feat: mask date of birth

server/routers/user/query.ts

@@ -331,6 +331,9 @@ export const userQueryRouter = router({
         user.address.zipCode = verifiedData.data.address?.zipCode
           ? maskValue.text(verifiedData.data.address.zipCode)
           : ""
+
+        user.dateOfBirth = maskValue.all(user.dateOfBirth)
+
         user.email = maskValue.email(user.email)
 
         user.phoneNumber = user.phoneNumber

utils/maskValue.ts

@@ -1,7 +1,11 @@
+function maskAll(str: string) {
+  return "*".repeat(str.length)
+}
+
 function maskAllButFirstChar(str: string) {
   const first = str[0]
   const rest = str.substring(1)
-  const restMasked = "*".repeat(rest.length)
+  const restMasked = maskAll(rest)
 
   return `${first}${restMasked}`
 }
@@ -9,7 +13,7 @@ function maskAllButFirstChar(str: string) {
 function maskAllButLastTwoChar(str: string) {
   const lastTwo = str.slice(-2)
   const rest = str.substring(0, str.length - 2)
-  const restMasked = "*".repeat(rest.length)
+  const restMasked = maskAll(rest)
 
   return `${restMasked}${lastTwo}`
 }
@@ -42,3 +46,7 @@ export function phone(str: string) {
 export function text(str: string) {
   return maskAllButFirstChar(str)
 }
+
+export function all(str: string) {
+  return maskAll(str)
+}

utils/maskvalue.test.ts

@@ -1,6 +1,6 @@
 import { describe, expect, test } from "@jest/globals"
 
-import { email, phone, text } from "./maskValue"
+import { all, email, phone, text } from "./maskValue"
 
 describe("Mask value", () => {
   test("masks e-mails properly", () => {
@@ -19,4 +19,9 @@ describe("Mask value", () => {
     expect(text("test")).toBe("t***")
     expect(text("test.with.dot")).toBe("t************")
   })
+
+  test("masks whole string properly", () => {
+    expect(all("test")).toBe("****")
+    expect(all("123jknasd@iajsd.c")).toBe("*****************")
+  })
 })