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

import com.genersoft.iot.vmp.gb28181.bean.*;
import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
import com.genersoft.iot.vmp.gb28181.session.RecordDataCatch;
import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
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.response.ResponseMessageHandler;
import com.genersoft.iot.vmp.utils.DateUtil;
import com.genersoft.iot.vmp.vmanager.bean.WVPResult;
import gov.nist.javax.sip.message.SIPRequest;
import org.dom4j.DocumentException;
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.InvalidArgumentException;
import javax.sip.RequestEvent;
import javax.sip.SipException;
import javax.sip.message.Response;
import java.text.ParseException;
import java.util.*;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.LinkedBlockingQueue;

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

/**
 * @author lin
 */
@Component
public class RecordInfoResponseMessageHandler extends SIPRequestProcessorParent implements InitializingBean, IMessageHandler {

    private final Logger logger = LoggerFactory.getLogger(RecordInfoResponseMessageHandler.class);
    private final String cmdType = "RecordInfo";

    private ConcurrentLinkedQueue<HandlerCatchData> taskQueue = new ConcurrentLinkedQueue<>();

    private boolean taskQueueHandlerRun = false;
    @Autowired
    private ResponseMessageHandler responseMessageHandler;

    @Autowired
    private RecordDataCatch recordDataCatch;

    @Autowired
    private DeferredResultHolder deferredResultHolder;

    @Autowired
    private EventPublisher eventPublisher;

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

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

    @Override
    public void handForDevice(RequestEvent evt, Device device, Element rootElement) {
        try {
            // 回复200 OK
             responseAck((SIPRequest) evt.getRequest(), Response.OK);
        }catch (SipException | InvalidArgumentException | ParseException e) {
            logger.error("[命令发送失败] 国标级联 国标录像: {}", e.getMessage());
        }
        taskQueue.offer(new HandlerCatchData(evt, device, rootElement));
        if (!taskQueueHandlerRun) {
            taskQueueHandlerRun = true;
            taskExecutor.execute(()->{
                while (!taskQueue.isEmpty()) {
                    try {
                        HandlerCatchData take = taskQueue.poll();
                        Element rootElementForCharset = getRootElement(take.getEvt(), take.getDevice().getCharset());
                        if (rootElement == null) {
                            logger.warn("[ 国标录像 ] content cannot be null, {}", evt.getRequest());
                            continue;
                        }
                        String sn = getText(rootElementForCharset, "SN");
                        String channelId = getText(rootElementForCharset, "DeviceID");
                        RecordInfo recordInfo = new RecordInfo();
                        recordInfo.setChannelId(channelId);
                        recordInfo.setDeviceId(take.getDevice().getDeviceId());
                        recordInfo.setSn(sn);
                        recordInfo.setName(getText(rootElementForCharset, "Name"));
                        String sumNumStr = getText(rootElementForCharset, "SumNum");
                        int sumNum = 0;
                        if (!ObjectUtils.isEmpty(sumNumStr)) {
                            sumNum = Integer.parseInt(sumNumStr);
                        }
                        recordInfo.setSumNum(sumNum);
                        Element recordListElement = rootElementForCharset.element("RecordList");
                        if (recordListElement == null || sumNum == 0) {
                            logger.info("无录像数据");
                            eventPublisher.recordEndEventPush(recordInfo);
                            recordDataCatch.put(take.getDevice().getDeviceId(), sn, sumNum, new ArrayList<>());
                            releaseRequest(take.getDevice().getDeviceId(), sn);
                        } else {
                            Iterator<Element> recordListIterator = recordListElement.elementIterator();
                            if (recordListIterator != null) {
                                List<RecordItem> recordList = new ArrayList<>();
                                // 遍历DeviceList
                                while (recordListIterator.hasNext()) {
                                    Element itemRecord = recordListIterator.next();
                                    Element recordElement = itemRecord.element("DeviceID");
                                    if (recordElement == null) {
                                        logger.info("记录为空，下一个...");
                                        continue;
                                    }
                                    RecordItem record = new RecordItem();
                                    record.setDeviceId(getText(itemRecord, "DeviceID"));
                                    record.setName(getText(itemRecord, "Name"));
                                    record.setFilePath(getText(itemRecord, "FilePath"));
                                    record.setFileSize(getText(itemRecord, "FileSize"));
                                    record.setAddress(getText(itemRecord, "Address"));

                                    String startTimeStr = getText(itemRecord, "StartTime");
                                    record.setStartTime(DateUtil.ISO8601Toyyyy_MM_dd_HH_mm_ss(startTimeStr));

                                    String endTimeStr = getText(itemRecord, "EndTime");
                                    record.setEndTime(DateUtil.ISO8601Toyyyy_MM_dd_HH_mm_ss(endTimeStr));

                                    record.setSecrecy(itemRecord.element("Secrecy") == null ? 0
                                            : Integer.parseInt(getText(itemRecord, "Secrecy")));
                                    record.setType(getText(itemRecord, "Type"));
                                    record.setRecorderId(getText(itemRecord, "RecorderID"));
                                    recordList.add(record);
                                }
                                recordInfo.setRecordList(recordList);
                                // 发送消息，如果是上级查询此录像，则会通过这里通知给上级
                                eventPublisher.recordEndEventPush(recordInfo);
                                int count = recordDataCatch.put(take.getDevice().getDeviceId(), sn, sumNum, recordList);
                                logger.info("[国标录像]， {}->{}: {}/{}", take.getDevice().getDeviceId(), sn, count, sumNum);
                            }

                            if (recordDataCatch.isComplete(take.getDevice().getDeviceId(), sn)){
                                releaseRequest(take.getDevice().getDeviceId(), sn);
                            }
                        }
                    } catch (DocumentException e) {
                        logger.error("xml解析异常： ", e);
                    }
                }
                taskQueueHandlerRun = false;
            });
        }
    }

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

    }

    public void releaseRequest(String deviceId, String sn){
        String key = DeferredResultHolder.CALLBACK_CMD_RECORDINFO + deviceId + sn;
        // 对数据进行排序
        Collections.sort(recordDataCatch.getRecordInfo(deviceId, sn).getRecordList());

        RequestMessage msg = new RequestMessage();
        msg.setKey(key);
        msg.setData(recordDataCatch.getRecordInfo(deviceId, sn));
        deferredResultHolder.invokeAllResult(msg);
        recordDataCatch.remove(deviceId, sn);
    }
}