using System.ComponentModel.DataAnnotations; using System.ComponentModel.DataAnnotations.Schema; namespace RacePlannerApi.Models; public class Payment { [Key] public Guid Id { get; set; } = Guid.NewGuid(); [Required] public Guid RegistrationId { get; set; } [ForeignKey("RegistrationId")] public Registration Registration { get; set; } = null!; [Required] public decimal Amount { get; set; } [Required] public PaymentMethod Method { get; set; } [MaxLength(100)] public string? TransactionId { get; set; } [MaxLength(500)] public string? Notes { get; set; } public DateTime PaymentDate { get; set; } = DateTime.UtcNow; public DateTime CreatedAt { get; set; } = DateTime.UtcNow; } public enum PaymentMethod { Cash, Online, Transfer }