# HotelKpiWconnectOvertimeListener.java

    package cloud.wconnect.workperformance.messagelistener.hotelkpi.modelevent;

    import cloud.wconnect.commonlib.cons.EventRedisKeyPrefixEnum;
    import cloud.wconnect.commonlib.cons.FunctionIdConstant;
    import cloud.wconnect.commonlib.cons.MoudleEventSubjectEnum;
    import cloud.wconnect.commonlib.pojo.ModuleEvent;
    import cloud.wconnect.commonlib.pojo.dto.PropertyDTO;
    import cloud.wconnect.commonlib.redis.PropertyI18nRedisService;
    import cloud.wconnect.commonlib.service.CommonService;
    import cloud.wconnect.commonlib.service.MailInternalService;
    import cloud.wconnect.commonlib.util.JsonUtils;
    import cloud.wconnect.commonlib.util.RateLimitUtils;
    import cloud.wconnect.workperformance.cons.BusinessEnum;
    import cloud.wconnect.workperformance.cons.hotelkpi.HotelKpiMetricsEnum;
    import cloud.wconnect.workperformance.cons.hotelkpi.HotelKpiTriggerTypeCons;
    import cloud.wconnect.workperformance.pojo.bo.modelevent.overtime.MorOvertimeEventBO;
    import cloud.wconnect.workperformance.service.hotelkpi.IHotelKpiCommonSummaryService;
    import cloud.wconnect.workperformance.service.hotelkpi.IHotelKpiWconnectOvertimeService;
    import com.fasterxml.jackson.databind.ObjectMapper;
    import com.google.common.collect.Lists;
    import jakarta.annotation.Resource;
    import lombok.extern.slf4j.Slf4j;
    import org.apache.commons.collections4.CollectionUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.springframework.context.event.EventListener;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.scheduling.annotation.Async;
    import org.springframework.stereotype.Component;

    import java.text.MessageFormat;
    import java.util.List;
    import java.util.Map;
    import java.util.Objects;
    import java.util.concurrent.TimeUnit;
    import java.util.function.Function;
    import java.util.stream.Collectors;

    /**
     * 事件监听: wconnect Overtime
     *
     * @author zc
     * @date 2024/07/22
     */
    @Slf4j
    @Component
    public class HotelKpiWconnectOvertimeListener {
        @Resource
        private IHotelKpiWconnectOvertimeService wconnectOvertimeService;
        @Resource
        private IHotelKpiCommonSummaryService commonSummaryService;
        @Resource
        private MailInternalService mailInternalService;
        @Resource
        private PropertyI18nRedisService propertyI18nRedisService;
        @Resource
        private RedisTemplate<String, Object> jsonRedisTemplate;
        @Resource
        private ObjectMapper objectMapper;
        @Resource
        private CommonService commonService;

        private static final String SUBJECT = MoudleEventSubjectEnum.MOR_OVERTIME_DETAILS.getSubject();
        private static final String BUSINESS = BusinessEnum.HOTEL_KPI.getBusiness();

        /**
         * 异步监听事件处理
         *
         * @param event 事件体
         * @author zc
         * @date 2024/7/22
         */
        @Async
        @EventListener
        public void handle(ModuleEvent event) {
            if (!StringUtils.equals(SUBJECT, event.getSubject())) {
                return;
            }

            log.info("HotelKpiWconnectOvertimeListener.handle start...");

            if (!preventConcurrency(event.getMessageId())) {
                log.warn("HotelKpiWconnectOvertimeListener.handle end... a machine has been executed.");
                return;
            }
            if (StringUtils.isBlank(event.getBody())) {
                log.warn("HotelKpiWconnectOvertimeListener.handle end... event body is blank.");
                return;
            }

            // body 转换为对象
            List<MorOvertimeEventBO> overtimeEventBOList = JsonUtils.convertStringToList(objectMapper,
                    event.getBody(), MorOvertimeEventBO.class);
            if (CollectionUtils.isEmpty(overtimeEventBOList)) {
                return;
            }

            // 保存数据
            wconnectOvertimeService.save(overtimeEventBOList);

            // 过滤出有效的资产
            List<Integer> propertyIds = overtimeEventBOList.stream().map(MorOvertimeEventBO::getPropertyId).toList();
            List<PropertyDTO> propertyDTOList = propertyI18nRedisService.list(propertyIds).stream()
                    .filter(propertyDTO -> propertyDTO.getStatus()
                            && commonService.checkOpenFunction(propertyDTO, FunctionIdConstant.HOTEL_KPI))
                    .toList();
            if (CollectionUtils.isEmpty(propertyDTOList)) {
                log.warn("HotelKpiWconnectOvertimeListener.handle end... property is closed or has not opened the hotel kpi function.");
                return;
            }
            Map<Integer, PropertyDTO> propertyId2Property = propertyDTOList.stream()
                    .collect(Collectors.toMap(PropertyDTO::getId, Function.identity()));
            try {
                for (MorOvertimeEventBO eventBO : overtimeEventBOList) {
                    PropertyDTO propertyDTO = propertyId2Property.get(eventBO.getPropertyId());
                    if (Objects.isNull(propertyDTO)) {
                        continue;
                    }
                    handleData(propertyDTO, eventBO.getStartDate(), eventBO.getEndDate());
                }

                log.info("HotelKpiWconnectOvertimeListener.handle end...");
            } catch (Exception e) {
                String propertyAbbr = propertyDTOList.stream().map(PropertyDTO::getAbbr)
                        .sorted().collect(Collectors.joining(","));
                if (RateLimitUtils.tryAcquire(this, propertyAbbr)) {
                    sendAlertEmail(propertyAbbr, e.getMessage(), event.getBody());
                }

                log.error("HotelKpiWconnectOvertimeListener.handle end... Process error.", e);
            }
        }

        /**
         * 处理数据
         *
         * @param propertyDTO 资产
         * @param startDate   数据开始日期(yyyyMMdd)
         * @param endDate     数据结束日期(yyyyMMdd)
         * @author zc
         * @date 2025/8/25
         */
        public void handleData(PropertyDTO propertyDTO, long startDate, long endDate) {
            List<Integer> metricsTypeList = Lists.newArrayList(HotelKpiMetricsEnum.OVERTIME_EXPENSE.getMetricsType());
            for (int metricsType : metricsTypeList) {
                commonSummaryService.triggerSetMetricsData(propertyDTO, HotelKpiTriggerTypeCons.OVERTIME,
                        startDate, endDate, metricsType);
            }
        }

        /**
         * 发送预警邮件
         *
         * @param propertyAbbr     资产标识
         * @param exceptionMessage 异常信息
         * @param eventBody        事件体
         * @author zc
         * @date 2025/8/7
         */
        private void sendAlertEmail(String propertyAbbr, String exceptionMessage, String eventBody) {
            String subject = "[Warning] - Handle the [W-connect Overtime] data error";
            String content = "Process error: " + exceptionMessage;
            String mailContent = MessageFormat.format("Module SNS Subject:{0}<br/>Business:{1}<br/>Property:{2}<br/>Content:{3}<br/>EventBody:{4}",
                    SUBJECT, BUSINESS, propertyAbbr, content, eventBody);
            mailInternalService.sendAlertEmail(subject, mailContent);
        }

        /**
         * 防止并发操作
         *
         * @param messageId 消息事件 id
         * @return boolean true：未并发，当前线程可以执行；false：检测到并发，当前线程应放弃执行
         * @author zc
         * @date 2025/8/7
         */
        private Boolean preventConcurrency(String messageId) {
            String key = EventRedisKeyPrefixEnum.KEY_PREFIX_FOR_MESSAGE.getDesc() +
                    StringUtils.join(Lists.newArrayList(SUBJECT, BUSINESS, messageId), ".");
            return jsonRedisTemplate.opsForValue().setIfAbsent(key, 0L, 1, TimeUnit.DAYS);
        }
    }