Refactor: Removed duplicate logic

Author: anicyne

src/pages/index.tsx

@@ -8,7 +8,7 @@ import type { FunctionComponent } from 'react';
 import React from 'react';
 import { KoliBriAbbr } from '../components/KoliBriAbbr';
 import { useDocsPreferredVersion } from '@docusaurus/theme-common';
-import { Version } from '../../shares/version';
+import { determinateVersionId } from '../shares/version';
 
 const HomepageHeader: FunctionComponent = () => (
 	<header className="p-8 grid justify-center">
@@ -26,10 +26,7 @@ const HomepageHeader: FunctionComponent = () => (
 );
 const HomepageButtons: FunctionComponent = () => {
 	const docVersion = useDocsPreferredVersion();
-	const version =
-		typeof docVersion?.preferredVersion?.name && parseFloat(docVersion?.preferredVersion?.name as Version) < 2
-			? 'v1'
-			: 'v2';
+	const version = determinateVersionId(docVersion);
 
 	return (
 		<div className="grid sm:flex gap-4 justify-center mt-4">

src/shares/version.ts

@@ -1,3 +1,8 @@
 import type VERSIONS from '../../versions.json';
 
 export type Version = (typeof VERSIONS)[number] & 'current';
+
+export function determinateVersionId(docVersion) {
+	if (!docVersion || !docVersion.preferredVersion) return null;
+	return parseFloat(docVersion?.preferredVersion?.name as Version) < 2 ? 'v1' : 'v2';
+}

src/theme/Navbar/index.tsx

@@ -9,7 +9,7 @@ import { LanguageSwitch } from '@site/src/components/LanguageSwitch';
 import Navbar from '@theme-original/Navbar';
 import ThemeSelect from './ThemeSelect';
 import { useDocsPreferredVersion } from '@docusaurus/theme-common';
-import { Version } from '../../shares/version';
+import { determinateVersionId } from '../../shares/version';
 import { translate } from '@docusaurus/Translate';
 
 export const NavbarWrapper: FunctionComponent<PropsWithChildren> = (props) => {
@@ -28,10 +28,7 @@ export const NavbarWrapper: FunctionComponent<PropsWithChildren> = (props) => {
 	// 	},
 	// };
 	const docVersion = useDocsPreferredVersion();
-	const version =
-		typeof docVersion?.preferredVersion?.name && parseFloat(docVersion?.preferredVersion?.name as Version) < 2
-			? 'v1'
-			: 'v2';
+	const version = determinateVersionId(docVersion);
 
 	return (
 		<div className="kolibri-navbar-wrapper sticky top-0 z-50 bg-white">