package com.erp.example.seata.mapper;

import com.erp.example.seata.entity.Inventory;
import org.apache.ibatis.annotations.*;

@Mapper
public interface InventoryMapper {
    
    @Update("UPDATE inventory SET stock=#{stock}, reserved_stock=#{reservedStock}, update_time=NOW() WHERE product_id=#{productId}")
    void update(Inventory inventory);
    
    @Select("SELECT * FROM inventory WHERE product_id = #{productId}")
    @Results({
        @Result(property = "id", column = "id"),
        @Result(property = "productId", column = "product_id"),
        @Result(property = "productName", column = "product_name"),
        @Result(property = "stock", column = "stock"),
        @Result(property = "reservedStock", column = "reserved_stock"),
        @Result(property = "availableStock", column = "available_stock"),
        @Result(property = "warehouse", column = "warehouse"),
        @Result(property = "updateTime", column = "update_time")
    })
    Inventory findByProductId(@Param("productId") Long productId);
}