Core_Be/Models/Staff.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Fitness_core_BE.Models
{
    public class Staff
    {
        [Key]
        public Guid StaffId { get; set; }

        public Guid FKUserId { get; set; }
        [ForeignKey("FKUserId")]
        public virtual User User { get; set; }

        public Guid FKClientId { get; set; }
        [ForeignKey("FKClientId")]
        public virtual Client Client { get; set; }

        // Null = no role assigned yet = zero permissions (see PermissionService).
        public Guid? FKGymRoleId { get; set; }
        [ForeignKey("FKGymRoleId")]
        public virtual GymRole? GymRole { get; set; }

        public string? StaffPosition { get; set; }
        public string? Department { get; set; }
        public DateTime HireDate { get; set; } = DateTime.UtcNow;
        public bool IsActive { get; set; } = true;
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    }
}