package com.maibu.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.maibu.core.business.*;
import com.maibu.core.business.device.NettyDevice;
import com.maibu.core.domain.entity.SysSite;
import com.maibu.core.domain.model.LoginUser;
import com.maibu.core.enums.DeviceTaskStaus;
import com.maibu.dto.*;
import com.maibu.manager.DeviceSessionManager;
import com.maibu.mapper.*;
import com.maibu.memory.GlobalMemory;
import com.maibu.memory.SiteMemory;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Random;
import java.util.stream.Collectors;

@Service
@Slf4j
public class DeviceTaskService {

    @Autowired
    private DevicePlanMapper devicePlanMapper;

    @Autowired
    private DevicePlanTaskMapper devicePlanTaskMapper;

    @Autowired
    private DeviceMapper deviceMapper;

    @Autowired
    private WorkRecordMapper workRecordMapper;


    @Autowired
    private DeviceSessionManager deviceSessionManager;

    @Autowired
    private SysSiteMapper sysSiteMapper;


    public int insertOrUpdate(DevicePlan devicePlan, LoginUser loginUser) {
        Long id = devicePlan.getId();
        SiteMemory siteMemory = GlobalMemory.getSiteMemory(devicePlan.getOrgId(), devicePlan.getSiteId());
        if (id != null) {
            devicePlan.setUpdateBy(loginUser.getUsername());
            devicePlan.setUpdateTime(LocalDateTime.now());
            transferDays(devicePlan);
            int i = devicePlanMapper.updateById(devicePlan);
            siteMemory.addDevicePlan(devicePlan);
            return i;
        } else {
            devicePlan.setTaskStaus(DeviceTaskStaus.NEW);
            devicePlan.setCreateTime(LocalDateTime.now());
            devicePlan.setCreateBy(loginUser.getUsername());
            transferDays(devicePlan);
            int i = devicePlanMapper.insert(devicePlan);
            siteMemory.addDevicePlan(devicePlan);
            return i;
        }
    }

    public void transferDays(DevicePlan devicePlan) {
        DeviceTaskPlanRule deviceTaskPlanRules = devicePlan.getDeviceTaskPlanRules();
        if (deviceTaskPlanRules != null && !CollectionUtils.isEmpty(deviceTaskPlanRules.getDays())) {
            List<String> days = new ArrayList<>();
            deviceTaskPlanRules.getDays().forEach(x -> {
                String day = null;
                switch (x) {
                    case MONDAY:
                        day = "周一";
                        break;
                    case TUESDAY:
                        day = "周二";
                        break;
                    case WEDNESDAY:
                        day = "周三";
                        break;
                    case THURSDAY:
                        day = "周四";
                        break;
                    case FRIDAY:
                        day = "周五";
                        break;
                    case SATURDAY:
                        day = "周六";
                        break;
                    case SUNDAY:
                        day = "周日";
                        break;
                }
                days.add(day);
            });
            devicePlan.getDeviceTaskPlanRules().setDaysTranslate(days);
        }
    }

    public List<DevicePlan> getDeviceTaskByUser(Long userId) {
        if (userId != null) {
            LambdaQueryWrapper<DevicePlan> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(DevicePlan::getUserId, userId);
            return transferDevicePlanData(devicePlanMapper.selectList(queryWrapper));
        } else {
            return new ArrayList<>();
        }
    }

    public List<DevicePlan> getSiteDevicePlan(Long siteId, LocalDate startTime, LocalDate endTime, String deviceId, DeviceTaskStaus taskStaus) {
        if (siteId != null) {
            LambdaQueryWrapper<DevicePlan> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(DevicePlan::getSiteId, siteId);
            if (taskStaus != null) {
                queryWrapper.eq(DevicePlan::getTaskStaus, taskStaus);
            }
            if (!StringUtils.isEmpty(deviceId)) {
                queryWrapper.eq(DevicePlan::getDeviceId, deviceId);
            }
            if (startTime != null && endTime != null) {
                queryWrapper.between(DevicePlan::getCreateTime, startTime, endTime);
            }
            return transferDevicePlanData(devicePlanMapper.selectList(queryWrapper));
        } else {
            return new ArrayList<>();
        }
    }

    public List<DevicePlan> getDeviceTask(DeviceTaskQueryDTO dto) {
        if (dto != null) {
            LambdaQueryWrapper<DevicePlan> queryWrapper = new LambdaQueryWrapper<>();
            if (dto.getUserId() != null) {
                queryWrapper.eq(DevicePlan::getUserId, dto.getUserId());
            }
            if (!StringUtils.isEmpty(dto.getDeviceId())) {
                queryWrapper.eq(DevicePlan::getDeviceId, dto.getDeviceId());
            }
            if (dto.getTaskStaus() != null) {
                queryWrapper.eq(DevicePlan::getTaskStaus, dto.getTaskStaus());
            }
            if (dto.getOrgId() != null) {
                queryWrapper.eq(DevicePlan::getOrgId, dto.getOrgId());
            }
            if (dto.getSiteId() != null) {
                queryWrapper.eq(DevicePlan::getSiteId, dto.getSiteId());
            }
            if (!StringUtils.isEmpty(dto.getPlanName())) {
                queryWrapper.like(DevicePlan::getPlanName, dto.getPlanName());
            }
            queryWrapper.eq(DevicePlan::getDelFlag, 0);
            List<DevicePlan> list = devicePlanMapper.selectList(queryWrapper);
            if (!CollectionUtils.isEmpty(list)) {
                list.forEach(x -> {
                    Device device = deviceMapper.selectDeviceBySerialNumber(x.getDeviceId());
                    if (device != null) {
                        x.setDeviceAlias(device.getDeviceAlias());
                    }
                });
            }
            return transferDevicePlanData(list);
        } else {
            return new ArrayList<>();
        }
    }

    public int delete(Long id) {
        DevicePlan planTask = devicePlanMapper.selectById(id);
        if (planTask != null) {
            if (planTask.getOrgId() == null) {
                SysSite site = sysSiteMapper.selectById(planTask.getSiteId());
                if (site != null) {
                    planTask.setOrgId(site.getOrgId());
                }
            }
            SiteMemory siteMemory = GlobalMemory.getSiteMemory(planTask.getOrgId(), planTask.getSiteId());
            if (siteMemory != null) {
                siteMemory.removeDevicePlan(planTask);
            }
            return devicePlanMapper.deleteById(id);
        }
        return 0;
    }

    public void start(Long id, LoginUser loginUser) {
        if (id != null) {
            DevicePlan planTask = devicePlanMapper.selectById(id);
            if (planTask != null) {
                planTask.setTaskStaus(DeviceTaskStaus.EXECUTING);
                planTask.setUpdateTime(LocalDateTime.now());
                planTask.setUpdateBy(loginUser.getUsername());
                devicePlanMapper.updateById(planTask);
            }
        }
    }

    public List<DevicePlanStatisticsDTO> getDevicePlanStatistics(Long userId) {
        List<DevicePlanStatisticsDTO> list = new ArrayList<>();
        LocalDate today = LocalDate.now();
        LocalDateTime monthStart = LocalDateTime.of(
                today.getYear(),    // 当前年
                today.getMonth(),   // 当前月
                1,                  // 当月第一天
                0, 0, 0, 0          // 时:分:秒:纳秒（00:00:00.000）
        );
        LocalDate lastDayOfMonth = today.withDayOfMonth(today.lengthOfMonth()); // 获取当月最后一天
        LocalDateTime monthEnd = LocalDateTime.of(
                lastDayOfMonth.getYear(),
                lastDayOfMonth.getMonth(),
                lastDayOfMonth.getDayOfMonth(),
                23, 59, 59, 999_999_999 // 时:分:秒:纳秒（23:59:59.999）
        );
        LambdaQueryWrapper<DevicePlan> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.ge(DevicePlan::getCreateTime, monthStart)
                .le(DevicePlan::getCreateTime, monthEnd)
                .eq(DevicePlan::getUserId, userId);
        List<DevicePlan> devicePlans = transferDevicePlanData(devicePlanMapper.selectList(queryWrapper));
        if (!CollectionUtils.isEmpty(devicePlans)) {
            List<LocalDate> dates = getMonthDays();
            for (LocalDate date : dates) {
                List<DevicePlan> plans = devicePlans.stream().filter(x -> x.getCreateTime().toLocalDate().equals(date)).collect(Collectors.toList());
                if (!CollectionUtils.isEmpty(plans)) {
                    DevicePlanStatisticsDTO dto = new DevicePlanStatisticsDTO();
                    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("M.d");
                    dto.setName(formatter.format(date));
                    long count = plans.stream().filter(x -> DeviceTaskStaus.FINISH.equals(x.getTaskStaus())).count();
                    dto.setCompleted((int) count);
                    dto.setPlanned(plans.size());
                    list.add(dto);
                }
            }
        }
        return list;
    }

    public List<LocalDate> getMonthDays() {
        LocalDate today = LocalDate.now();
        int totalDays = today.lengthOfMonth();
        LocalDate firstDayOfMonth = LocalDate.of(today.getYear(), today.getMonth(), 1);
        List<LocalDate> allDaysOfCurrentMonth = new ArrayList<>();
        for (int i = 0; i < totalDays; i++) {
            // 每次累加1天，获取当月每一天
            LocalDate currentDay = firstDayOfMonth.plusDays(i);
            allDaysOfCurrentMonth.add(currentDay);
        }
        return allDaysOfCurrentMonth;
    }

    public List<DevicePlanTaskStatisticsDTO> getDevicePlanTaskStatistics(Long userId) {
        List<DevicePlanTaskStatisticsDTO> list = new ArrayList<>();
        // 1. 获取当前日期
        LocalDate today = LocalDate.now();
        // 2. 构造当前月份的起始时间：当月第一天 00:00:00
        LocalDateTime monthStart = LocalDateTime.of(
                today.getYear(),    // 当前年
                today.getMonth(),   // 当前月
                1,                  // 当月第一天
                0, 0, 0, 0          // 时:分:秒:纳秒（00:00:00.000）
        );
        // 3. 构造当前月份的结束时间：当月最后一天 23:59:59.999
        LocalDate lastDayOfMonth = today.withDayOfMonth(today.lengthOfMonth()); // 获取当月最后一天
        LocalDateTime monthEnd = LocalDateTime.of(
                lastDayOfMonth.getYear(),
                lastDayOfMonth.getMonth(),
                lastDayOfMonth.getDayOfMonth(),
                23, 59, 59, 999_999_999 // 时:分:秒:纳秒（23:59:59.999）
        );
        // 4. 构建 LambdaQueryWrapper 进行范围查询
        LambdaQueryWrapper<DevicePlan> query = new LambdaQueryWrapper<>();
        query.eq(DevicePlan::getUserId, userId);
        List<DevicePlan> devicePlans = transferDevicePlanData(devicePlanMapper.selectList(query));
        if (CollectionUtils.isEmpty(devicePlans)) return new ArrayList<>();
        List<Long> planIds = devicePlans.stream().map(DevicePlan::getId).collect(Collectors.toList());
        if (CollectionUtils.isEmpty(planIds)) return new ArrayList<>();

        LambdaQueryWrapper<DevicePlanTask> queryWrapper = new LambdaQueryWrapper<>();
        // 核心：筛选 createTime 大于等于起始时间，且小于等于结束时间
        queryWrapper.ge(DevicePlanTask::getCreateTime, monthStart)
                .le(DevicePlanTask::getCreateTime, monthEnd)
                .in(DevicePlanTask::getPlanId, planIds);
        List<DevicePlanTask> devicePlanTasks = transferDeviceTaskData(devicePlanTaskMapper.selectList(queryWrapper));
        if (!CollectionUtils.isEmpty(devicePlanTasks)) {
            List<LocalDate> dates = getMonthDays();
            for (LocalDate date : dates) {
                List<DevicePlanTask> planTasks = devicePlanTasks.stream().filter(x -> x.getCreateTime().toLocalDate().equals(date)).collect(Collectors.toList());
                if (!CollectionUtils.isEmpty(planTasks)) {
                    DevicePlanTaskStatisticsDTO dto = new DevicePlanTaskStatisticsDTO();
                    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("M.d");
                    dto.setDate(formatter.format(date));
                    long finishCount = planTasks.stream().filter(x -> DeviceTaskStaus.FINISH.equals(x.getTaskStaus())).count();
                    dto.setSuccess((int) finishCount);
                    long failedCount = planTasks.stream().filter(x -> DeviceTaskStaus.FAILED.equals(x.getTaskStaus())).count();
                    dto.setFailed((int) failedCount);
                    long pauseCount = planTasks.stream().filter(x -> DeviceTaskStaus.PAUSE.equals(x.getTaskStaus())).count();
                    dto.setPaused((int) pauseCount);
                    list.add(dto);
                }
            }
        }
        return list;
    }


    public WorkRecord concurrentDevicePlanTask(String deviceId) {
        LambdaQueryWrapper<DevicePlanTask> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(DevicePlanTask::getDeviceId, deviceId)
                .eq(DevicePlanTask::getTaskStaus, DeviceTaskStaus.EXECUTING);
        List<DevicePlanTask> devicePlanTasks = devicePlanTaskMapper.selectList(queryWrapper);
        Long routId = CollectionUtils.isEmpty(devicePlanTasks) ? null : devicePlanTasks.get(0).getRouteId();
        return routId == null ? null : workRecordMapper.selectById(routId);
    }


    public List<DeviceWorkStatisticsDTO> workStatistics(Long userId) {
        //todo  update

        List<DeviceWorkStatisticsDTO> result = new ArrayList<>();
        Random random = new Random();
        int times = random.nextInt(100);
        int s = random.nextInt(1000);
        DeviceWorkStatisticsDTO dto = new DeviceWorkStatisticsDTO();
        dto.setLabel("割草次数");
        dto.setValue(times);
        DeviceWorkStatisticsDTO dto2 = new DeviceWorkStatisticsDTO();
        dto2.setLabel("割草时长(s)");
        dto2.setValue(s);
        DeviceWorkStatisticsDTO dto3 = new DeviceWorkStatisticsDTO();
        dto3.setLabel("割草面积(m2)");
        dto3.setValue(s * 5);
        result.add(dto);
        result.add(dto2);
        result.add(dto3);
        return result;
    }


    public List<DevicePlanTask> deviceTaskPool(DeviceTaskQueryDTO dto) {
        List<DevicePlanTask> list = new ArrayList<>();
        if (dto.getOrgId() == null) {
            SysSite site = sysSiteMapper.selectById(dto.getSiteId());
            if (site != null) {
                dto.setOrgId(site.getOrgId());
            }
        }
        SiteMemory siteMemory = GlobalMemory.getSiteMemory(dto.getOrgId(), dto.getSiteId());
        siteMemory.devicePlanTaskPrepareMap.values().forEach(list::addAll);
        list.addAll(SiteMemory.devicePlanTaskExecuteMap.values());
        if (dto.getTaskStaus() != null) {
            list = list.stream().filter(x -> x.getTaskStaus().equals(dto.getTaskStaus())).collect(Collectors.toList());
        }
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            list = list.stream().filter(x -> x.getDeviceId().equals(dto.getDeviceId())).collect(Collectors.toList());
        }
        if (dto.getPlanId() != null) {
            list = list.stream().filter(x -> x.getPlanId().equals(dto.getPlanId())).collect(Collectors.toList());
        }
        if (dto.getSiteId() != null) {
            list = list.stream().filter(x -> x.getSiteId().equals(dto.getSiteId())).collect(Collectors.toList());
        }
        if (dto.getOrgId() != null) {
            list = list.stream().filter(x -> x.getOrgId().equals(dto.getOrgId())).collect(Collectors.toList());
        }
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            list = list.stream().filter(x -> x.getDeviceId().equals(dto.getDeviceId())).collect(Collectors.toList());
        }
        return transferDeviceTaskData(list);
    }

    public List<DevicePlanTask> getSiteDeviceTaskHistory(DeviceTaskQueryDTO dto) {
        LambdaQueryWrapper<DevicePlanTask> queryWrapper = new LambdaQueryWrapper<>();
        if (dto.getSiteId() != null) {
            queryWrapper.eq(DevicePlanTask::getSiteId, dto.getSiteId());
        }
        if (dto.getOrgId() != null) {
            queryWrapper.eq(DevicePlanTask::getOrgId, dto.getOrgId());
        }
        if (dto.getTaskStaus() != null) {
            queryWrapper.eq(DevicePlanTask::getTaskStaus, dto.getTaskStaus());
        }
        if (dto.getPlanId() != null) {
            queryWrapper.eq(DevicePlanTask::getPlanId, dto.getPlanId());
        }
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            queryWrapper.eq(DevicePlanTask::getDeviceId, dto.getDeviceId());
        }
        return transferDeviceTaskData(devicePlanTaskMapper.selectList(queryWrapper));
    }


    public List<DevicePlan> transferDevicePlanData(List<DevicePlan> list) {
        if (CollectionUtils.isEmpty(list)) return list;
        list.forEach(x -> {
            DeviceTaskStaus taskStaus = x.getTaskStaus();
            x.setTaskStausTranslate(taskStaus.getDescription());
        });
        return list;
    }

    public List<DevicePlanTask> transferDeviceTaskData(List<DevicePlanTask> list) {
        if (CollectionUtils.isEmpty(list)) return list;
        list.forEach(x -> {
            DeviceTaskStaus taskStaus = x.getTaskStaus();
            x.setTaskStausTranslate(taskStaus.getDescription());
        });
        return list;
    }

    public boolean createDeviceTask(DeviceTaskCommandDTO dto, String username) {
        DevicePlanTask task = new DevicePlanTask();
        task.setOrgId(dto.getOrgId());
        task.setSiteId(dto.getSiteId());
        task.setTaskStaus(DeviceTaskStaus.NEW);
        task.setDeviceId(dto.getDeviceId());
        task.setCreateBy(username);
        task.setCreateTime(LocalDateTime.now());
        task.setRouteId(dto.getRouteId());
        task.setStartTime(dto.getStartTime());
        boolean result = devicePlanTaskMapper.saveOrUpdate(task);
        if (dto.getOrgId() == null) {
            SysSite site = sysSiteMapper.selectById(dto.getSiteId());
            if (site != null) {
                dto.setOrgId(site.getOrgId());
            }
        }
        SiteMemory siteMemory = GlobalMemory.getSiteMemory(task.getOrgId(), task.getSiteId());
        siteMemory.addDevicePlanPrepare(task);
        return result;
    }

    public boolean cancelTask(DeviceTaskCommandDTO dto, String username) {
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            NettyDevice device = deviceSessionManager.getDevice(dto.getDeviceId());
            if (device != null) {
                return device.cancelTask();
            }
        } else {
            Long taskId = dto.getTaskId();
//            Long siteId = dto.getSiteId();
//            Long orgId = dto.getOrgId();
            DevicePlanTask devicePlanTask = devicePlanTaskMapper.selectById(taskId);
            if (devicePlanTask != null) {
                NettyDevice device = deviceSessionManager.getDevice(devicePlanTask.getDeviceId());
                if (device != null) {
                    return device.cancelTask();
                }
            }
        }
        return false;
    }

    //todo 完善
    public boolean pauseTask(DeviceTaskCommandDTO dto, String username) {
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            NettyDevice device = deviceSessionManager.getDevice(dto.getDeviceId());
            if (device != null) {
                return device.pauseTask();
            }
        } else {
            Long taskId = dto.getTaskId();
            DevicePlanTask devicePlanTask = devicePlanTaskMapper.selectById(taskId);
            if (devicePlanTask != null) {
                devicePlanTask.setUpdateTime(LocalDateTime.now());
                devicePlanTask.setTaskStaus(DeviceTaskStaus.PAUSE);
                devicePlanTask.setUpdateBy(username);
                devicePlanTaskMapper.saveOrUpdate(devicePlanTask);
            }
        }
        return false;
    }


    //todo 完善
    public boolean recoveryTask(DeviceTaskCommandDTO dto, String username) {
        if (!StringUtils.isEmpty(dto.getDeviceId())) {
            NettyDevice device = deviceSessionManager.getDevice(dto.getDeviceId());
            if (device != null) {
                return device.recoveryTask();
            }
        } else {
            Long taskId = dto.getTaskId();
            Long siteId = dto.getSiteId();
            Long orgId = dto.getOrgId();
            DevicePlanTask devicePlanTask = devicePlanTaskMapper.selectById(taskId);
            SiteMemory siteMemory = GlobalMemory.getSiteMemory(orgId, siteId);
            DevicePlanTask executeTask = siteMemory.getDeviceExecuteTask(devicePlanTask.getDeviceId());
            if (Objects.equals(devicePlanTask.getId(), executeTask.getId())) {
                devicePlanTask.setUpdateTime(LocalDateTime.now());
                devicePlanTask.setTaskStaus(DeviceTaskStaus.EXECUTING);
                devicePlanTask.setUpdateBy(username);
                devicePlanTaskMapper.saveOrUpdate(devicePlanTask);
            }
        }
        return false;
    }

}