using FreeSql.DataAnnotations;

namespace Store.Modules.CloudProduct.Entities;

/// <summary>跨用户复用的图片识别数据，仅存储成功识别结果。</summary>
[Table(Name = "image_analysis_cache")]
public sealed class ImageAnalysisCache
{
    /// <summary>客户端指定的 MD5 缓存键，统一保存为 32 位小写十六进制。</summary>
    [Column(IsPrimary = true, StringLength = 32)]
    public string CacheKey { get; set; } = "";
    /// <summary>模型识别结果的 JSON 字符串数组，空数组表示未识别到文字或品牌。</summary>
    [Column(DbType = "longtext")]
    public string RecognitionResult { get; set; } = "";
    /// <summary>缓存最近更新时间，UTC。</summary>
    public DateTime UpdatedAt { get; set; }
}