using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Wood.Entity.SystemManage
{
	/// <summary>
	/// 用户消息关系实体
	/// </summary>
	[SugarTable("SysUserMessage", "用户消息关系实体")]
	public class UserMessageEntity : EntityCreateBase
	{
		/// <summary>
		/// 接收用户ID（关联用户表主键）
		/// </summary>
		[SugarColumn(ColumnDescription = "接收用户ID")]
		public long UserId { get; set; }

		/// <summary>
		/// 消息ID（关联消息主表）
		/// </summary>
		[SugarColumn(ColumnDescription = "消息ID")]
		public long MessageId { get; set; }

		/// <summary>
		/// 阅读状态（true-已读，false-未读）
		/// </summary>
		[SugarColumn(ColumnDescription = "阅读状态")]
		public bool IsRead { get; set; }

		/// <summary>
		/// 阅读时间（可为空，未读时无值）
		/// </summary>
		[SugarColumn(ColumnDescription = "阅读时间",IsNullable =true)]
		public DateTime? ReadTime { get; set; }

		/// <summary>
		/// 导航属性 - 关联的消息主体（OneToOne 一对一关系）
		/// </summary>
		[Navigate(NavigateType.OneToOne, nameof(MessageId))]
		public MessageEntity? Message { get; set; }
	}

}