stashing code

packages/logic/domains/paymentinfo/data/entities.ts

@@ -0,0 +1,92 @@
+import { z } from "zod";
+
+export enum PaymentMethod {
+  Card = "card",
+  // INFO: for other future payment methods
+}
+
+function isValidLuhn(cardNumber: string): boolean {
+  const digits = cardNumber.replace(/\D/g, "");
+  let sum = 0;
+  let isEven = false;
+
+  for (let i = digits.length - 1; i >= 0; i--) {
+    let digit = parseInt(digits[i], 10);
+
+    if (isEven) {
+      digit *= 2;
+      if (digit > 9) {
+        digit -= 9;
+      }
+    }
+
+    sum += digit;
+    isEven = !isEven;
+  }
+
+  return sum % 10 === 0;
+}
+
+function isValidExpiry(expiryDate: string): boolean {
+  const match = expiryDate.match(/^(0[1-9]|1[0-2])\/(\d{2})$/);
+  if (!match) return false;
+
+  const month = parseInt(match[1], 10);
+  const year = parseInt(match[2], 10);
+
+  const currentDate = new Date();
+  const currentYear = currentDate.getFullYear() % 100; // Get last 2 digits of year
+  const maxYear = currentYear + 20;
+
+  // Check if year is within valid range
+  if (year < currentYear || year > maxYear) return false;
+
+  // If it's the current year, check if the month is valid
+  if (year === currentYear) {
+    const currentMonth = currentDate.getMonth() + 1; // getMonth() returns 0-11
+    if (month < currentMonth) return false;
+  }
+
+  return true;
+}
+
+export const cardInfoModel = z.object({
+  cardholderName: z.string().min(1).max(128),
+  cardNumber: z
+    .string()
+    .min(1)
+    .max(20)
+    .regex(/^\d+$/, "Card number must be numeric")
+    .refine((val) => isValidLuhn(val), {
+      message: "Invalid card number",
+    }),
+  expiry: z
+    .string()
+    .regex(/^(0[1-9]|1[0-2])\/\d{2}$/, "Expiry must be in mm/yy format")
+    .refine((val) => isValidExpiry(val), {
+      message: "Invalid expiry date",
+    }),
+  cvv: z
+    .string()
+    .min(3)
+    .max(4)
+    .regex(/^\d{3,4}$/, "CVV must be 3-4 digits"),
+});
+export type CardInfo = z.infer<typeof cardInfoModel>;
+
+export const paymentDetailsPayloadModel = z.object({
+  method: z.enum([PaymentMethod.Card]),
+  cardDetails: cardInfoModel,
+  flightTicketInfoId: z.number().int(),
+});
+export type PaymentDetailsPayload = z.infer<typeof paymentDetailsPayloadModel>;
+
+export const paymentDetailsModel = cardInfoModel.merge(
+  z.object({
+    id: z.number().int(),
+    flightTicketInfoId: z.number().int(),
+    createdAt: z.string().datetime(),
+    updatedAt: z.string().datetime(),
+  }),
+);
+export type PaymentDetails = z.infer<typeof paymentDetailsModel>;