feat: separate module concern between client and server

src/app/(public)/s/[slug]/page.tsx

@@ -1,6 +1,6 @@
 import Link from 'next/link';
 import { redirect } from 'next/navigation';
-import { checkSlugExists } from '@/lib/helper';
+import { checkSlugExists } from '@/lib/helper-server';
 import { NEXT_PUBLIC_URL } from '@/lib/env';
 import { CopyButton } from '@/components/ui/copy-button';
 import { Button } from '@/components/ui/button';

src/app/actions.ts

@@ -3,11 +3,8 @@
 import { redirect } from 'next/navigation';
 import { ZodError } from 'zod';
 import { prisma } from '@/lib/db';
-import {
-  checkIfUrlIsValid,
-  checkSlugExists,
-  generateRandomSlug
-} from '@/lib/helper';
+import { checkIfUrlIsValid } from '@/lib/helper';
+import { checkSlugExists, generateRandomSlug } from '@/lib/helper-server';
 import { linkSchema } from './schema';
 
 export async function createLink(

src/lib/helper-server.ts

@@ -0,0 +1,22 @@
+import { randomBytes } from 'crypto';
+import { prisma } from './db';
+
+/**
+ * Returns true if slug exists in database.
+ */
+export async function checkSlugExists(slug: string): Promise<boolean> {
+  const link = await prisma.link.findUnique({
+    where: {
+      slug
+    }
+  });
+
+  return !!link;
+}
+
+/**
+ * Returns a random string for slug.
+ */
+export function generateRandomSlug(): string {
+  return randomBytes(3).toString('hex');
+}

src/lib/helper.ts

@@ -1,27 +1,8 @@
-import { randomBytes } from 'crypto';
-import { prisma } from './db';
 import { URL_WITHOUT_PROTOCOL } from './env';
 
 /**
- * Returns a random string for slug.
+ * Returns true if the url is not from the same domain.
  */
-export function generateRandomSlug(): string {
-  return randomBytes(3).toString('hex');
-}
-
-/**
- * Returns true if slug exists in database.
- */
-export async function checkSlugExists(slug: string): Promise<boolean> {
-  const link = await prisma.link.findUnique({
-    where: {
-      slug
-    }
-  });
-
-  return !!link;
-}
-
 export function checkIfUrlIsValid(url: string): boolean {
   return !url.includes(URL_WITHOUT_PROTOCOL);
 }