@Entity @Getter @NoArgsConstructor public class Coupon { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String code; private String description; private Double discountValue; private LocalDate expirationDate; private boolean published; private boolean deleted = false; // Soft Delete public Coupon(String code, String description, Double discountValue, LocalDate expirationDate, boolean published) { this.code = sanitizeCode(code); validate(discountValue, expirationDate); this.description = description; this.discountValue = discountValue; this.expirationDate = expirationDate; this.published = published; } private String sanitizeCode(String code) { if (code == null) throw new IllegalArgumentException("Código obrigatório"); // Remove caracteres especiais e garante 6 caracteres String cleanCode = code.replaceAll("[^a-zA-Z0-9]", ""); if (cleanCode.length() != 6) { throw new IllegalArgumentException("O código deve ter exatamente 6 caracteres alfanuméricos"); } return cleanCode; } private void validate(Double discount, LocalDate expiration) { if (discount < 0.5) throw new IllegalArgumentException("Desconto mínimo é 0.5"); if (expiration.isBefore(LocalDate.now())) throw new IllegalArgumentException("Data não pode ser no passado"); } public void delete() { if (this.deleted) throw new IllegalStateException("Cupom já deletado"); this.deleted = true; } }