", e.getMessage());
                }
                return;
            }
            switch (deviceControlType){
                case PTZ:
                    handlePtzCmd(deviceForPlatform,channelId,rootElement,request,DeviceControlType.PTZ);
                    break;
                case ALARM:
                    handleAlarmCmd(deviceForPlatform,rootElement,request);
                    break;
                case GUARD:
                    handleGuardCmd(deviceForPlatform,rootElement,request,DeviceControlType.GUARD);
                    break;
                case RECORD:
                    handleRecordCmd(deviceForPlatform,channelId,rootElement,request,DeviceControlType.RECORD);
                    break;
                case I_FRAME:
                    handleIFameCmd(deviceForPlatform,request,channelId);
                    break;
                case TELE_BOOT:
                    handleTeleBootCmd(deviceForPlatform,request);
                    break;
                case DRAG_ZOOM_IN:
                    handleDragZoom(deviceForPlatform,channelId,rootElement,request,DeviceControlType.DRAG_ZOOM_IN);
                    break;
                case DRAG_ZOOM_OUT:
                    handleDragZoom(deviceForPlatform,channelId,rootElement,request,DeviceControlType.DRAG_ZOOM_OUT);
                    break;
                case HOME_POSITION:
                    handleHomePositionCmd(deviceForPlatform,channelId,rootElement,request,DeviceControlType.HOME_POSITION);
                    break;
                default:
                    break;
            }
        }
    }

    /**
     * 处理云台指令
     * @param device 设备
     * @param channelId 通道id
     * @param rootElement
     * @param request
     */
    private void handlePtzCmd(Device device,String channelId,Element rootElement,SIPRequest request,DeviceControlType type){
        String cmdString = getText(rootElement,type.getVal());
        try {
            cmder.fronEndCmd(device, channelId, cmdString,
                    errorResult -> onError(request,errorResult),
                    okResult -> onOk(request,okResult));
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 云台/前端: {}", e.getMessage());
        }
    }

    /**
     * 处理强制关键帧
     * @param device 设备
     * @param channelId 通道id
     */
    private void handleIFameCmd(Device device,SIPRequest request,String channelId){
        try {
            cmder.iFrameCmd(device,channelId);
            responseAck(request, Response.OK);
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 强制关键帧: {}", e.getMessage());
        }
    }

    /**
     * 处理重启命令
     * @param device 设备信息
     */
    private void handleTeleBootCmd(Device device,SIPRequest request){
        try {
            cmder.teleBootCmd(device);
            responseAck(request, Response.OK);
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 重启: {}", e.getMessage());
        }

    }

    /**
     * 处理拉框控制
     * @param device 设备信息
     * @param channelId 通道id
     * @param rootElement 根节点
     * @param type 消息类型
     */
    private void handleDragZoom(Device device,String channelId,Element rootElement,SIPRequest request,DeviceControlType type){
        String cmdString = getText(rootElement,type.getVal());
        StringBuffer cmdXml = new StringBuffer(200);
        cmdXml.append("<" + type.getVal() + ">\r\n");
        cmdXml.append(cmdString);
        cmdXml.append("</" + type.getVal() + ">\r\n");
        try {
            cmder.dragZoomCmd(device,channelId,cmdXml.toString());
            responseAck(request, Response.OK);
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 拉框控制: {}", e.getMessage());
        }

    }

    /**
     * 处理看守位命令
     * @param device 设备信息
     * @param channelId 通道id
     * @param rootElement 根节点
     * @param request 请求信息
     * @param type 消息类型
     */
    private void handleHomePositionCmd(Device device,String channelId,Element rootElement,SIPRequest request,DeviceControlType type){
        //获取整个消息主体，我们只需要修改请求头即可
        String cmdString = getText(rootElement,type.getVal());
        try {
            cmder.homePositionCmd(device, channelId, cmdString,null,null,null,
                    errorResult -> onError(request,errorResult),
                    okResult -> onOk(request,okResult));
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 看守位设置: {}", e.getMessage());
        }
    }

    /**
     * 处理告警消息
     * @param device 设备信息
     * @param rootElement 根节点
     * @param request 请求信息
     */
    private void handleAlarmCmd(Device device,Element rootElement,SIPRequest request){
        //告警方法
        String alarmMethod = "";
        //告警类型
        String alarmType = "";
        Element info = rootElement.element("Info");
        if (info !=null){
            alarmMethod = getText(rootElement,"AlarmMethod");
            alarmType = getText(rootElement,"AlarmType");
        }
        try {
            cmder.alarmCmd(device, alarmMethod,alarmType,
                    errorResult -> onError(request,errorResult),
                    okResult -> onOk(request,okResult));
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 告警消息: {}", e.getMessage());
        }
    }

    /**
     * 处理录像控制
     * @param device 设备信息
     * @param channelId 通道id
     * @param rootElement 根节点
     * @param request 请求信息
     * @param type 消息类型
     */
    private void handleRecordCmd(Device device,String channelId,Element rootElement,SIPRequest request,DeviceControlType type){
        //获取整个消息主体，我们只需要修改请求头即可
        String cmdString = getText(rootElement,type.getVal());
        try {
            cmder.recordCmd(device, channelId,cmdString,
                    errorResult -> onError(request,errorResult),
                    okResult -> onOk(request,okResult));
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 录像控制: {}", e.getMessage());
        }
    }

    /**
     * 处理报警布防/撤防命令
     * @param device 设备信息
     * @param rootElement 根节点
     * @param request 请求信息
     * @param type 消息类型
     */
    private void handleGuardCmd(Device device,Element rootElement,SIPRequest request,DeviceControlType type){
        //获取整个消息主体，我们只需要修改请求头即可
        String cmdString = getText(rootElement,type.getVal());
        try {
            cmder.guardCmd(device, cmdString,
                    errorResult -> onError(request,errorResult),
                    okResult -> onOk(request,okResult));
        } catch (InvalidArgumentException | SipException | ParseException e) {
            logger.error("[命令发送失败] 布防/撤防命令: {}", e.getMessage());
        }
    }


    /**
     * 错误响应处理
     * @param request 请求
     * @param eventResult 响应结构
     */
    private void onError(SIPRequest request, SipSubscribe.EventResult eventResult){
        // 失败的回复
        try {
            responseAck(request, eventResult.statusCode, eventResult.msg);
        } catch (SipException | InvalidArgumentException | ParseException e) {
            logger.error("[命令发送失败] 回复: {}", e.getMessage());
        }
    }
    /**
     * 成功响应处理
     * @param request 请求
     * @param eventResult 响应结构
     */
    private void onOk(SIPRequest request, SipSubscribe.EventResult eventResult){
        // 成功的回复
        try {
            responseAck(request, eventResult.statusCode);
        } catch (SipException | InvalidArgumentException | ParseException e) {
            logger.error("[命令发送失败] 回复: {}", e.getMessage());
        }
    }
}