From 00e436c2dae2c603906f48621a1606906ad5cb46 Mon Sep 17 00:00:00 2001
From: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
Date: Sat, 9 Aug 2025 22:46:13 +0900
Subject: [PATCH 1/2] =?UTF-8?q?markdown=E3=82=92=E3=82=BB=E3=82=AF?=
 =?UTF-8?q?=E3=82=B7=E3=83=A7=E3=83=B3=E3=81=94=E3=81=A8=E3=81=AB=E5=88=86?=
 =?UTF-8?q?=E5=89=B2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/[docs_id]/markdown.tsx     | 19 ++++++--------
 app/[docs_id]/page.tsx         | 15 +++++++----
 app/[docs_id]/section.tsx      | 33 ++++++++++++++++++++++++
 app/[docs_id]/splitMarkdown.ts | 46 ++++++++++++++++++++++++++++++++++
 4 files changed, 96 insertions(+), 17 deletions(-)
 create mode 100644 app/[docs_id]/section.tsx
 create mode 100644 app/[docs_id]/splitMarkdown.ts

diff --git a/app/[docs_id]/markdown.tsx b/app/[docs_id]/markdown.tsx
index 800366a..71b3611 100644
--- a/app/[docs_id]/markdown.tsx
+++ b/app/[docs_id]/markdown.tsx
@@ -1,6 +1,7 @@
 import Markdown, { Components } from "react-markdown";
 import remarkGfm from "remark-gfm";
 import { Prism as SyntaxHighlighter } from "react-syntax-highlighter";
+import { Heading } from "./section";
 
 export function StyledMarkdown({ content }: { content: string }) {
   return (
@@ -12,18 +13,12 @@ export function StyledMarkdown({ content }: { content: string }) {
 
 // TailwindCSSがh1などのタグのスタイルを消してしまうので、手動でスタイルを指定する必要がある
 const components: Components = {
-  h1: ({ node, ...props }) => (
-    <h1 className="text-2xl font-bold my-4" {...props} />
-  ),
-  h2: ({ node, ...props }) => (
-    <h2 className="text-xl font-bold mt-4 mb-3 " {...props} />
-  ),
-  h3: ({ node, ...props }) => (
-    <h3 className="text-lg font-bold mt-4 mb-2" {...props} />
-  ),
-  h4: ({ node, ...props }) => (
-    <h4 className="text-base font-bold mt-3 mb-2" {...props} />
-  ),
+  h1: ({ children }) => <Heading level={1}>{children}</Heading>,
+  h2: ({ children }) => <Heading level={2}>{children}</Heading>,
+  h3: ({ children }) => <Heading level={3}>{children}</Heading>,
+  h4: ({ children }) => <Heading level={4}>{children}</Heading>,
+  h5: ({ children }) => <Heading level={5}>{children}</Heading>,
+  h6: ({ children }) => <Heading level={6}>{children}</Heading>,
   p: ({ node, ...props }) => <p className="mx-2 my-2" {...props} />,
   ul: ({ node, ...props }) => (
     <ul className="list-disc list-outside ml-6 my-2" {...props} />
diff --git a/app/[docs_id]/page.tsx b/app/[docs_id]/page.tsx
index 8a2d4ac..d495520 100644
--- a/app/[docs_id]/page.tsx
+++ b/app/[docs_id]/page.tsx
@@ -1,9 +1,10 @@
 import { notFound } from "next/navigation";
 import { ChatForm } from "./chatForm";
-import { StyledMarkdown } from "./markdown";
 import { getCloudflareContext } from "@opennextjs/cloudflare";
-import { readFile } from "node:fs/promises"; 
+import { readFile } from "node:fs/promises";
 import { join } from "node:path";
+import { MarkdownSection, splitMarkdown } from "./splitMarkdown";
+import { Section } from "./section";
 
 export default async function Page({
   params,
@@ -14,13 +15,13 @@ export default async function Page({
 
   let mdContent: string;
   try {
-    if (process.env.NODE_ENV === 'development') {
+    if (process.env.NODE_ENV === "development") {
       mdContent = await readFile(
         join(process.cwd(), "public", "docs", `${docs_id}.md`),
         "utf-8"
       );
     } else {
-	  const cfAssets = getCloudflareContext().env.ASSETS;
+      const cfAssets = getCloudflareContext().env.ASSETS;
       mdContent = await cfAssets!
         .fetch(`https://assets.local/docs/${docs_id}.md`)
         .then((res) => res.text());
@@ -30,9 +31,13 @@ export default async function Page({
     notFound();
   }
 
+  const splitMdContent: MarkdownSection[] = await splitMarkdown(mdContent);
+
   return (
     <div className="p-4">
-      <StyledMarkdown content={mdContent} />
+      {splitMdContent.map((section, index) => (
+        <Section key={index} section={section} />
+      ))}
       <ChatForm />
     </div>
   );
diff --git a/app/[docs_id]/section.tsx b/app/[docs_id]/section.tsx
new file mode 100644
index 0000000..f3cc467
--- /dev/null
+++ b/app/[docs_id]/section.tsx
@@ -0,0 +1,33 @@
+"use client";
+
+import { ReactNode } from "react";
+import { type MarkdownSection } from "./splitMarkdown";
+import { StyledMarkdown } from "./markdown";
+
+// 1つのセクションのタイトルと内容を表示する。内容はMarkdownとしてレンダリングする
+export function Section({ section }: { section: MarkdownSection }) {
+  return (
+    <>
+      <Heading level={section.level}>{section.title}</Heading>
+      <StyledMarkdown content={section.content} />
+    </>
+  );
+}
+
+export function Heading({ level, children }: { level: number; children: ReactNode }) {
+  switch (level) {
+    case 1:
+      return <h1 className="text-2xl font-bold my-4">{children}</h1>;
+    case 2:
+      return <h2 className="text-xl font-bold mt-4 mb-3 ">{children}</h2>;
+    case 3:
+      return <h3 className="text-lg font-bold mt-4 mb-2">{children}</h3>;
+    case 4:
+      return <h4 className="text-base font-bold mt-3 mb-2">{children}</h4>;
+    case 5:
+      // TODO: これ以下は4との差がない (全体的に大きくする必要がある？)
+      return <h5 className="text-base font-bold mt-3 mb-2">{children}</h5>;
+    case 6:
+      return <h6 className="text-base font-bold mt-3 mb-2">{children}</h6>;
+  }
+}
diff --git a/app/[docs_id]/splitMarkdown.ts b/app/[docs_id]/splitMarkdown.ts
new file mode 100644
index 0000000..104e2e2
--- /dev/null
+++ b/app/[docs_id]/splitMarkdown.ts
@@ -0,0 +1,46 @@
+"use server";
+
+import { unified } from "unified";
+import remarkParse from "remark-parse";
+import remarkGfm from "remark-gfm";
+
+export interface MarkdownSection {
+  level: number;
+  title: string;
+  content: string;
+}
+/**
+ * Markdownコンテンツを見出しごとに分割し、
+ * 見出しのレベルとタイトル、内容を含むオブジェクトの配列を返す。
+ */
+export async function splitMarkdown(
+  content: string
+): Promise<MarkdownSection[]> {
+  const tree = unified().use(remarkParse).use(remarkGfm).parse(content);
+  // console.log(tree.children.map(({ type, position }) => ({ type, position: JSON.stringify(position) })));
+  const headingNodes = tree.children.filter((node) => node.type === "heading");
+  const splitContent = content.split("\n");
+  const sections: MarkdownSection[] = [];
+  for (let i = 0; i < headingNodes.length; i++) {
+    const startLine = headingNodes.at(i)?.position?.start.line;
+    if (startLine === undefined) {
+      continue;
+    }
+    let endLine: number | undefined = undefined;
+    for (let j = i + 1; j < headingNodes.length; j++) {
+      if (headingNodes.at(j)?.position?.start.line !== undefined) {
+        endLine = headingNodes.at(j)!.position!.start.line;
+        break;
+      }
+    }
+    sections.push({
+      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,
+    });
+  }
+  return sections;
+}

From 81a836faddda5917a0163668b7cf159ead5e3f92 Mon Sep 17 00:00:00 2001
From: na-trium-144 <100704180+na-trium-144@users.noreply.github.com>
Date: Sat, 9 Aug 2025 23:16:06 +0900
Subject: [PATCH 2/2] =?UTF-8?q?ChatForm=E3=82=92section=E3=81=AE=E3=81=BB?=
 =?UTF-8?q?=E3=81=86=E3=81=AB=E7=A7=BB=E5=8B=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/[docs_id]/page.tsx    | 2 --
 app/[docs_id]/section.tsx | 6 ++++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/[docs_id]/page.tsx b/app/[docs_id]/page.tsx
index d495520..cf80393 100644
--- a/app/[docs_id]/page.tsx
+++ b/app/[docs_id]/page.tsx
@@ -1,5 +1,4 @@
 import { notFound } from "next/navigation";
-import { ChatForm } from "./chatForm";
 import { getCloudflareContext } from "@opennextjs/cloudflare";
 import { readFile } from "node:fs/promises";
 import { join } from "node:path";
@@ -38,7 +37,6 @@ export default async function Page({
       {splitMdContent.map((section, index) => (
         <Section key={index} section={section} />
       ))}
-      <ChatForm />
     </div>
   );
 }
diff --git a/app/[docs_id]/section.tsx b/app/[docs_id]/section.tsx
index f3cc467..9b7f11a 100644
--- a/app/[docs_id]/section.tsx
+++ b/app/[docs_id]/section.tsx
@@ -3,14 +3,16 @@
 import { ReactNode } from "react";
 import { type MarkdownSection } from "./splitMarkdown";
 import { StyledMarkdown } from "./markdown";
+import { ChatForm } from "./chatForm";
 
 // 1つのセクションのタイトルと内容を表示する。内容はMarkdownとしてレンダリングする
 export function Section({ section }: { section: MarkdownSection }) {
   return (
-    <>
+    <div>
       <Heading level={section.level}>{section.title}</Heading>
       <StyledMarkdown content={section.content} />
-    </>
+      <ChatForm />
+    </div>
   );
 }