feat(i18n): implement language switching and localization support

- Remove i18next configuration and dependencies
- Add language switcher component
- Integrate language change functionality with cookies
- Update translations for English and Persian
- Modify layout and page components to support dynamic language rendering
- Refactor Tailwind CSS configuration for custom colors

next.config.ts

@@ -1,7 +1,5 @@
-import type { NextConfig } from "next";
+import type { NextConfig } from 'next';
 
-const nextConfig: NextConfig = {
+const nextConfig: NextConfig = {};
-  /* config options here */
-};
 
 export default nextConfig;

package-lock.json

@@ -8,13 +8,9 @@
       "name": "pasargad_bricks",
       "version": "0.1.0",
       "dependencies": {
-        "i18next": "^25.2.1",
-        "i18next-browser-languagedetector": "^8.1.0",
-        "i18next-http-backend": "^3.0.2",
         "next": "15.3.3",
         "react": "^19.0.0",
-        "react-dom": "^19.0.0",
+        "react-dom": "^19.0.0"
-        "react-i18next": "^15.5.2"
       },
       "devDependencies": {
         "@eslint/eslintrc": "^3",
@@ -57,14 +53,6 @@
         "node": ">=6.0.0"
       }
     },
-    "node_modules/@babel/runtime": {
-      "version": "7.27.4",
-      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.27.4.tgz",
-      "integrity": "sha512-t3yaEOuGu9NlIZ+hIeGbBjFtZT7j2cb2tg0fuaJKeGotchRjjLfrBA9Kwf8quhpP1EUuxModQg04q/mBwyg8uA==",
-      "engines": {
-        "node": ">=6.9.0"
-      }
-    },
     "node_modules/@emnapi/core": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.4.3.tgz",
@@ -2214,14 +2202,6 @@
       "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
       "dev": true
     },
-    "node_modules/cross-fetch": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/cross-fetch/-/cross-fetch-4.0.0.tgz",
-      "integrity": "sha512-e4a5N8lVvuLgAWgnCrLr2PP0YyDOTHa9H/Rj54dirp61qXnNq46m82bRhNqIA5VccJtWBvPTFRV3TtvHUKPB1g==",
-      "dependencies": {
-        "node-fetch": "^2.6.12"
-      }
-    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3430,60 +3410,6 @@
         "node": ">= 0.4"
       }
     },
-    "node_modules/html-parse-stringify": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/html-parse-stringify/-/html-parse-stringify-3.0.1.tgz",
-      "integrity": "sha512-KknJ50kTInJ7qIScF3jeaFRpMpE8/lfiTdzf/twXyPBLAGrLRTmkz3AdTnKeh40X8k9L2fdYwEp/42WGXIRGcg==",
-      "dependencies": {
-        "void-elements": "3.1.0"
-      }
-    },
-    "node_modules/i18next": {
-      "version": "25.2.1",
-      "resolved": "https://registry.npmjs.org/i18next/-/i18next-25.2.1.tgz",
-      "integrity": "sha512-+UoXK5wh+VlE1Zy5p6MjcvctHXAhRwQKCxiJD8noKZzIXmnAX8gdHX5fLPA3MEVxEN4vbZkQFy8N0LyD9tUqPw==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://locize.com"
-        },
-        {
-          "type": "individual",
-          "url": "https://locize.com/i18next.html"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.i18next.com/how-to/faq#i18next-is-awesome.-how-can-i-support-the-project"
-        }
-      ],
-      "dependencies": {
-        "@babel/runtime": "^7.27.1"
-      },
-      "peerDependencies": {
-        "typescript": "^5"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
-    "node_modules/i18next-browser-languagedetector": {
-      "version": "8.1.0",
-      "resolved": "https://registry.npmjs.org/i18next-browser-languagedetector/-/i18next-browser-languagedetector-8.1.0.tgz",
-      "integrity": "sha512-mHZxNx1Lq09xt5kCauZ/4bsXOEA2pfpwSoU11/QTJB+pD94iONFwp+ohqi///PwiFvjFOxe1akYCdHyFo1ng5Q==",
-      "dependencies": {
-        "@babel/runtime": "^7.23.2"
-      }
-    },
-    "node_modules/i18next-http-backend": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/i18next-http-backend/-/i18next-http-backend-3.0.2.tgz",
-      "integrity": "sha512-PdlvPnvIp4E1sYi46Ik4tBYh/v/NbYfFFgTjkwFl0is8A18s7/bx9aXqsrOax9WUbeNS6mD2oix7Z0yGGf6m5g==",
-      "dependencies": {
-        "cross-fetch": "4.0.0"
-      }
-    },
     "node_modules/ignore": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.2.tgz",
@@ -4536,25 +4462,6 @@
         "node": "^10 || ^12 || >=14"
       }
     },
-    "node_modules/node-fetch": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
-      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
-      "dependencies": {
-        "whatwg-url": "^5.0.0"
-      },
-      "engines": {
-        "node": "4.x || >=6.0.0"
-      },
-      "peerDependencies": {
-        "encoding": "^0.1.0"
-      },
-      "peerDependenciesMeta": {
-        "encoding": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
@@ -4919,31 +4826,6 @@
         "react": "^19.1.0"
       }
     },
-    "node_modules/react-i18next": {
-      "version": "15.5.2",
-      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.5.2.tgz",
-      "integrity": "sha512-ePODyXgmZQAOYTbZXQn5rRsSBu3Gszo69jxW6aKmlSgxKAI1fOhDwSu6bT4EKHciWPKQ7v7lPrjeiadR6Gi+1A==",
-      "dependencies": {
-        "@babel/runtime": "^7.25.0",
-        "html-parse-stringify": "^3.0.1"
-      },
-      "peerDependencies": {
-        "i18next": ">= 23.2.3",
-        "react": ">= 16.8.0",
-        "typescript": "^5"
-      },
-      "peerDependenciesMeta": {
-        "react-dom": {
-          "optional": true
-        },
-        "react-native": {
-          "optional": true
-        },
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
@@ -5631,11 +5513,6 @@
         "node": ">=8.0"
       }
     },
-    "node_modules/tr46": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
-      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw=="
-    },
     "node_modules/ts-api-utils": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.1.0.tgz",
@@ -5755,7 +5632,7 @@
       "version": "5.8.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
       "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
-      "devOptional": true,
+      "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -5829,28 +5706,6 @@
         "punycode": "^2.1.0"
       }
     },
-    "node_modules/void-elements": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
-      "integrity": "sha512-Dhxzh5HZuiHQhbvTW9AMetFfBHDMYpo23Uo9btPXgdYP+3T5S+p+jgNy7spra+veYhBP2dCSgxR/i2Y02h5/6w==",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/webidl-conversions": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
-      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ=="
-    },
-    "node_modules/whatwg-url": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
-      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
-      "dependencies": {
-        "tr46": "~0.0.3",
-        "webidl-conversions": "^3.0.0"
-      }
-    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",

package.json

@@ -9,13 +9,9 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "i18next": "^25.2.1",
-    "i18next-browser-languagedetector": "^8.1.0",
-    "i18next-http-backend": "^3.0.2",
     "next": "15.3.3",
     "react": "^19.0.0",
-    "react-dom": "^19.0.0",
+    "react-dom": "^19.0.0"
-    "react-i18next": "^15.5.2"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",

src/app/aaa/page.tsx

@@ -10,7 +10,7 @@ export default async function Home() {
   const data = await getData();
 
   return (
-    <main className="flex min-h-screen flex-col items-center justify-between p-24 text-gray-300">
+    <main className="flex min-h-screen flex-col items-center justify-between p-24 text-bg-primary">
       ssss
     </main>
   );

src/app/globals.css

@@ -59,7 +59,7 @@
 }
 
 :root {
-  --primary: #6366F1;
+  --primary: #FA003F;
   --secondary: #A78BFA;
   --textColorLight: #FFFFFF;
   --textColorGray: #222222;

src/app/layout.tsx

@@ -1,23 +1,22 @@
 import type { Metadata } from 'next';
 import './globals.css';
-import { I18nextProvider } from 'react-i18next';
+import { cookies } from 'next/headers';
-import i18n from '../config/i18n';
 
 export const metadata: Metadata = {
   title: 'Create Next App',
   description: 'Generated by create next app',
 };
 
-export default function RootLayout({
+export default async function RootLayout({
   children,
-}: {
+}: Readonly<{
   children: React.ReactNode;
-}) {
+}>) {
+  const locale = (await cookies()).get('lang')?.value || 'en';
+
   return (
-    <html lang="en">
+    <html lang={locale} dir={locale === 'fa' ? 'rtl' : 'ltr'}>
-      <I18nextProvider i18n={i18n}>
+      <body>{children}</body>
-        <body>{children}</body>
-      </I18nextProvider>
     </html>
   );
 }

src/app/page.tsx

@@ -1,4 +1,6 @@
 // ... existing imports ...
+import ChangeLangButton from '@/components/layout/languageSwitcher';
+import { changeLanguage, t } from '@/locales/translates';
 
 async function getData() {
   // Simulate a delay to show server-side data fetching
@@ -6,12 +8,18 @@ async function getData() {
   return { message: 'This data was fetched on the server!' };
 }
 
+const change = () => {
+  changeLanguage('fa');
+};
+
 export default async function Home() {
   const data = await getData();
 
   return (
     <main className="flex min-h-screen flex-col items-center justify-between p-24 text-gray-300">
-      ssss
+      <span>{t('pages_home_title') as string}</span>
+
+      <ChangeLangButton />
     </main>
   );
 }

src/assets/constants/routeFactory/index.ts

@@ -1,13 +1,12 @@
-import { useTranslation } from 'react-i18next';
+import { t, translates } from '@/locales/translates';
-const { t } = useTranslation('routes');
 
 export default {
   home: {
-    title: t('home'),
+    title: t('pages_home_title'),
     route: () => '/',
   },
   about: {
-    title: t('about'),
+    title: t('pages_about_title'),
     route: () => '/about',
   },
 };

src/components/Button.tsx

@@ -1,3 +1,4 @@
+'use client';
 import React, { ButtonHTMLAttributes, ReactNode } from 'react';
 
 interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {

src/components/layout/languageSwitcher.tsx

@@ -0,0 +1,17 @@
+'use client';
+import { changeLanguage, TLocales } from '@/locales/translates';
+import Button from '../Button';
+
+export default function ChangeLangButton() {
+  const changeLang = (lang: TLocales) => {
+    changeLanguage(lang);
+    window.location.reload(); // Reload to get new SSR content
+  };
+
+  return (
+    <>
+      <Button onClick={() => changeLang('en')}>English</Button>
+      <Button onClick={() => changeLang('fa')}>فارسی</Button>
+    </>
+  );
+}

src/config/i18n.ts

@@ -1,19 +0,0 @@
-import i18n from 'i18next';
-import { initReactI18next } from 'react-i18next';
-import Backend from 'i18next-http-backend';
-
-i18n
-  .use(Backend)
-  .use(initReactI18next)
-  .init({
-    fallbackLng: 'en',
-    debug: false,
-    interpolation: {
-      escapeValue: false,
-    },
-    backend: {
-      loadPath: '/locales/{{lng}}/{{ns}}.json',
-    }
-  });
-
-export default i18n;

src/locales/en.ts

@@ -0,0 +1,10 @@
+const en = {
+  pages_home_title: 'Home',
+  pages_home_description: 'Welcome to the home page',
+  pages_about_title: 'About Us',
+  pages_about_description: 'Learn more about us on this page',
+  pages_contact_title: 'Contact Us',
+  pages_contact_description: 'Get in touch with us through this page',
+};
+
+export default en;

src/locales/fa.ts

@@ -0,0 +1,12 @@
+import { Translates } from './translates';
+
+const fa = {
+  pages_home_title: 'صفحه‌ی اصلی',
+  pages_home_description: 'Welcome to the home page',
+  pages_about_title: 'About Us',
+  pages_about_description: 'Learn more about us on this page',
+  pages_contact_title: 'Contact Us',
+  pages_contact_description: 'Get in touch with us through this page',
+} as Translates;
+
+export default fa;

src/locales/translates.ts

@@ -0,0 +1,57 @@
+import en from './en';
+import fa from './fa';
+
+// Universal getCookie function
+export function getCookie(name: string): string | undefined {
+  if (typeof window !== 'undefined') {
+    // Client-side
+    const match = document.cookie.match(
+      new RegExp('(^| )' + name + '=([^;]+)'),
+    );
+    return match ? decodeURIComponent(match[2]) : undefined;
+  } else {
+    // Server-side (Next.js App Router)
+    try {
+      // Dynamically import to avoid errors in client bundle
+      const { cookies } = require('next/headers');
+      return cookies().get(name)?.value;
+    } catch {
+      return undefined;
+    }
+  }
+}
+
+// Universal setCookie function to change language
+export function changeLanguage(lang: TLocales, days = 365) {
+  if (typeof window !== 'undefined') {
+    // Client-side
+    const expires = new Date(Date.now() + days * 864e5).toUTCString();
+    document.cookie = `lang=${encodeURIComponent(lang)}; expires=${expires}; path=/`;
+  } else {
+    // Server-side (Next.js App Router)
+    try {
+      const { cookies } = require('next/headers');
+      cookies().set('lang', lang, { path: '/', maxAge: days * 24 * 60 * 60 });
+    } catch {
+      // No-op on server if not available
+    }
+  }
+}
+
+export const locales = {
+  en: en as Translates,
+  fa,
+} as Record<TLocales, Translates>;
+
+export const translates = (key: keyof Translates): string | (() => string) => {
+  const lang = (getCookie('lang') || 'en') as TLocales;
+  return locales[lang][key] || locales.en[key] || key;
+};
+
+export const t = (key: keyof Translates) => translates(key);
+
+export type TLocales = 'en' | 'fa';
+
+export type Translates = {
+  [K in keyof typeof en]: string | (() => string);
+};

tailwind.config.ts

@@ -9,51 +9,51 @@ const config: Config = {
   ],
   theme: {
     // Move your custom colors directly here to override default Tailwind colors
-    extend: {
+    colors: {
-      colors: {
+      // Custom colors
-        // Custom colors
+      primary: {
-        primary: {
+        light: '#6366F1',
-          light: '#6366F1',
+        DEFAULT: '#6366F1',
-          DEFAULT: '#6366F1',
+        dark: '#FA003F',
-          dark: '#FA003F',
+      },
+      secondary: {
+        light: '#A78BFA',
+        DEFAULT: '#8B5CF6',
+        dark: '#7C3AED',
+      },
+      textColorLight: {
+        light: '#FFFFFF',
+        DEFAULT: '#FFFFFF',
+        dark: '#FA003F',
+      },
+      textColorGray: {
+        light: '#222222',
+        DEFAULT: '#222222',
+        dark: '#FA003F',
+      },
+      bgPrimary: {
+        light: '#FFFFFF',
+        DEFAULT: '#FFFFFF',
+        dark: '#FA003F',
+      },
+      gray: {
+        light: {
+          100: '#EBEBEB',
+          200: '#F5F5F5',
+          300: '#81848A',
+          400: '#777',
+          500: '#222',
         },
-        secondary: {
+        dark: {
-          light: '#A78BFA',
+          100: '#EBEBEB',
-          DEFAULT: '#8B5CF6',
+          200: '#F5F5F5',
-          dark: '#7C3AED',
+          300: '#81848A',
-        },
+          400: '#777',
-        textColorLight: {
+          500: '#222',
-          light: '#FFFFFF',
-          DEFAULT: '#FFFFFF',
-          dark: '#FA003F',
-        },
-        textColorGray: {
-          light: '#222222',
-          DEFAULT: '#222222',
-          dark: '#FA003F',
-        },
-        bgPrimary: {
-          light: '#FFFFFF',
-          DEFAULT: '#FFFFFF',
-          dark: '#FA003F',
-        },
-        gray: {
-          light: {
-            100: '#EBEBEB',
-            200: '#F5F5F5',
-            300: '#81848A',
-            400: '#777',
-            500: '#222',
-          },
-          dark: {
-            100: '#EBEBEB',
-            200: '#F5F5F5',
-            300: '#81848A',
-            400: '#777',
-            500: '#222',
-          },
         },
       },
+    },
+    extend: {
       backgroundImage: {
         'gradient-radial': 'radial-gradient(var(--tw-gradient-stops))',
         'gradient-conic':