package com.klp.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.klp.common.core.domain.entity.SysUser;
import com.klp.common.core.page.TableDataInfo;
import com.klp.common.core.domain.PageQuery;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.klp.common.exception.ServiceException;
import com.klp.common.utils.StringUtils;
import com.klp.domain.*;
import com.klp.domain.vo.*;
import com.klp.mapper.*;
import com.klp.system.service.ISysUserService;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import com.klp.domain.bo.WmsDeliveryPlanBo;
import com.klp.service.IWmsDeliveryPlanService;

import java.util.*;
import java.util.stream.Collectors;

/**
 * 发货计划Service业务层处理
 *
 * @author klp
 * @date 2025-11-25
 */
@RequiredArgsConstructor
@Service
public class WmsDeliveryPlanServiceImpl implements IWmsDeliveryPlanService {

    private final WmsDeliveryPlanMapper baseMapper;

    private final ISysUserService userService;

    private final WmsMaterialCoilMapper coilMapper;

    private final WmsDeliveryWaybillMapper waybillMapper;

    private final WmsDeliveryWaybillDetailMapper waybillDetailMapper;

    private final WmsCoilPendingActionMapper coilPendingActionMapper;

    /**
     * 查询发货计划
     */
    @Override
    public WmsDeliveryPlanVo queryById(Long planId){
        return baseMapper.selectVoById(planId);
    }

    /**
     * 查询发货计划列表
     */
    @Override
    public TableDataInfo<WmsDeliveryPlanVo> queryPageList(WmsDeliveryPlanBo bo, PageQuery pageQuery) {
        LambdaQueryWrapper<WmsDeliveryPlan> lqw = buildQueryWrapper(bo);
        Page<WmsDeliveryPlanVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
        List<WmsDeliveryPlanVo> records = result.getRecords();
        Set<String> userNames = records.stream()
            .flatMap(v -> java.util.stream.Stream.of(v.getCreateBy(), v.getUpdateBy()))
            .filter(StringUtils::isNotBlank)
            .collect(Collectors.toSet());
        if (!userNames.isEmpty()) {
            Map<String, String> nickMap = userService.selectNickNameMapByUserNames(records.stream()
                .flatMap(v -> java.util.stream.Stream.of(v.getCreateBy(), v.getUpdateBy()))
                .filter(StringUtils::isNotBlank)
                .distinct()
                .collect(Collectors.toList()));
            records.forEach(item -> {
                if (StringUtils.isNotBlank(item.getCreateBy())) {
                    item.setCreateByName(nickMap.getOrDefault(item.getCreateBy(), item.getCreateBy()));
                }
                if (StringUtils.isNotBlank(item.getUpdateBy())) {
                    item.setUpdateByName(nickMap.getOrDefault(item.getUpdateBy(), item.getUpdateBy()));
                }
            });
        }
        return TableDataInfo.build(result);
    }

    /**
     * 查询发货计划列表
     */
    @Override
    public List<WmsDeliveryPlanVo> queryList(WmsDeliveryPlanBo bo) {
        LambdaQueryWrapper<WmsDeliveryPlan> lqw = buildQueryWrapper(bo);
        return baseMapper.selectVoList(lqw);
    }

    private LambdaQueryWrapper<WmsDeliveryPlan> buildQueryWrapper(WmsDeliveryPlanBo bo) {
        Map<String, Object> params = bo.getParams();
        LambdaQueryWrapper<WmsDeliveryPlan> lqw = Wrappers.lambdaQuery();
        lqw.like(StringUtils.isNotBlank(bo.getPlanName()), WmsDeliveryPlan::getPlanName, bo.getPlanName());
        lqw.eq(bo.getPlanDate() != null, WmsDeliveryPlan::getPlanDate, bo.getPlanDate());
        lqw.eq(bo.getPlanType() != null, WmsDeliveryPlan::getPlanType, bo.getPlanType());
        lqw.eq(bo.getAuditStatus() != null, WmsDeliveryPlan::getAuditStatus, bo.getAuditStatus());
        return lqw;
    }

    /**
     * 新增发货计划
     */
    @Override
    public Boolean insertByBo(WmsDeliveryPlanBo bo) {
        WmsDeliveryPlan add = BeanUtil.toBean(bo, WmsDeliveryPlan.class);
        validEntityBeforeSave(add);
        boolean flag = baseMapper.insert(add) > 0;
        if (flag) {
            bo.setPlanId(add.getPlanId());
        }
        return flag;
    }

    /**
     * 修改发货计划
     */
    @Override
    public Boolean updateByBo(WmsDeliveryPlanBo bo) {
        WmsDeliveryPlan update = BeanUtil.toBean(bo, WmsDeliveryPlan.class);
        validEntityBeforeSave(update);
        return baseMapper.updateById(update) > 0;
    }

    /**
     * 保存前的数据校验
     */
    private void validEntityBeforeSave(WmsDeliveryPlan entity){
        //TODO 做一些数据校验,如唯一约束
    }

    /**
     * 批量删除发货计划
     */
    @Override
    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
        if(isValid){
            // 检查是否有关联的收货计划明细（actionType为401的操作记录）
            for (Long planId : ids) {
                // 查询与该计划关联的待操作记录数量
                long count = coilPendingActionMapper.selectCount(
                    Wrappers.<WmsCoilPendingAction>lambdaQuery()
                        .eq(WmsCoilPendingAction::getActionType, 401)
                        .eq(WmsCoilPendingAction::getWarehouseId, planId)
                        .eq(WmsCoilPendingAction::getDelFlag, 0)
                );

                if (count > 0) {
                    throw new ServiceException("发货计划下存在收货计划明细，无法删除");
                }
            }
        }
        return baseMapper.deleteBatchIds(ids) > 0;
    }


    /**
     * 获取发货计划统计信息
     *
     * @param planId 计划ID，可选
     * @return 统计信息列表
     */
    public List<WmsDeliveryPlanStatisticsVo> getDeliveryPlanStatistics(Long planId) {
        return baseMapper.selectDeliveryPlanStatistics(planId);
    }

    /**
     * 获取发货报表统计信息
     *
     * @param startTime 开始时间
     * @param endTime   结束时间
     * @return 报表统计信息（包含汇总和按类型统计）
     */
    public WmsDeliveryReportResultVo getDeliveryReport(Date startTime, Date endTime) {
        WmsDeliveryReportResultVo result = new WmsDeliveryReportResultVo();

        // 获取汇总数据
        WmsDeliveryReportSummaryVo summary = baseMapper.selectDeliveryReportSummary(startTime, endTime);
        result.setSummary(summary);

        // 获取按钢卷类型分类的数据
        List<WmsDeliveryReportByTypeVo> details = baseMapper.selectDeliveryReportByType(startTime, endTime);
        result.setDetails(details);

        return result;
    }

    @Override
    public List<WmsMaterialCoilVo> getSelectableCoilsByPlanId(Long planId) {
        if (planId == null) {
            return Collections.emptyList();
        }
        WmsDeliveryPlanVo planVo = baseMapper.selectVoById(planId);
        if (planVo == null || StringUtils.isBlank(planVo.getCoil())) {
            return Collections.emptyList();
        }
        Set<Long> planCoilIds = Arrays.stream(planVo.getCoil().split(","))
            .map(String::trim)
            .filter(StringUtils::isNotBlank)
            .map(Long::valueOf)
            .collect(Collectors.toSet());

        if (planCoilIds.isEmpty()) {
            return Collections.emptyList();
        }

        List<WmsDeliveryWaybill> waybills = waybillMapper.selectList(
            Wrappers.<WmsDeliveryWaybill>lambdaQuery().eq(WmsDeliveryWaybill::getPlanId, planId)
        );
        if (waybills == null || waybills.isEmpty()) {
            return queryCoilsByIds(planCoilIds);
        }
        Set<Long> waybillIds = waybills.stream().map(WmsDeliveryWaybill::getWaybillId).collect(Collectors.toSet());
        if (waybillIds.isEmpty()) {
            return queryCoilsByIds(planCoilIds);
        }
        List<WmsDeliveryWaybillDetail> details = waybillDetailMapper.selectList(
            Wrappers.<WmsDeliveryWaybillDetail>lambdaQuery().in(WmsDeliveryWaybillDetail::getWaybillId, waybillIds)
        );
        Set<Long> usedCoilIds = details == null ? Collections.emptySet() : details.stream()
            .map(WmsDeliveryWaybillDetail::getCoilId)
            .filter(Objects::nonNull)
            .collect(Collectors.toSet());

        planCoilIds.removeAll(usedCoilIds);
        if (planCoilIds.isEmpty()) {
            return Collections.emptyList();
        }
        return queryCoilsByIds(planCoilIds);
    }

    private List<WmsMaterialCoilVo> queryCoilsByIds(Set<Long> coilIds) {
        if (coilIds == null || coilIds.isEmpty()) {
            return Collections.emptyList();
        }
        QueryWrapper<WmsMaterialCoil> qw = new QueryWrapper<>();
        qw.in("mc.coil_id", coilIds);
        qw.eq("mc.del_flag", 0);
        //根据创建时间倒叙
        qw.orderByDesc("mc.create_time");
        // 使用动态联查以返回更完整的钢卷信息
        return coilMapper.selectVoListWithDynamicJoin(qw);
    }

}