Remove content from MarkdownSection, use rawContent directly in pageContent

Co-authored-by: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>

Author: Copilot

app/[docs_id]/page.tsx

@@ -45,10 +45,9 @@ export async function generateMetadata({
   // 先頭の 第n章: を除いたものをタイトルとする
   const title = splitMdContent[0]?.title?.split(" ").slice(1).join(" ");
 
-  const description = splitMdContent[0].content;
+  const description = splitMdContent[0].rawContent;
 
-  const lang_id = docs_id.split("-")[0];
-  const chapter = docs_id.split("-")[1];
+  const [lang_id, chapter] = docs_id.split("-");
   const pagesList = await getPagesList();
   const langName = pagesList.find((l) => l.id === lang_id)?.name ?? lang_id;
 
@@ -64,8 +63,8 @@ export default async function Page({
   params: Promise<{ docs_id: string }>;
 }) {
   const { docs_id } = await params;
-  const lang_id = docs_id.split("-")[0];
-  const page_num = parseInt(docs_id.split("-")[1]);
+  const [lang_id, page_num_str] = docs_id.split("-");
+  const page_num = parseInt(page_num_str);
   const pagesList = await getPagesList();
   if (
     !pagesList

app/[docs_id]/pageContent.tsx

@@ -3,7 +3,7 @@
 import { Fragment, useEffect, useRef, useState } from "react";
 import { MarkdownSection } from "./splitMarkdown";
 import { ChatForm } from "./chatForm";
-import { Heading, StyledMarkdown } from "./markdown";
+import { StyledMarkdown } from "./markdown";
 import { useChatHistoryContext } from "./chatHistory";
 import { useSidebarMdContext } from "../sidebar";
 import clsx from "clsx";
@@ -99,8 +99,7 @@ export function PageContent(props: PageContentProps) {
             }}
           >
             {/* ドキュメントのコンテンツ */}
-            <Heading level={section.level}>{section.title}</Heading>
-            <StyledMarkdown content={section.content} />
+            <StyledMarkdown content={section.rawContent} />
           </div>
           <div>
             {/* 右側に表示するチャット履歴欄 */}

app/[docs_id]/splitMarkdown.ts

@@ -6,7 +6,6 @@ export interface MarkdownSection {
   id: string;
   level: number;
   title: string;
-  content: string;
   rawContent: string; // 見出しも含めたもとのmarkdownの内容
 }
 /**
@@ -34,10 +33,6 @@ export function splitMarkdown(content: string): MarkdownSection[] {
     sections.push({
       id: "",
       title: splitContent[startLine - 1].replace(/#+\s*/, "").trim(),
-      content: splitContent
-        .slice(startLine - 1 + 1, endLine ? endLine - 1 : undefined)
-        .join("\n")
-        .trim(),
       level: headingNodes.at(i)!.depth,
       rawContent: splitContent
         .slice(startLine - 1, endLine ? endLine - 1 : undefined)

app/[lang]/[pageId]/page.tsx

@@ -86,18 +86,14 @@ async function getMarkdownSections(
         id: `${lang}-${pageId}-intro`,
         level: 1,
         title: pageTitle,
-        content: raw.trim(),
         rawContent: raw.trim(),
       });
     } else {
       const { id, title, level, body } = parseFrontmatter(raw);
-      // bodyには見出し行が含まれるので、contentとしては見出しを除いた本文のみを渡す
-      const content = body.replace(/^#{1,6} [^\n]*\n?/, "").trim();
       sections.push({
         id,
         level,
         title,
-        content,
         rawContent: body.trim(),
       });
     }
@@ -114,7 +110,7 @@ export async function generateMetadata({
   const pagesList = await getPagesList();
   const langEntry = pagesList.find((l) => l.id === lang);
   const pageIndex = langEntry?.pages.findIndex((p) => p.slug === pageId) ?? -1;
-  const pageEntry = pageIndex >= 0 ? langEntry?.pages[pageIndex] : undefined;
+  const pageEntry = pageIndex >= 0 ? langEntry!.pages[pageIndex] : undefined;
   if (!langEntry || !pageEntry) notFound();
 
   return {
@@ -136,12 +132,8 @@ export default async function Page({
   const docsId = `${lang}/${pageId}`;
   const sections = await getMarkdownSections(lang, pageId, pageEntry!.name);
 
-  // AI用のドキュメント全文（見出し付きで結合）
-  const documentContent = sections
-    .map((s) =>
-      s.level > 0 ? `${"#".repeat(s.level)} ${s.title}\n\n${s.content}` : s.content
-    )
-    .join("\n\n");
+  // AI用のドキュメント全文（rawContentを結合）
+  const documentContent = sections.map((s) => s.rawContent).join("\n\n");
 
   const context = await initContext();
   const initialChatHistories = await getChatFromCache(docsId, context);