package com.ruoyi.procurementrecord.utils;

import com.ruoyi.procurementrecord.mapper.ProcurementRecordMapper;
import com.ruoyi.procurementrecord.mapper.ProcurementRecordOutMapper;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;

@Component
@RequiredArgsConstructor
public class StockUtils {
    private final ProcurementRecordOutMapper procurementRecordOutMapper;
    private final ProcurementRecordMapper procurementRecordMapper;

    // 获取商品入库数量,出库数量,剩余库存
    public Map<String, BigDecimal> getStockQuantity(Long productModelId) {
        // 入库数量
        BigDecimal sumQuantity = procurementRecordMapper.getSumQuantity(productModelId);
        // 出库数量
        BigDecimal outQuantity = procurementRecordOutMapper.getSumQuantity(productModelId);
        // 剩余库存
        BigDecimal stockQuantity = outQuantity.compareTo(sumQuantity) > 0 ? BigDecimal.ZERO : sumQuantity.subtract(outQuantity);
        Map<String, BigDecimal> stockMap = new HashMap<>();
        stockMap.put("inboundNum", sumQuantity);
        stockMap.put("outboundNum", outQuantity);
        stockMap.put("stockQuantity", stockQuantity);
        return stockMap;
    }
}