Feat : Gitbook

gitbook/app/[lang]/[...slug]/page.js

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+import DocsLayout from "@/components/DocsLayout";
+import DocsContent from "@/components/DocsContent";
+import { extractHeadings } from "@/utils/markdown";
+import { loadContent, getAllSlugs } from "@/lib/content";
+import { LANG_CODES, isValidLang, DEFAULT_LANG } from "@/constants/languages";
+import { notFound } from "next/navigation";
+
+export const dynamicParams = false;
+
+export async function generateStaticParams() {
+  // Build params for every (lang × slug) combination based on default language slugs.
+  const slugs = getAllSlugs(DEFAULT_LANG);
+  const params = [];
+  for (const lang of LANG_CODES) {
+    for (const slug of slugs) {
+      params.push({ lang, slug });
+    }
+  }
+  return params;
+}
+
+export default async function DocPage({ params }) {
+  const { lang, slug } = await params;
+  if (!isValidLang(lang)) notFound();
+
+  const content = loadContent(lang, slug);
+  if (!content) notFound();
+
+  const headings = extractHeadings(content);
+
+  return (
+    <DocsLayout headings={headings} lang={lang}>
+      <DocsContent content={content} />
+    </DocsLayout>
+  );
+}