package com.ruoyi.sales.controller;

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.ruoyi.approve.mapper.ApproveProcessMapper;
import com.ruoyi.approve.pojo.ApproveProcess;
import com.ruoyi.approve.service.impl.ApproveProcessServiceImpl;
import com.ruoyi.approve.vo.ApproveProcessVO;
import com.ruoyi.common.enums.FileNameType;
import com.ruoyi.common.utils.OrderUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.framework.aspectj.lang.annotation.Log;
import com.ruoyi.framework.aspectj.lang.enums.BusinessType;
import com.ruoyi.framework.security.LoginUser;
import com.ruoyi.framework.web.controller.BaseController;
import com.ruoyi.framework.web.domain.AjaxResult;
import com.ruoyi.other.service.impl.TempFileServiceImpl;
import com.ruoyi.procurementrecord.utils.StockUtils;
import com.ruoyi.sales.dto.ShippingInfoDto;
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.ISalesLedgerProductService;
import com.ruoyi.sales.service.ISalesLedgerService;
import com.ruoyi.sales.service.ShippingInfoService;
import com.ruoyi.sales.service.impl.CommonFileServiceImpl;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.commons.collections4.CollectionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.time.LocalDate;
import java.util.List;

/**
 * @author :yys
 * @date : 2025/10/22 9:34
 */
@RestController
@RequestMapping("/shippingInfo")
@Api(tags = "发货信息管理")
public class ShippingInfoController extends BaseController {

    @Autowired
    private ShippingInfoService shippingInfoService;

    @Autowired
    private CommonFileServiceImpl commonFileService;

    @Autowired
    private ApproveProcessServiceImpl approveProcessService;
    @Autowired
    private StockUtils stockUtils;
    @Autowired
    private ISalesLedgerService salesLedgerService;


    @GetMapping("/listPage")
    @ApiOperation("发货信息列表")
    public AjaxResult listPage(Page page, ShippingInfo req) {
        IPage<ShippingInfoDto> listPage = shippingInfoService.listPage(page,req);
        return AjaxResult.success(listPage);
    }

    @PostMapping("/add")
    @ApiOperation("添加发货信息")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.INSERT)
    public AjaxResult add(@RequestBody ShippingInfoDto req) throws Exception {
        LoginUser loginUser = SecurityUtils.getLoginUser();

        // 查询销售单号
        String salesContractNo = "";
        if (req.getSalesLedgerId() != null) {
            SalesLedger salesLedger = salesLedgerService.getById(req.getSalesLedgerId());
            if (salesLedger != null) {
                salesContractNo = salesLedger.getSalesContractNo();
            }
        }

        String sh = OrderUtils.countTodayByCreateTime(shippingInfoMapper, "SH", "shipping_no");

        // 查询该销售合同下是否有"待审核"的发货记录，用于合并审批（需审批人相同）
        boolean shouldMergeApproval = false;
        ApproveProcess existingApprove = null;
        List<ShippingInfo> pendingShippings = shippingInfoMapper.selectList(
            new LambdaQueryWrapper<ShippingInfo>()
                .eq(ShippingInfo::getSalesLedgerId, req.getSalesLedgerId())
                .eq(ShippingInfo::getStatus, "待审核")
        );
        if (!CollectionUtils.isEmpty(pendingShippings) && salesContractNo != null && !salesContractNo.isEmpty()) {
            // 找到对应的审批流程（通过销售单号匹配，且审批人相同）
            existingApprove = approveProcessService.getOne(
                new LambdaQueryWrapper<ApproveProcess>()
                    .like(ApproveProcess::getApproveReason, "销售单号:" + salesContractNo)
                    .eq(ApproveProcess::getApproveType, 7) // 发货审批类型
                    .eq(ApproveProcess::getApproveStatus, 0) // 待审核状态
                    .eq(ApproveProcess::getApproveUser, loginUser.getUserId()) // 审批人相同
                    .orderByDesc(ApproveProcess::getCreateTime)
                    .last("limit 1")
            );
            if (existingApprove != null) {
                shouldMergeApproval = true;
            }
        }

        // 生成当前发货信息的描述
        StringBuilder currentShippingDesc = new StringBuilder();
        currentShippingDesc.append("发货单号:").append(sh);
        if (salesContractNo != null && !salesContractNo.isEmpty()) {
            currentShippingDesc.append("\n销售单号:").append(salesContractNo);
        }
        currentShippingDesc.append("\n").append(req.getType());
        if ("货车".equals(req.getType()) && req.getShippingCarNumber() != null && !req.getShippingCarNumber().isEmpty()) {
            currentShippingDesc.append(":").append(req.getShippingCarNumber());
        } else if ("快递".equals(req.getType()) && req.getExpressCompany() != null && !req.getExpressCompany().isEmpty()) {
            currentShippingDesc.append(":").append(req.getExpressCompany());
        }

        if (shouldMergeApproval && existingApprove != null) {
            // 合并审批：将被合并的发货单号添加到审批原因中
            String updatedReason = existingApprove.getApproveReason() + "\n\n" + currentShippingDesc.toString();
            existingApprove.setApproveReason(updatedReason);
            approveProcessService.updateById(existingApprove);
        } else {
            // 创建新的审批流程
            ApproveProcessVO approveProcessVO = new ApproveProcessVO();
            approveProcessVO.setApproveType(7);
            approveProcessVO.setApproveDeptId(loginUser.getCurrentDeptId());
            approveProcessVO.setApproveReason(currentShippingDesc.toString());
            approveProcessVO.setApproveUserIds(req.getApproveUserIds());
            approveProcessVO.setApproveUser(loginUser.getUserId());
            approveProcessVO.setApproveTime(LocalDate.now().toString());
            approveProcessService.addApprove(approveProcessVO);
        }

        // 添加发货记录
        req.setShippingNo(sh);
        req.setStatus("待审核");
        boolean save = shippingInfoService.save(req);
        return save ? AjaxResult.success() : AjaxResult.error();
    }

    @ApiOperation("发货扣库存")
    @PostMapping("/deductStock")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.UPDATE)
    public AjaxResult deductStock(@RequestBody ShippingInfoDto req) throws IOException {
        return shippingInfoService.deductStock( req) ? AjaxResult.success() : AjaxResult.error();
    }

    @PostMapping("/update")
    @ApiOperation("修改发货信息")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.UPDATE)
    public AjaxResult update(@RequestBody ShippingInfo req) {
        ShippingInfo byId = shippingInfoService.getById(req.getId());
        if (byId == null) {
            return AjaxResult.error("发货信息不存在");
        }
        boolean update = shippingInfoService.updateById(req);
        return update ? AjaxResult.success() : AjaxResult.error();
    }

    @DeleteMapping("/delete")
    @ApiOperation("删除发货信息")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.DELETE)
    public AjaxResult delete(@RequestBody List<Long> ids) {

        return shippingInfoService.delete(ids) ? AjaxResult.success("删除成功") : AjaxResult.error("删除失败");
    }

    @Autowired
    private ShippingInfoMapper shippingInfoMapper;

    /**
     * 导出发货信息管理
     */
    @PostMapping("/export")
    @ApiOperation("导出发货信息")
    public void export(HttpServletResponse response) {
        List<ShippingInfo> list = shippingInfoMapper.listAll();
        ExcelUtil<ShippingInfo> util = new ExcelUtil<ShippingInfo>(ShippingInfo.class);
        util.exportExcel(response, list, "发货信息");
    }


    @GetMapping("/getByCustomerName")
    @ApiOperation("通过客户名称查询")
    public AjaxResult getByCustomerName(String customerName) {
        return AjaxResult.success(shippingInfoService.getShippingInfoByCustomerName(customerName));
    }

    /**
     * 一键发货 - 自动审批通过并出库
     */
    @PostMapping("/oneClickShipping")
    @ApiOperation("一键发货")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.INSERT)
    public AjaxResult oneClickShipping(@RequestBody ShippingInfoDto req) throws IOException {
        return shippingInfoService.oneClickShipping(req) ? AjaxResult.success("发货成功") : AjaxResult.error("发货失败");
    }

    /**
     * 批量一键发货 - 将销售台账下所有未发货的产品全部发货
     */
    @PostMapping("/batchOneClickShipping")
    @ApiOperation("批量一键发货")
    @Transactional(rollbackFor = Exception.class)
    @Log(title = "发货信息管理", businessType = BusinessType.INSERT)
    public AjaxResult batchOneClickShipping(@RequestBody ShippingInfoDto req) throws IOException {
        if (req.getSalesLedgerId() == null) {
            return AjaxResult.error("销售台账ID不能为空");
        }
        return shippingInfoService.batchOneClickShipping(req.getSalesLedgerId(), req) ? AjaxResult.success("批量发货成功") : AjaxResult.error("批量发货失败");
    }
}