using FreeSql.DataAnnotations;
using F9WebAiTest.Domain.Common;

namespace F9WebAiTest.Domain.Entities.Notice;

/// <summary>消息接收人（投递时生成，记录阅读状态与推送结果：在线推送成功 / 离线待拉取）</summary>
[Table(Name = "NotificationReceivers")]
[Index("IX_NotificationReceivers_MessageId_UserId", "MessageId, UserId", IsUnique = true)]
[Index("IX_NotificationReceivers_UserId_ReadStatus", "UserId, ReadStatus")]
public class NotificationReceiver : BaseEntity
{
    public long MessageId { get; set; }               // 消息ID
    public long UserId { get; set; }                  // 接收人用户ID
    public NotificationReadStatus ReadStatus { get; set; } = NotificationReadStatus.Unread; // 阅读状态
    public DateTime? ReadTime { get; set; }           // 阅读时间
    public bool IsOffline { get; set; }               // 推送时是否离线
    public NotificationSendStatus SendStatus { get; set; } = NotificationSendStatus.NotSent; // 推送状态
    public DateTime? SendTime { get; set; }           // 推送时间
    public string ErrorMsg { get; set; } = "";        // 错误信息
}