using System;

namespace FrameworkDAL.DTO.Taxonomy
{
    /// <summary>
    /// DTO for MTOPIC — leaf/hierarchical level of the taxonomy.
    /// TopicDifficulty : 0 Easy | 1 Medium | 2 Hard (value-aligned with TMS's MQUESTIONBANK.QBANKDIFFICULTY)
    /// SkillId : loose reference to MSKILL.SkillId, -1 = unassigned (not a hard FK — see migration comment)
    /// </summary>
    public class TopicDTO
    {
        public int TopicId { get; set; }
        public int SubjectId { get; set; }
        public int ParentTopicId { get; set; } = -1;
        public string TopicCode { get; set; } = string.Empty;
        public string TopicName { get; set; } = string.Empty;
        public byte TopicDifficulty { get; set; } = 1;
        public int SkillId { get; set; } = -1;
        public short EstimatedMinutes { get; set; }
        public byte IsActive { get; set; } = 1;

        // Standard fields
        public short Version { get; set; }
        public byte Status { get; set; }
        public short SortOrder { get; set; }
        public byte SourceType { get; set; }
        public int TenantId { get; set; }
        public int CreatedById { get; set; }
        public DateTime CreatedOn { get; set; }
        public int ModifiedById { get; set; }
        public DateTime ModifiedOn { get; set; }
    }
}