package com.ruoyi.sales.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.approve.mapper.ApproveProcessMapper;
import com.ruoyi.approve.pojo.ApproveProcess;
import com.ruoyi.approve.service.impl.ApproveProcessServiceImpl;
import com.ruoyi.common.enums.FileNameType;
import com.ruoyi.common.enums.StockOutQualifiedRecordTypeEnum;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.framework.security.LoginUser;
import com.ruoyi.other.service.impl.TempFileServiceImpl;
import com.ruoyi.procurementrecord.utils.StockUtils;
import com.ruoyi.project.system.domain.SysDept;
import com.ruoyi.project.system.mapper.SysDeptMapper;
import com.ruoyi.project.system.mapper.SysUserMapper;
import com.ruoyi.sales.dto.SalesLedgerProductDto;
import com.ruoyi.sales.dto.ShippingInfoDto;
import com.ruoyi.sales.mapper.SalesLedgerMapper;
import com.ruoyi.sales.mapper.SalesLedgerProductMapper;
import com.ruoyi.sales.mapper.ShipmentApprovalMapper;
import com.ruoyi.sales.mapper.ShippingInfoMapper;
import com.ruoyi.sales.pojo.SalesLedger;
import com.ruoyi.sales.pojo.SalesLedgerProduct;
import com.ruoyi.sales.pojo.ShipmentApproval;
import com.ruoyi.sales.pojo.ShippingInfo;
import com.ruoyi.sales.service.ShippingInfoService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.IOException;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;

/**
 * @author :yys
 * @date : 2025/10/22 9:33
 */
@Service
@Slf4j
public class ShippingInfoServiceImpl extends ServiceImpl<ShippingInfoMapper, ShippingInfo> implements ShippingInfoService {

    @Autowired
    private ShippingInfoMapper shippingInfoMapper;

    @Autowired
    private TempFileServiceImpl tempFileService;
    @Autowired
    private SalesLedgerProductMapper salesLedgerProductMapper;
    @Autowired
    private StockUtils stockUtils;
    @Autowired
    private CommonFileServiceImpl commonFileService;

    @Autowired
    private ApproveProcessServiceImpl approveProcessService;

    @Autowired
    private ApproveProcessMapper approveProcessMapper;

    @Autowired
    private ShipmentApprovalMapper shipmentApprovalMapper;

    @Autowired
    private SalesLedgerMapper salesLedgerMapper;

    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private SysDeptMapper sysDeptMapper;

    @Override
    public IPage<ShippingInfoDto> listPage(Page page, ShippingInfo req) {
        IPage<ShippingInfoDto> listPage = shippingInfoMapper.listPage(page, req);
        listPage.getRecords().forEach(item ->{
            item.setCommonFileList(commonFileService.getFileListByBusinessId(item.getId(), FileNameType.SHIP.getValue()));
        });
        return listPage;
    }

    @Override
    public boolean deductStock(ShippingInfoDto req) throws IOException {
        ShippingInfo byId = this.getById(req.getId());
        if (byId == null) {
            throw new RuntimeException("发货信息不存在");
        }
        //扣减库存
        if(!"已发货".equals(byId.getStatus())){
            SalesLedgerProduct salesLedgerProduct = salesLedgerProductMapper.selectById(byId.getSalesLedgerProductId());
            stockUtils.substractStock(salesLedgerProduct.getProductModelId(), salesLedgerProduct.getQuantity(), StockOutQualifiedRecordTypeEnum.SALE_SHIP_STOCK_OUT.getCode(), req.getId());
        }
        byId.setExpressNumber(req.getExpressNumber());
        byId.setExpressCompany(req.getExpressCompany());
        byId.setStatus("已发货");
        byId.setShippingCarNumber(req.getShippingCarNumber());
        byId.setShippingDate(req.getShippingDate());
        boolean update = this.updateById(byId);
        // 迁移文件
        if(CollectionUtils.isNotEmpty(req.getTempFileIds())){
            tempFileService.migrateTempFilesToFormal(req.getId(), req.getTempFileIds(), FileNameType.SHIP.getValue());
        }
        return update ;
    }

    @Override
    public boolean delete(List<Long> ids) {
        List<ShippingInfo> shippingInfos = shippingInfoMapper.selectList(new LambdaQueryWrapper<ShippingInfo>()
                .in(ShippingInfo::getId, ids));
        if(CollectionUtils.isEmpty(shippingInfos)) return false;
        // 删除附件
        commonFileService.deleteByBusinessIds(ids, FileNameType.SHIP.getValue());
        // 扣已发货库存
        for (ShippingInfo shippingInfo : shippingInfos) {
            if("已发货".equals(shippingInfo.getStatus())) {
                stockUtils.deleteStockOutRecord(shippingInfo.getId(), StockOutQualifiedRecordTypeEnum.SALE_SHIP_STOCK_OUT.getCode());
            }
        }
        // 删除发货审批
        if(CollectionUtils.isNotEmpty(shippingInfos)){
            for (ShippingInfo shippingInfo : shippingInfos){
                ApproveProcess one = approveProcessService.getOne(new LambdaQueryWrapper<ApproveProcess>()
                        .like(ApproveProcess::getApproveReason, shippingInfo.getShippingNo()));
                if(one != null){
                    approveProcessService.delByIds(Collections.singletonList(one.getId()));
                }
            }
        }

        return this.removeBatchByIds(ids);
    }

    @Override
    public List<SalesLedgerProductDto> getReturnManagementDtoById(Long shippingId) {
        return shippingInfoMapper.getReturnManagementDtoById(shippingId );

    }

    @Override
    public List<ShippingInfo> getShippingInfoByCustomerName(String customerName) {
        return shippingInfoMapper.getShippingInfoByCustomerName(customerName);
    }

    /**
     * 一键发货 - 自动审批通过并出库
     * 创建审批记录，批准人为"月光"
     */
    @Override
    @Transactional
    public boolean oneClickShipping(ShippingInfoDto req) throws IOException {
        LoginUser loginUser = SecurityUtils.getLoginUser();

        // 获取销售台账产品信息
        SalesLedgerProduct salesLedgerProduct = salesLedgerProductMapper.selectById(req.getSalesLedgerProductId());
        if (salesLedgerProduct == null) {
            throw new RuntimeException("销售产品不存在");
        }

        // 获取销售台账信息
        SalesLedger salesLedger = salesLedgerMapper.selectById(req.getSalesLedgerId());

        // 查询"月光"用户
        com.ruoyi.project.system.domain.SysUser moonlightUser = sysUserMapper.selectOne(
            new LambdaQueryWrapper<com.ruoyi.project.system.domain.SysUser>()
                .eq(com.ruoyi.project.system.domain.SysUser::getNickName, "月光")
                .last("limit 1")
        );

        // 生成发货单号
        String shippingNo = com.ruoyi.common.utils.OrderUtils.countTodayByCreateTime(shippingInfoMapper, "SH", "shipping_no");

        // 创建发货记录，状态直接为"已发货"
        ShippingInfo shippingInfo = new ShippingInfo();
        shippingInfo.setShippingNo(shippingNo);
        shippingInfo.setSalesLedgerId(req.getSalesLedgerId());
        shippingInfo.setSalesLedgerProductId(req.getSalesLedgerProductId());
        shippingInfo.setType(req.getType());
        shippingInfo.setShippingDate(req.getShippingDate());
        shippingInfo.setShippingCarNumber(req.getShippingCarNumber());
        shippingInfo.setExpressCompany(req.getExpressCompany());
        shippingInfo.setExpressNumber(req.getExpressNumber());
        shippingInfo.setStatus("已发货");
        boolean save = this.save(shippingInfo);

        if (save) {
            // 创建审批流程记录，状态为审核完成(2)，批准人为"月光"
            String salesContractNo = salesLedger != null ? salesLedger.getSalesContractNo() : "";
            StringBuilder approveReason = new StringBuilder();
            approveReason.append("发货单号:").append(shippingNo);
            if (salesContractNo != null && !salesContractNo.isEmpty()) {
                approveReason.append("\n销售单号:").append(salesContractNo);
            }
            approveReason.append("\n").append(req.getType());
            if ("货车".equals(req.getType()) && req.getShippingCarNumber() != null && !req.getShippingCarNumber().isEmpty()) {
                approveReason.append(":").append(req.getShippingCarNumber());
            } else if ("快递".equals(req.getType()) && req.getExpressCompany() != null && !req.getExpressCompany().isEmpty()) {
                approveReason.append(":").append(req.getExpressCompany());
            }

            ApproveProcess approveProcess = new ApproveProcess();
            String approveId = com.ruoyi.common.utils.OrderUtils.countTodayByCreateTime(approveProcessMapper, "", "approve_id");
            approveProcess.setApproveId(approveId);
            approveProcess.setApproveUser(loginUser.getUserId());
            approveProcess.setApproveUserName(loginUser.getNickName());
            approveProcess.setApproveDeptId(loginUser.getCurrentDeptId());

            SysDept sysDept = sysDeptMapper.selectDeptById(loginUser.getCurrentDeptId());

            approveProcess.setApproveDeptName(sysDept.getDeptName());
            approveProcess.setApproveReason(approveReason.toString());
            approveProcess.setApproveUserIds(moonlightUser != null ? String.valueOf(moonlightUser.getUserId()) : "");
            approveProcess.setApproveUserNames(moonlightUser != null ? moonlightUser.getNickName() : "月光");
            approveProcess.setApproveUserCurrentId(moonlightUser != null ? moonlightUser.getUserId() : null);
            approveProcess.setApproveUserCurrentName(moonlightUser != null ? moonlightUser.getNickName() : "月光");
            approveProcess.setApproveStatus(2); // 审核完成
            approveProcess.setApproveType(7); // 发货审批
            approveProcess.setApproveDelete(0);
            approveProcess.setApproveTime(new Date()); // 申请时间
            approveProcess.setTenantId(loginUser.getCurrentDeptId());
            approveProcess.setCreateTime(LocalDateTime.now());
            approveProcess.setEndDate(new Date());
            approveProcessService.save(approveProcess);

            // 直接扣减库存
            stockUtils.substractStock(
                salesLedgerProduct.getProductModelId(),
                salesLedgerProduct.getQuantity(),
                StockOutQualifiedRecordTypeEnum.SALE_SHIP_STOCK_OUT.getCode(),
                shippingInfo.getId()
            );

            // 迁移附件
            if (CollectionUtils.isNotEmpty(req.getTempFileIds())) {
                tempFileService.migrateTempFilesToFormal(shippingInfo.getId(), req.getTempFileIds(), FileNameType.SHIP.getValue());
            }
        }

        return save;
    }

    /**
     * 批量一键发货 - 将销售台账下所有未发货的产品全部发货
     * 创建审批记录，批准人为"月光"
     */
    @Override
    @Transactional
    public boolean batchOneClickShipping(Long salesLedgerId, ShippingInfoDto req) throws IOException {
        LoginUser loginUser = SecurityUtils.getLoginUser();

        // 查询"月光"用户
        com.ruoyi.project.system.domain.SysUser moonlightUser = sysUserMapper.selectOne(
            new LambdaQueryWrapper<com.ruoyi.project.system.domain.SysUser>()
                .eq(com.ruoyi.project.system.domain.SysUser::getNickName, "月光")
                .last("limit 1")
        );

        // 获取销售台账信息
        SalesLedger salesLedger = salesLedgerMapper.selectById(salesLedgerId);
        String salesContractNo = salesLedger != null ? salesLedger.getSalesContractNo() : "";

        // 查询该销售台账下所有产品
        List<SalesLedgerProduct> products = salesLedgerProductMapper.selectList(
            new LambdaQueryWrapper<SalesLedgerProduct>()
                .eq(SalesLedgerProduct::getSalesLedgerId, salesLedgerId)
                .eq(SalesLedgerProduct::getType, 1) // 销售类型
        );

        if (CollectionUtils.isEmpty(products)) {
            throw new RuntimeException("该销售台账下没有产品");
        }

        // 过滤出未发货的产品（没有发货记录或发货状态不是"已发货"）
        List<SalesLedgerProduct> unshippedProducts = new ArrayList<>();
        for (SalesLedgerProduct product : products) {
            ShippingInfo existingShipping = shippingInfoMapper.selectOne(
                new LambdaQueryWrapper<ShippingInfo>()
                    .eq(ShippingInfo::getSalesLedgerProductId, product.getId())
                    .eq(ShippingInfo::getStatus, "已发货")
                    .last("limit 1")
            );
            if (existingShipping == null) {
                unshippedProducts.add(product);
            }
        }

        if (CollectionUtils.isEmpty(unshippedProducts)) {
            throw new RuntimeException("该销售台账下所有产品已发货");
        }

        // 收集所有发货单号用于合并审批
        StringBuilder allShippingNos = new StringBuilder();
        for (SalesLedgerProduct product : unshippedProducts) {
            // 生成发货单号
            String shippingNo = com.ruoyi.common.utils.OrderUtils.countTodayByCreateTime(shippingInfoMapper, "SH", "shipping_no");

            // 创建发货记录
            ShippingInfo shippingInfo = new ShippingInfo();
            shippingInfo.setShippingNo(shippingNo);
            shippingInfo.setSalesLedgerId(salesLedgerId);
            shippingInfo.setSalesLedgerProductId(product.getId());
            shippingInfo.setType(req.getType());
            shippingInfo.setShippingDate(req.getShippingDate());
            shippingInfo.setShippingCarNumber(req.getShippingCarNumber());
            shippingInfo.setExpressCompany(req.getExpressCompany());
            shippingInfo.setExpressNumber(req.getExpressNumber());
            shippingInfo.setStatus("已发货");

            boolean save = this.save(shippingInfo);
            if (save) {
                // 收集发货单号
                if (allShippingNos.length() > 0) {
                    allShippingNos.append("\n");
                }
                allShippingNos.append("发货单号:").append(shippingNo);

                // 扣减库存
                stockUtils.substractStock(
                    product.getProductModelId(),
                    product.getQuantity(),
                    StockOutQualifiedRecordTypeEnum.SALE_SHIP_STOCK_OUT.getCode(),
                    shippingInfo.getId()
                );
            }
        }

        // 创建合并的审批流程记录
        if (allShippingNos.length() > 0) {
            StringBuilder approveReason = new StringBuilder();
            approveReason.append(allShippingNos.toString());
            if (salesContractNo != null && !salesContractNo.isEmpty()) {
                approveReason.append("\n销售单号:").append(salesContractNo);
            }
            approveReason.append("\n").append(req.getType());
            if ("货车".equals(req.getType()) && req.getShippingCarNumber() != null && !req.getShippingCarNumber().isEmpty()) {
                approveReason.append(":").append(req.getShippingCarNumber());
            } else if ("快递".equals(req.getType()) && req.getExpressCompany() != null && !req.getExpressCompany().isEmpty()) {
                approveReason.append(":").append(req.getExpressCompany());
            }

            ApproveProcess approveProcess = new ApproveProcess();
            String approveId = com.ruoyi.common.utils.OrderUtils.countTodayByCreateTime(approveProcessMapper, "", "approve_id");
            approveProcess.setApproveId(approveId);
            approveProcess.setApproveUser(loginUser.getUserId());
            approveProcess.setApproveUserName(loginUser.getNickName());
            approveProcess.setApproveDeptId(loginUser.getCurrentDeptId());
            SysDept sysDept = sysDeptMapper.selectDeptById(loginUser.getCurrentDeptId());
            approveProcess.setApproveDeptName(sysDept.getDeptName());
            approveProcess.setApproveReason(approveReason.toString());
            approveProcess.setApproveUserIds(moonlightUser != null ? String.valueOf(moonlightUser.getUserId()) : "");
            approveProcess.setApproveUserNames(moonlightUser != null ? moonlightUser.getNickName() : "月光");
            approveProcess.setApproveUserCurrentId(moonlightUser != null ? moonlightUser.getUserId() : null);
            approveProcess.setApproveUserCurrentName(moonlightUser != null ? moonlightUser.getNickName() : "月光");
            approveProcess.setApproveStatus(2); // 审核完成
            approveProcess.setApproveType(7); // 发货审批
            approveProcess.setApproveDelete(0);
            approveProcess.setApproveTime(new Date()); // 申请时间
            approveProcess.setTenantId(loginUser.getCurrentDeptId());
            approveProcess.setCreateTime(LocalDateTime.now());
            approveProcess.setEndDate(new Date());
            approveProcessService.save(approveProcess);
        }

        return true;
    }
}