package com.ycl.service.impl;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.ycl.common.enums.business.WorkStationEnum;
import com.ycl.common.utils.DateUtils;
import com.ycl.common.utils.SecurityUtils;
import com.ycl.common.utils.StringUtils;
import com.ycl.domain.entity.ProjectInfo;
import com.ycl.domain.entity.WorkStationSchedule;
import com.ycl.domain.vo.DailyStatVO;
import com.ycl.factory.FlowServiceFactory;
import com.ycl.mapper.WorkStationScheduleMapper;
import com.ycl.service.WorkStationScheduleService;
import com.ycl.common.base.Result;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycl.domain.form.WorkStationScheduleForm;
import com.ycl.domain.vo.WorkStationScheduleVO;
import com.ycl.domain.query.WorkStationScheduleQuery;
import com.ycl.service.common.TaskCommonService;
import org.flowable.task.api.Task;
import org.flowable.task.api.TaskQuery;
import org.flowable.task.api.history.HistoricTaskInstance;
import org.flowable.task.api.history.HistoricTaskInstanceQuery;
import org.springframework.stereotype.Service;
import lombok.RequiredArgsConstructor;
import com.ycl.framework.utils.PageUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.*;
import java.util.stream.Collectors;

/**
 *  服务实现类
 *
 * @author zxl
 * @since 2025-12-05
 */
@Service
@RequiredArgsConstructor
public class WorkStationScheduleServiceImpl extends ServiceImpl<WorkStationScheduleMapper, WorkStationSchedule> implements WorkStationScheduleService {

    private final WorkStationScheduleMapper workStationScheduleMapper;

    private final FlowServiceFactory flowServiceFactory;

    private final TaskCommonService taskCommonService;
    private final IndexHomeServiceImpl indexHomeServiceImpl;

    /**
     * 添加
     * @param form
     * @return
     */
    @Override
    public Result add(WorkStationScheduleForm form) {
        WorkStationSchedule entity = WorkStationScheduleForm.getEntityByForm(form, null);
        Long userId = SecurityUtils.getUserId();
        entity.setUserId(userId);
        entity.setStatus(WorkStationEnum.Incomplete.name());
        baseMapper.insert(entity);
        return Result.ok("添加成功");
    }

    /**
     * 修改
     * @param form
     * @return
     */
    @Override
    public Result update(WorkStationScheduleForm form) {
        WorkStationSchedule entity = baseMapper.selectById(form.getId());

        // 为空抛IllegalArgumentException，做全局异常处理
        Assert.notNull(entity, "记录不存在");
        BeanUtils.copyProperties(form, entity);
        baseMapper.updateById(entity);
        return Result.ok("修改成功");
    }

    /**
     * 批量删除
     * @param ids
     * @return
     */
    @Override
    public Result remove(List<String> ids) {
        baseMapper.deleteBatchIds(ids);
        return Result.ok("删除成功");
    }

    /**
     * id删除
     * @param id
     * @return
     */
    @Override
    public Result removeById(String id) {
        baseMapper.deleteById(id);
        return Result.ok("删除成功");
    }

    /**
     * 分页查询
     * @param query
     * @return
     */
    @Override
    public Result page(WorkStationScheduleQuery query) {
        IPage<WorkStationScheduleVO> page = PageUtil.getPage(query, WorkStationScheduleVO.class);
        baseMapper.getPage(page, query);
        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    @Override
    public Result listByDate(WorkStationScheduleQuery query) {

        Integer projectId = null;
        if (!"all".equals(query.getProjectId())){
            projectId = Integer.valueOf(query.getProjectId());
        }
        Long userId = SecurityUtils.getUserId();
        //查询出指定时间段内的数据
        List<WorkStationScheduleVO> list = baseMapper.groupByProjectAndDate(userId,projectId, DateUtils.getMonthStartTime(query.getCompletedTime()), DateUtils.getMonthEndTime(query.getCompletedTime()));

        List<DailyStatVO> dailyStatVOList = new ArrayList<>();
        for (WorkStationScheduleVO vo : list) {
            if (vo == null) {
                continue;
            }
            DailyStatVO statVO = new DailyStatVO();
            statVO.setId(vo.getId() == null ? -1 : vo.getId());
            statVO.setTitle(StringUtils.isBlank(vo.getContent()) ? "无内容" : vo.getContent());
            Map<String, String> stringTimeMap = DateUtils.splitDateToDateAndTime(vo.getCompletedTime());
            String date = StringUtils.defaultIfBlank(stringTimeMap.get("date"), "");
            String time = StringUtils.defaultIfBlank(stringTimeMap.get("time"), "");
            statVO.setDate(date);
            statVO.setTime(time);
            statVO.setProject(StringUtils.isBlank(vo.getProjectName()) ? "未关联项目" : vo.getProjectName());
            statVO.setProjectId(vo.getProjectId());
            statVO.setCompletedTime(vo.getCompletedTime());
            dailyStatVOList.add(statVO);
        }

        return Result.ok().data(dailyStatVOList);
    }

    /**
     * 根据id查找
     * @param id
     * @return
     */
    @Override
    public Result detail(Integer id) {
        WorkStationScheduleVO vo = baseMapper.getById(id);
        Assert.notNull(vo, "记录不存在");
        return Result.ok().data(vo);
    }

    /**
     * 列表
     * @return
     */
    @Override
    public Result all() {
        List<WorkStationSchedule> entities = baseMapper.selectList(null);
        List<WorkStationScheduleVO> vos = entities.stream()
                .map(entity -> WorkStationScheduleVO.getVoByEntity(entity, null))
                .collect(Collectors.toList());

        return Result.ok().data(vos);
    }

    @Override
    public Result completedAchievements(Integer id) {
        WorkStationSchedule workStationSchedule = baseMapper.selectById(id);
        workStationSchedule.setStatus(WorkStationEnum.COMPLETED.name());
        baseMapper.updateById(workStationSchedule);
        return Result.ok();
    }

    @Override
    public Result countAchievements() {
        //获得个人已完成流程任务，并计算平均用时
        Long userId = SecurityUtils.getUserId();

        HistoricTaskInstanceQuery query = flowServiceFactory.getHistoryService()
                .createHistoricTaskInstanceQuery()
                .finished()
                .taskAssignee(SecurityUtils.getUserId() + "")
                .orderByHistoricTaskInstanceEndTime()
                .desc();
        if (!SecurityUtils.getLoginUser().getUser().isAdmin()) {
            query
                    .or()
                    .taskCandidateGroupIn(taskCommonService.getCurrentUserGroups())
                    .taskCandidateUser(SecurityUtils.getUserId() + "")
                    .taskAssignee(SecurityUtils.getUserId() + "")
                    .endOr();
        }

        List<HistoricTaskInstance> taskList = query.list();
        long totalDuration = 0L;
        int taskCount = 0;
        if (!CollectionUtils.isEmpty(taskList)) {
            taskCount = taskList.size();
        }

        for (HistoricTaskInstance task : taskList) {
            // 任务创建时间和完成时间
            Long createTime = task.getCreateTime().getTime();
            Long endTime = task.getEndTime().getTime();
            // 单个任务耗时（毫秒）
            long duration = endTime - createTime;
            totalDuration += duration;
        }
        double avgDurationMs = (double) totalDuration / taskCount; // 平均耗时（毫秒）
        double avgDurationSec = avgDurationMs / 1000; // 转换为秒
        double avgDurationMin = avgDurationSec / 60; // 转换为分钟
        BigDecimal  avgDurationHour = new BigDecimal(avgDurationMin / 60).setScale(2, RoundingMode.HALF_UP); // 转换为分钟

        System.out.println("用户完成任务总数：" + taskCount);
        System.out.println("平均耗时（秒）：" + avgDurationSec);
        System.out.println("平均耗时（分钟）：" + avgDurationMin);
        System.out.println("平均耗时（小时）：" + avgDurationHour);

        //查询 日程总数
        List<WorkStationSchedule> list = new LambdaQueryChainWrapper<>(baseMapper)
                .eq(WorkStationSchedule::getUserId, userId)
                .eq(WorkStationSchedule::getDeleted, Boolean.FALSE)
                .list();

        int count = 0;
        for (WorkStationSchedule workStationSchedule : list) {
            if (WorkStationEnum.COMPLETED.name().equals(workStationSchedule.getStatus())){
                count++;
            }
        }

        HashMap<String,Object> map = new HashMap<>();
        map.put("totalSchedules",list.size());
        map.put("completedSchedules",count);
        map.put("avgDuration",avgDurationHour.doubleValue());
        map.put("completedTasks",taskCount);
        return Result.ok().data(map);
    }

    @Override
    public Result countTodayTask() {
        Long userId = SecurityUtils.getUserId();
        Date now = new Date();
        Date dayStart = DateUtils.getDayStart(now);
        Date dayEnd = DateUtils.getDayEnd(now);
        List<WorkStationSchedule> list = new LambdaQueryChainWrapper<>(baseMapper)
                .eq(WorkStationSchedule::getUserId, SecurityUtils.getUserId())
                .eq(WorkStationSchedule::getDeleted, Boolean.FALSE)
                .between(WorkStationSchedule::getCompletedTime, dayStart, dayEnd)
                .list();
        HashMap<String,Object> map = new HashMap<>();
        map.put("todaySchedules",list.size());
        //查询今日处理的 的任务
        long claimedAndCompletedCount = flowServiceFactory.getHistoryService().createHistoricTaskInstanceQuery()
                .finished()
                .taskAssignee(userId+"") // 任务由当前用户认领（处理人是该用户）
                .taskCompletedAfter(dayStart)
                .taskCompletedBefore(dayEnd)
                .count();
        map.put("totalActiveTasks",claimedAndCompletedCount);
        int distinctTotal = indexHomeServiceImpl.countWaitTask();
        map.put("todayTasks",distinctTotal);
        return Result.ok().data(map);
    }

}