refactor: centralize external links configuration

- Create external-links.ts with all external URLs in one place
- Add locale-aware functions for wiki and CFP links
- Update nav.tsx and landing-page.tsx to use centralized config
- Remove duplicate URL definitions across components

src/components/landing-page.tsx

@@ -7,6 +7,7 @@ import dynamic from 'next/dynamic';
 import { jgs7, oxanium } from '@/fonts';
 import { Lang } from '@/i18n/locales';
 import { Translations } from "@/i18n/translations";
+import { getWikiUrl, getCfpScheduleUrl, getEmailUrl } from '@/lib/external-links';
 import { cn } from "@/lib/utils";
 import Link from 'next/link';
 import { ReactElement, useEffect, useRef } from "react";
@@ -174,7 +175,7 @@ export default function LandingPage(
 
   return (
     <div>
-      <MainpageNav t={t} />
+      <MainpageNav t={t} currentLocale={currentLocale} />
       <main className="flex flex-col min-h-screen grid-gap-10 gap-10 pb-12">
 
         <section id="hero" className="h-screen relative overflow-hidden dark:bg-black light:bg-white ">
@@ -190,7 +191,7 @@ export default function LandingPage(
               <div className='flex flex-col space-y-4 items-center justify-center m-auto'>
                 <div className='flex flex-row gap-4'>
                   <Button className={`${oxanium.className} text-xl uppercase cursor-pointer`}>
-                    <Link href={`https://cfp.cebula.camp/camp-2025/locale/set?locale=${currentLocale}&next=/camp-2025/schedule/`} className="flex items-center gap-2">
+                    <Link href={getCfpScheduleUrl(currentLocale)} className="flex items-center gap-2">
                       <svg
                         className="w-5 h-5"
                         fill="none"
@@ -208,7 +209,7 @@ export default function LandingPage(
                     </Link>
                   </Button>
                   <Button className={`${oxanium.className} text-xl uppercase cursor-pointer`}>
-                    <Link href="https://wiki.cebula.camp/pl/home" target="_blank" rel="noopener noreferrer" className="flex items-center gap-2">
+                    <Link href={getWikiUrl(currentLocale)} target="_blank" rel="noopener noreferrer" className="flex items-center gap-2">
                       <svg
                         className="w-5 h-5"
                         fill="none"
@@ -291,7 +292,7 @@ export default function LandingPage(
                     </p>
                   </div>
                   <Button className={`${oxanium.className} text-xl uppercase cursor-pointer`} size="lg">
-                    <Link href={`https://cfp.cebula.camp/camp-2025/locale/set?locale=${currentLocale}&next=/camp-2025/schedule/`}>
+                    <Link href={getCfpScheduleUrl(currentLocale)}>
                       {t.contribute.agenda.viewButton}
                     </Link>
                   </Button>
@@ -312,7 +313,7 @@ export default function LandingPage(
             </section>
             <section>
               <Subheading>{t.faq.accesibility.title}</Subheading>
-              <TextWrapper><p>{t.faq.accesibility.description} <a href="mailto:orga@cebula.camp">{t.contact.email}</a></p></TextWrapper>
+              <TextWrapper><p>{t.faq.accesibility.description} <a href={getEmailUrl()}>{t.contact.email}</a></p></TextWrapper>
             </section>
             <section>
               <Subheading>{t.faq.food.title}</Subheading>
@@ -329,7 +330,7 @@ export default function LandingPage(
               <TextWrapper><p>
                 <a className='hover:text-primary' href={`/${currentLocale}/pages/privacy`}>📜 {t.faq.documents.privacyPolicy}</a></p></TextWrapper>
               <TextWrapper><p>
-                <a className='hover:text-primary' href="https://wiki.cebula.camp/pl/home" target="_blank" rel="noopener noreferrer">📚 {t.faq.documents.wiki}</a></p></TextWrapper>
+                <a className='hover:text-primary' href={getWikiUrl(currentLocale)} target="_blank" rel="noopener noreferrer">📚 {t.faq.documents.wiki}</a></p></TextWrapper>
             </section>
           </>
         </NewSection>
@@ -342,7 +343,7 @@ export default function LandingPage(
             <section>
               <TextWrapper><p>{t.contact.details.line1}</p></TextWrapper>
               <br />
-              <TextWrapper><p>📬 <a href={`mailto:${t.contact.email}`}>{t.contact.email}</a> {t.contact.details.line2}</p></TextWrapper>
+              <TextWrapper><p>📬 <a href={getEmailUrl()}>{t.contact.email}</a> {t.contact.details.line2}</p></TextWrapper>
               <br />
               <TextWrapper><p>{t.contact.details.line3}</p></TextWrapper>
               <br />

src/components/nav.tsx

@@ -1,5 +1,7 @@
 "use client"
 import { type translations } from "@/i18n/translations"
+import { Lang } from '@/i18n/locales'
+import { getWikiUrl } from '@/lib/external-links'
 import { cn } from "@/lib/utils"
 import ScrollSpy from 'react-scrollspy-navigation'
 import { MobileNav } from "./mobile-nav"
@@ -15,15 +17,16 @@ const linksOrder: Array<keyof (typeof translations.pl)["nav"]> = [
   'contact'
 ]
 
-const externalLinks: Record<string, string> = {
-  'wiki': 'https://wiki.cebula.camp/pl/home'
-}
-
 export function MainpageNav({
   t,
+  currentLocale = 'pl' as Lang
 }: {
   t: typeof translations.pl
+  currentLocale?: Lang
 }) {
+  const externalLinks: Record<string, string> = {
+    'wiki': getWikiUrl(currentLocale)
+  }
 
   return (
     <NavContainer title={t.nav.title}>

src/lib/external-links.ts

@@ -0,0 +1,35 @@
+import { Lang } from '@/i18n/locales'
+
+export const EXTERNAL_URLS = {
+  email: 'orga@cebula.camp',
+} as const
+
+export function getWikiUrl(locale: Lang): string {
+  return `https://wiki.cebula.camp/${locale}/home`
+}
+
+export function getCfpScheduleUrl(locale: Lang): string {
+  return `https://cfp.cebula.camp/camp-2025/locale/set?locale=${locale}&next=/camp-2025/schedule/`
+}
+
+export function getCfpUrl(locale: Lang): string {
+  return `https://cfp.cebula.camp/camp-2025/cfp`
+}
+
+export function getCfpArtUrl(locale: Lang): string {
+  return `https://cfp.cebula.camp/camp-2025-art/cfp`
+}
+
+export function getEmailUrl(): string {
+  return `mailto:${EXTERNAL_URLS.email}`
+}
+
+export function getExternalLinks(locale: Lang) {
+  return {
+    wiki: getWikiUrl(locale),
+    cfpSchedule: getCfpScheduleUrl(locale),
+    cfp: getCfpUrl(locale),
+    cfpArt: getCfpArtUrl(locale),
+    email: getEmailUrl(),
+  }
+}