package com.aps.core.service.impl;

import java.math.BigDecimal;
import java.util.*;

import cn.hutool.core.util.IdUtil;
import com.aps.common.core.utils.DateUtils;
import com.aps.common.security.utils.DictUtils;
import com.aps.common.security.utils.SecurityUtils;
import com.aps.core.domain.*;
import com.aps.core.mapper.*;
import com.aps.core.service.*;
import com.aps.system.api.domain.SysDictData;
import jakarta.annotation.Resource;
import com.aps.core.domain.ApsPlateStandardRequire;
import com.aps.core.mapper.ApsPlateStandardRequireMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.aps.core.service.IApsPlateStandardRequireService;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * 钣金工单标准需求Service业务层处理
 * 
 * @author zhl
 * @date 2025-05-06
 */
@Service
public class ApsPlateStandardRequireServiceImpl implements IApsPlateStandardRequireService 
{
    @Autowired
    private ApsPlateStandardRequireMapper apsPlateStandardRequireMapper;

    @Resource
    private ApsPlateStandardRequireBatchMapper requireBatchMapper;

    @Resource
    ApsPlatePlanMapper platePlanMapper;

    @Resource
    ApsBomHeaderMapper bomHeaderMapper;
    @Resource
    IApsBomService bomLineService;

    @Resource
    ApsMaterialStorageManagementMapper itemStorageMapper;

    @Resource
    ApsPlateStandardRequireBomStockDetailMapper plateBomStockDetailMapper;

    @Resource
    IApsPlateStandardRequireBomStockDetailService bomStockDetailService;
    @Resource
    ApsStandardProcessRouteHeaderMapper standardProcessRouteHeaderMapper;

    @Resource
    ApsStandardProcessRouteLineMapper ApsStandardProcessRouteLineMapper;

    @Resource
    ApsPlateStandardRequireBomOrderDetailMapper plateBomOrderDetailMapper;

    @Autowired
    private ApsPlatePlanMapper apsPlatePlanMapper;

    @Resource
    IApsPlateStandardRequireBomOrderDetailService bomOrderDetailService;

    @Resource
    IApsStandardProcessRouteLineService routeLineService;

    @Resource
    IApsPlateStandardRequireBatchService requireBatchService;

    /**
     * 查询钣金工单标准需求
     * 
     * @param id 钣金工单标准需求主键
     * @return 钣金工单标准需求
     */
    @Override
    public ApsPlateStandardRequire selectApsPlateStandardRequireById(Long id)
    {
        return apsPlateStandardRequireMapper.selectApsPlateStandardRequireById(id);
    }

    /**
     * 查询钣金工单标准需求列表
     * 
     * @param apsPlateStandardRequire 钣金工单标准需求
     * @return 钣金工单标准需求
     */
    @Override
    public List<ApsPlateStandardRequire> selectApsPlateStandardRequireList(ApsPlateStandardRequire apsPlateStandardRequire)
    {
        return apsPlateStandardRequireMapper.selectApsPlateStandardRequireList(apsPlateStandardRequire);
    }

    /**
     * 新增钣金工单标准需求
     * 
     * @param apsPlateStandardRequire 钣金工单标准需求
     * @return 结果
     */
    @Override
    public int insertApsPlateStandardRequire(ApsPlateStandardRequire apsPlateStandardRequire)
    {
        apsPlateStandardRequire.setCreateTime(DateUtils.getNowDate());
        return apsPlateStandardRequireMapper.insertApsPlateStandardRequire(apsPlateStandardRequire);
    }

    /**
     * 修改钣金工单标准需求
     * 
     * @param apsPlateStandardRequire 钣金工单标准需求
     * @return 结果
     */
    @Override
    public int updateApsPlateStandardRequire(ApsPlateStandardRequire apsPlateStandardRequire)
    {
        apsPlateStandardRequire.setUpdateTime(DateUtils.getNowDate());
        return apsPlateStandardRequireMapper.updateApsPlateStandardRequire(apsPlateStandardRequire);
    }

    /**
     * 批量删除钣金工单标准需求
     * 
     * @param ids 需要删除的钣金工单标准需求主键
     * @return 结果
     */
    @Override
    public int deleteApsPlateStandardRequireByIds(Long[] ids)
    {
        return apsPlateStandardRequireMapper.deleteApsPlateStandardRequireByIds(ids);
    }

    /**
     * 删除钣金工单标准需求信息
     * 
     * @param id 钣金工单标准需求主键
     * @return 结果
     */
    @Override
    public int deleteApsPlateStandardRequireById(Long id)
    {
        return apsPlateStandardRequireMapper.deleteApsPlateStandardRequireById(id);
    }

    /**
     * 钣金供应缺口报表
     * @param apsPlateStandardRequire
     * @return
     */
    @Override
    public List<ApsPlateStandardRequire> selectPlateSupplyGapList(ApsPlateStandardRequire apsPlateStandardRequire) {
        return apsPlateStandardRequireMapper.selectPlateSupplyGapList(apsPlateStandardRequire);
    }

    @Transactional
    @Override
    public void generatorPlan(){

        /*初始化数据*/
        requireBatchService.initRequireBatch();
        /*定义工厂为南通 */
        String plantCode="FORTUNA";
        /*定义主单类型为钣金主单*/
        String mainOrderType = "0";
        /*生成新批次号*/
        String batchNum= requireBatchService.getNewBatchNumber();
        /*获取钣金主单信息*/
        List<ApsPlatePlan> mainPlans = platePlanMapper.selectPlatePlanByPlantMajor(plantCode,mainOrderType);
        for (ApsPlatePlan mainPlan : mainPlans) {
            String itemNumber = mainPlan.getItemNumber();
            /*根据料号 获取BOM Header */
            /*当前Bom节点处理完成后，处理下级BOM*/

            List<ApsPlateStandardRequire> requiresList=new ArrayList<>();

            getBomRequires(plantCode, "0","0",itemNumber,BigDecimal.ONE, batchNum, null, mainPlan, requiresList, 0L);

            // 批量插入以提高性能
            if (!requiresList.isEmpty()) {
                int batchSize = 1000;
                for (int i = 0; i < requiresList.size(); i += batchSize) {
                    int end = Math.min(i + batchSize, requiresList.size());
                    List<ApsPlateStandardRequire> batch = requiresList.subList(i, end);
                    apsPlateStandardRequireMapper.batchInsert(batch);
                }
            }
        }
    }

    /**
     * 构建需求信息
     *
     * @param plant 工厂代码
     * @param bomHeaderCode BOM上级物料编码
     * @param bomLineId BOM行ID
     * @param itemCode 物料代码
     * @param itemNum 物料数量
     * @param batchNum 批次号
     * @param upLevelStartDate 上级工序的开始日期
     * @param plan 计划对象
     * @param allRequires 所有需求的列表
     * @param level 层级
     */
    private void getBomRequires(String plant, String bomHeaderCode, String bomLineId,String itemCode,BigDecimal itemNum, String batchNum, Date upLevelStartDate, ApsPlatePlan plan, List<ApsPlateStandardRequire> allRequires, Long level) {
        /*构建需求信息*/
        ApsPlateStandardRequire require = new ApsPlateStandardRequire();
        require.setId(IdUtil.getSnowflakeNextId());
        require.setRequireTrackId(plan.getId() + "");
        require.setBatchNumber(batchNum);
        require.setDocNum(plan.getDocumentNumber());
        require.setOrgCode(plant);
        require.setBomHeaderCode(bomHeaderCode);
        require.setBomLineId(bomLineId);
        require.setBomLineCode(itemCode);
        require.setBomLineLevel(level);
        require.setBomUseAmount(itemNum);
        require.setCreateTime(DateUtils.getNowDate());
        require.setCreateBy(SecurityUtils.getUsername());
        require.setDelFlag("0");
        require.setProductionBase(plan.getProductionBase());
        /*计算需求数量*/
        if (level == 0) {
            require.setBomUseAmount(BigDecimal.ONE);
            require.setCompleteDate(plan.getPlanEndDay());
            require.setDemandDate(plan.getPlanEndDay());
        } else {
            require.setBomUseAmount(itemNum.multiply(plan.getProductionQuantity()));
        }
        /*查找库存，计算净需求，保存剩余库存，保存库存扣减明细*/
        BigDecimal remainderStock = BigDecimal.ZERO;
        /*默认净需求为BOM用量*/
        require.setNetRequirement(require.getBomUseAmount());
        Optional<ApsMaterialStorageManagement> itemStorage = getItemStorage(plant, itemCode);
        if (itemStorage.isPresent()) {
            ApsMaterialStorageManagement storage = itemStorage.get();
            /*剩余库存*/
            remainderStock = storage.getRemainderStock();
            /*计算净需求 默认=需求数量*/
            if (remainderStock.compareTo(BigDecimal.ZERO) == 0) {
                require.setNetRequirement(require.getBomUseAmount());
            }
            if (remainderStock.compareTo(BigDecimal.ZERO) > 0) {
                BigDecimal subtract = require.getBomUseAmount().subtract(remainderStock);
                BigDecimal deductionAmount = BigDecimal.ZERO;
                BigDecimal afterStockAmount = BigDecimal.ZERO;
                if (subtract.compareTo(BigDecimal.ZERO) >= 0) {
                    deductionAmount = remainderStock;
                    afterStockAmount = BigDecimal.ZERO;
                    require.setNetRequirement(subtract);
                } else {
                    deductionAmount = require.getBomUseAmount();
                    afterStockAmount = remainderStock.subtract(deductionAmount);
                    require.setNetRequirement(BigDecimal.ZERO);
                }
                /*记录库存剩余数量，记录库存使用记录*/
                bomStockDetailService.saveStorageAndDetail(storage, plan, bomLineId,itemCode, batchNum, deductionAmount, afterStockAmount,require.getId());
            }
        }
        /*未匹配数量，默认为净需求*/
        require.setUnmatchedDemandAmount(require.getNetRequirement());
        /*工艺路线总需求*/
        ApsStandardProcessRouteLine routeHeader = routeLineService.getRouteLineTotalTime(require);
        String routeId = routeHeader.getRouteId();
        BigDecimal totalRouteTime = routeHeader.getRouteTime();
        long millisecond = 60 * 60 * 1000L;
        long totalRouteMillisecond = totalRouteTime.multiply(BigDecimal.valueOf(millisecond)).longValue();
        require.setProcessRouteId(routeId);
        require.setProcessRouteHours(String.valueOf(totalRouteTime));

        /*完成时间，level=0 时默认为工单的计划完成日期*/
        Date completeDate = plan.getPlanEndDay();
        /*预留天数*/
        Long reservedDay = getReservedDays();
        if (level > 0) {
            /* 当前需求完成日期为上阶层需求的开始时间 - 预留天数(转换为毫秒)*/
            long reservedMillisecond = reservedDay * 24 * millisecond;
            completeDate.setTime(upLevelStartDate.getTime() - reservedMillisecond);
        }
        /*设置完成日期*/
        require.setCompleteDate(completeDate);
        require.setDemandDate(completeDate);
        /*设置开始时间*/
        Date startDay = new Date();
        startDay.setTime(completeDate.getTime() - totalRouteMillisecond);
        require.setStartDate(startDay);

        /*计算是否有风险*/
        require.setHasDelayRisk("0");
        Date dateZero = getDateZero(DateUtils.getNowDate());
        if (startDay.before(dateZero)) {
            require.setHasDelayRisk("1");
        }

        /*生产基地*/
        require.setProductionBase(plan.getProductionBase());

        require.setMatchState("已匹配");
        require.setMatchMode("库存匹配");
        if (require.getNetRequirement().compareTo(BigDecimal.ZERO) > 0) {
            require.setMatchState("待匹配");
            require.setMatchMode("工单匹配");
            /*使用子件工单进行需求匹配*/
            matchRequireAndSubPlan(require);
        }
        allRequires.add(require);
        if (require.getNetRequirement().compareTo(BigDecimal.ZERO) > 0) {
            /*当前Bom节点处理完成后，处理下级BOM*/
            long nextLevel=level+1;
            List<ApsBom> bomLineList = bomLineService.selectApsBomLineList(plant, itemCode);
            if (!bomLineList.isEmpty()) {
                bomLineList.forEach(line -> {
                    getBomRequires(plant, itemCode, line.getBomLineId(),line.getItemCode() ,line.getNum() , batchNum, require.getStartDate(), plan, allRequires, nextLevel);
                });
            }
        }
    }
    /**
     * 获取物料库存信息
     * */
    private Optional<ApsMaterialStorageManagement> getItemStorage(String plant, String itemNumber) {
        ApsMaterialStorageManagement storageParam = new ApsMaterialStorageManagement();
        storageParam.setItemNumber(itemNumber);
        storageParam.setApplicableFactories(plant);
        return itemStorageMapper.selectApsMaterialStorageManagementList(storageParam).stream()
                .findFirst();
    }

    /**
     * 获取钣金计划 预留天数
     * */
    private Long getReservedDays(){
        Long days=0L;
        List<SysDictData> dictDataList = DictUtils.getDictCache("aps_is_suspended");
        if (dictDataList != null) {
            Long.getLong(dictDataList.get(0).getDictValue());
        }
        return days;
    }

    /**
    * 使用子件工单匹配需求中的净需求
    * */

    private void matchRequireAndSubPlan(ApsPlateStandardRequire require) {
        BigDecimal netRequirement = require.getNetRequirement();
        require.setMatchMode("工单匹配");
        if (netRequirement.compareTo(BigDecimal.ZERO) > 0) {
            ApsPlatePlan platePlan = apsPlatePlanMapper.selectUnMatchPlateSubPlan(require.getOrgCode(),  require.getBomLineCode());
            /*子件工单的未匹配数量 作为当前的库存*/
            while (platePlan != null && netRequirement.compareTo(BigDecimal.ZERO) > 0) {
                BigDecimal stock = platePlan.getUnmatchedQuantity();
                if (netRequirement.compareTo(stock) < 0) {
                    /* 库存数量 大于 净需求数量*/
                    /* 净需求数量=0 ，子件工单未匹配数量= 库存-净需求*/
                    BigDecimal subtract = stock.subtract(netRequirement);
                    bomOrderDetailService.savePlastPlanAndBomOrderDetail(require, platePlan, subtract, stock, netRequirement);
                    netRequirement = BigDecimal.ZERO;
                    require.setMatchState("已匹配");
                    require.setUnmatchedDemandAmount(netRequirement);
                    /*净需求已经被满足，不需要继续匹配*/

                } else if (netRequirement.compareTo(stock) == 0) {
                    /*净需求数量 == 库存数量*/

                    BigDecimal subtract = BigDecimal.ZERO;
                    bomOrderDetailService.savePlastPlanAndBomOrderDetail(require, platePlan, subtract, stock, netRequirement);
                    netRequirement = BigDecimal.ZERO;
                    require.setMatchState("已匹配");
                    require.setUnmatchedDemandAmount(netRequirement);
                    /*净需求已经被满足，不需要继续匹配*/
                }
                if (netRequirement.compareTo(stock) > 0) {
                    /*需求大于库存*/
                    /*净需求 被部分满足 */
                    BigDecimal rest = netRequirement.subtract(stock);
                    require.setMatchState("匹配中");
                    /*工单 未匹配数量为0 全部用于匹配需求*/
                    bomOrderDetailService.savePlastPlanAndBomOrderDetail(require, platePlan, BigDecimal.ZERO, stock, netRequirement);
                    /*净需求未被满足，需要继续匹配*/
                    platePlan = apsPlatePlanMapper.selectUnMatchPlateSubPlan(require.getOrgCode(),  require.getBomLineCode());
                    /*剩余净需求*/
                    netRequirement = rest;
                    require.setUnmatchedDemandAmount(netRequirement);
                }
            }
        }
        require.setUnmatchedDemandAmount(require.getNetRequirement());

    }


    /**
     * 获取日期零点
     * */
    private Date getDateZero(Date date){
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return calendar.getTime();
    }

}