using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using Abp.Domain.Entities.Auditing;
using WeOnlineApp.Authorization.Users;
using WeOnlineApp.Basic;
using WeOnlineApp.Configuration;
using WeOnlineApp.TrainingCamp;

namespace WeOnlineApp.Question
{
    /// <summary>
    /// 问题
    /// </summary>
    [Table("Train_QuestionInfos")]
    public class QuestionInfo : FullAuditedEntity<string, User>
    {
        public const int TitleLength = 500;
        public const int ContentLength = 1000;

        /// <summary>
        /// 课程类型
        /// </summary>
        [MaxLength(IwbConsts.PrimaryKey)]
        public string SubjectCategoryNo { get; set; }
        [ForeignKey("SubjectCategoryNo")]
        public SubjectCategoryInfo SubjectCategory { get; set; }
        /// <summary>
        /// 课程类型
        /// </summary>
        [MaxLength(IwbConsts.PrimaryKey)]
        public string CampNo { get; set; }
        [ForeignKey("CampNo")]
        public CampInfo Camp { get; set; }
        [NotMapped]
        public string CampName => Camp?.Name ?? "";
        /// <summary>
        /// 问题标题
        /// </summary>
        [MaxLength(TitleLength)]
        public string Title { get; set; }
        /// <summary>
        /// 问题内容
        /// </summary>
        [MaxLength(ContentLength)]
        public string ContentInfo { get; set; }
        /// <summary>
        /// 问题状态
        /// </summary>
        public int QuestionState { get; set; }
        /// <summary>
        /// 解答时间
        /// </summary>
        public DateTime? AnswerDateTime { get; set; }
        public string AnswerNo { get; set; }
       

        public virtual ICollection<QuestionAnswerInfo>  AnswerInfos { get; set; }
        public virtual ICollection<QuestionFavoriteInfo> Favorites { get; set; }
        /// <summary>
        /// 备注
        /// </summary>
        [MaxLength(RemarkLength)]
        public string Remark { get; set; }
        public const int RemarkLength = 500;
    }
}