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

namespace CampusErrand.Models;

/// <summary>
/// 消息已读表
/// </summary>
public class MessageRead
{
    [Key]
    public int Id { get; set; }

    /// <summary>用户 ID</summary>
    public int UserId { get; set; }

    /// <summary>消息类型</summary>
    public MessageType MessageType { get; set; }

    /// <summary>消息 ID</summary>
    public int MessageId { get; set; }

    /// <summary>已读时间</summary>
    public DateTime ReadAt { get; set; } = DateTime.UtcNow;

    // 导航属性
    [ForeignKey(nameof(UserId))]
    public User? User { get; set; }
}