package com.ruoyi.inventory.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.ruoyi.basic.excel.SupplierManageExcelDto;
import com.ruoyi.basic.mapper.SupplierManageMapper;
import com.ruoyi.basic.pojo.SupplierManage;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.inventory.dto.StockoutDto;
import com.ruoyi.inventory.excel.StockOutExcelDto;
import com.ruoyi.inventory.mapper.StockManagementMapper;
import com.ruoyi.inventory.mapper.StockOutMapper;
import com.ruoyi.inventory.pojo.StockManagement;
import com.ruoyi.inventory.pojo.StockOut;
import com.ruoyi.inventory.service.StockOutService;

import com.ruoyi.purchase.mapper.ProductRecordMapper;
import com.ruoyi.purchase.pojo.ProductRecord;
import lombok.AllArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.List;

@Service
public class StockOutServiceImpl implements StockOutService {
    @Autowired
    private StockOutMapper stockOutMapper;
    @Autowired
    private StockManagementMapper stockManagementMapper;
    @Autowired
    private ProductRecordMapper productRecordMapper;
    @Autowired
    private SupplierManageMapper supplierManageMapper;


    @Override
    public int delStockOut(List<Integer> ids) {
        return stockOutMapper.deleteBatchIds(ids);
    }

    @Override
    public StockOut getStockOutById(Long id) {
        StockOut stockOut = stockOutMapper.selectById(id);
        return stockOut;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveStockout(StockOut stockOut) {
//    进行判断是否存在相同的产品id和供应商id,要判断product_id在表product_record中是否存在，因为stock_out表中的product_id是product_record表中的product_id关联的
        LambdaQueryWrapper<ProductRecord> queryWrapper1 = new LambdaQueryWrapper<>();
        queryWrapper1.eq(ProductRecord::getProductId, stockOut.getProductRecordid());
        ProductRecord productRecord = productRecordMapper.selectOne(queryWrapper1);
        if (productRecord == null) {
            throw new RuntimeException("产品不存在");
        }
        LambdaQueryWrapper<SupplierManage> queryWrapper2 = new LambdaQueryWrapper<>();
        queryWrapper2.eq(SupplierManage::getId, stockOut.getSupplierId());
        SupplierManage supplierManage = supplierManageMapper.selectOne(queryWrapper2);
        if (supplierManage == null) {
            throw new RuntimeException("供应商不存在");
        }
        LambdaQueryWrapper<StockManagement> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(StockManagement::getProductRecordid, stockOut.getProductRecordid());
        queryWrapper.eq(StockManagement::getSupplierId, stockOut.getSupplierId());
        StockManagement stockManagement = stockManagementMapper.selectOne(queryWrapper);
        if (stockManagement != null) {
            stockOut.setStockmanageId(stockManagement.getId());
            stockOutMapper.insert(stockOut);
        }else {
            throw new RuntimeException("库存中不存在该产品和供应商");
        }
    }

    @Override
    public int updateStockOut(StockOut stockOut) {
//      修改的时候要判断是否存在相同的产品id和供应商id
        LambdaQueryWrapper<ProductRecord> queryWrapper1 = new LambdaQueryWrapper<>();
        queryWrapper1.eq(ProductRecord::getProductId, stockOut.getProductRecordid());
        ProductRecord productRecord = productRecordMapper.selectOne(queryWrapper1);
        if (productRecord == null) {
            throw new RuntimeException("产品不存在");
        }
        LambdaQueryWrapper<SupplierManage> queryWrapper2 = new LambdaQueryWrapper<>();
        queryWrapper2.eq(SupplierManage::getId, stockOut.getSupplierId());
        SupplierManage supplierManage = supplierManageMapper.selectOne(queryWrapper2);
        if (supplierManage == null) {
            throw new RuntimeException("供应商不存在");
        }
        LambdaQueryWrapper<StockManagement> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(StockManagement::getProductRecordid, stockOut.getProductRecordid());
        queryWrapper.eq(StockManagement::getSupplierId, stockOut.getSupplierId());
        StockManagement stockManagement = stockManagementMapper.selectOne(queryWrapper);
        if (stockManagement != null) {
            stockOut.setStockmanageId(stockManagement.getId());
            return stockOutMapper.updateById(stockOut);
        }else {
            throw new RuntimeException("库存中不存在该产品和供应商");
        }
    }

    @Override
    public IPage<StockoutDto> selectStockOutPage(Page page, StockoutDto stockoutDto) {
        return stockOutMapper.selectStockOutBypage(page, stockoutDto);
    }

    @Override
    public void stockoutExport(HttpServletResponse response, StockoutDto stockoutDto) {
        List<StockOutExcelDto> stockoutList = stockOutMapper.stockoutExportList(stockoutDto);
        ExcelUtil<StockOutExcelDto> util = new ExcelUtil<StockOutExcelDto>(StockOutExcelDto.class);
        util.exportExcel(response, stockoutList, "供应商导出");
    }

}