using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace AmtScanner.Api.Models;

/// <summary>
/// 操作系统设备实体
/// </summary>
public class OsDevice
{
    [Key]
    public long Id { get; set; }
    
    /// <summary>
    /// IP 地址
    /// </summary>
    [Required]
    public string IpAddress { get; set; } = string.Empty;
    
    /// <summary>
    /// 系统 UUID（SMBIOS UUID，用于与 AMT 绑定）
    /// </summary>
    public string? SystemUuid { get; set; }
    
    /// <summary>
    /// 主机名
    /// </summary>
    public string? Hostname { get; set; }
    
    /// <summary>
    /// 操作系统类型
    /// </summary>
    public OsType OsType { get; set; } = OsType.Unknown;
    
    /// <summary>
    /// 操作系统版本
    /// </summary>
    public string? OsVersion { get; set; }
    
    /// <summary>
    /// 操作系统架构
    /// </summary>
    public string? Architecture { get; set; }
    
    /// <summary>
    /// 当前登录用户
    /// </summary>
    public string? LoggedInUser { get; set; }
    
    /// <summary>
    /// 系统最后启动时间
    /// </summary>
    public DateTime? LastBootTime { get; set; }
    
    /// <summary>
    /// MAC 地址
    /// </summary>
    public string? MacAddress { get; set; }
    
    /// <summary>
    /// 是否在线
    /// </summary>
    public bool IsOnline { get; set; }
    
    /// <summary>
    /// 最后在线时间
    /// </summary>
    public DateTime? LastOnlineAt { get; set; }
    
    /// <summary>
    /// 发现时间
    /// </summary>
    public DateTime DiscoveredAt { get; set; } = DateTime.UtcNow;
    
    /// <summary>
    /// 最后更新时间
    /// </summary>
    public DateTime LastUpdatedAt { get; set; } = DateTime.UtcNow;
    
    /// <summary>
    /// 备注
    /// </summary>
    public string? Description { get; set; }
    
    /// <summary>
    /// 关联的 AMT 设备 ID
    /// </summary>
    public long? AmtDeviceId { get; set; }
    
    /// <summary>
    /// 关联的 AMT 设备
    /// </summary>
    [ForeignKey(nameof(AmtDeviceId))]
    public AmtDevice? AmtDevice { get; set; }
}

public enum OsType
{
    Unknown = 0,
    Windows = 1,
    Linux = 2,
    MacOS = 3
}