using SqlSugar;

namespace YY.Admin.Core.Models;

/// <summary>
/// 设备本地状态快照。
/// </summary>
[SugarTable("device_status_snapshot")]
public class DeviceStatus
{
    [SugarColumn(IsPrimaryKey = true, Length = 64)]
    public string DeviceId { get; set; } = string.Empty;

    [SugarColumn(IsNullable = false)]
    public bool IsOnline { get; set; }

    [SugarColumn(IsNullable = true)]
    public DateTime? LastHeartbeatAt { get; set; }

    [SugarColumn(ColumnDataType = "TEXT", IsNullable = true)]
    public string? StatusJson { get; set; }

    [SugarColumn(IsNullable = false)]
    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
}