namespace OrpaonVision.Core.Domain;

/// <summary>
/// 支持软删除的实体基类。
/// </summary>
public abstract class SoftDeleteEntityBase : AuditableEntityBase
{
    private bool _isDeleted;

    /// <summary>
    /// 是否已删除。
    /// </summary>
    public bool IsDeleted
    {
        get => _isDeleted;
        set
        {
            if (_isDeleted != value)
            {
                _isDeleted = value;
                if (value)
                {
                    MarkAsUpdated("System-SoftDelete");
                }
            }
        }
    }

    /// <summary>
    /// 删除时间（UTC）。
    /// </summary>
    public DateTime? DeletedAt { get; private set; }

    /// <summary>
    /// 删除者。
    /// </summary>
    public string? DeletedBy { get; private set; }

    /// <summary>
    /// 删除原因。
    /// </summary>
    public string? DeleteReason { get; private set; }

    /// <summary>
    /// 标记为已删除。
    /// </summary>
    /// <param name="deletedBy">删除者。</param>
    /// <param name="deleteReason">删除原因。</param>
    public virtual void MarkAsDeleted(string? deletedBy = null, string? deleteReason = null)
    {
        if (!IsDeleted)
        {
            IsDeleted = true;
            DeletedAt = DateTime.UtcNow;
            DeletedBy = deletedBy;
            DeleteReason = deleteReason;
            MarkAsUpdated(deletedBy);
        }
    }

    /// <summary>
    /// 恢复删除状态。
    /// </summary>
    /// <param name="restoredBy">恢复者。</param>
    public virtual void Restore(string? restoredBy = null)
    {
        if (IsDeleted)
        {
            IsDeleted = false;
            DeletedAt = null;
            DeletedBy = null;
            DeleteReason = null;
            MarkAsUpdated(restoredBy);
        }
    }
}