fix: mask differences in auth duration (#946)

lib/constants.ts

@@ -1,3 +1,5 @@
+import { generateDummyPassword } from './utils';
+
 export const isProductionEnvironment = process.env.NODE_ENV === 'production';
 
 export const isTestEnvironment = Boolean(
@@ -5,3 +7,5 @@ export const isTestEnvironment = Boolean(
     process.env.PLAYWRIGHT ||
     process.env.CI_PLAYWRIGHT,
 );
+
+export const DUMMY_PASSWORD = generateDummyPassword();

lib/utils.ts

@@ -1,16 +1,15 @@
-import type {
-  CoreAssistantMessage,
-  CoreToolMessage,
-  Message,
-  TextStreamPart,
-  ToolInvocation,
-  ToolSet,
-  UIMessage,
+import {
+  generateId,
+  type CoreAssistantMessage,
+  type CoreToolMessage,
+  type Message,
+  type UIMessage,
 } from 'ai';
 import { type ClassValue, clsx } from 'clsx';
 import { twMerge } from 'tailwind-merge';
 
-import type { DBMessage, Document } from '@/lib/db/schema';
+import type { Document } from '@/lib/db/schema';
+import { genSaltSync, hashSync } from 'bcrypt-ts';
 
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));
@@ -163,3 +162,12 @@ export function getTrailingMessageId({
 
   return trailingMessage.id;
 }
+
+export function generateDummyPassword() {
+  const password = generateId(12);
+
+  const salt = genSaltSync(10);
+  const hash = hashSync(password, salt);
+
+  return hash;
+}