feat: use turndown

server/src/markdownify/markdown.ts

@@ -1,109 +1,27 @@
-import koffi from "koffi";
+import TurndownService from "turndown";
-import dotenv from "dotenv";
+import { gfm } from "joplin-turndown-plugin-gfm";
-import { stat } from "fs/promises";
-import path from "node:path";
-import os from "node:os";
 
-const exts = {
-  win32: ".dll",
-  darwin: ".dylib",
-  default: ".so",
-};
-
-const ext =
-  exts[os.platform() as keyof typeof exts] || exts.default;
-
-// Build path to the binary **inside the same folder**
-export const GO_MARKDOWN_PARSER_PATH = path.join(
-  __dirname,
-  "html-to-markdown",
-  `html-to-markdown${ext}`
-);
-
-dotenv.config();
-
-// ---------------------------------------------
-// Native Go binding wrapper
-// ---------------------------------------------
-class NativeMarkdownBridge {
-  private static singleton: NativeMarkdownBridge;
-  private fnConvert: any;
-
-  private constructor() {
-    const lib = koffi.load(GO_MARKDOWN_PARSER_PATH);
-
-    const freeFn = lib.func("FreeCString", "void", ["string"]);
-    const trackedType = "CString:" + crypto.randomUUID();
-    const autoReleasedStr = koffi.disposable(trackedType, "string", freeFn);
-
-    this.fnConvert = lib.func("ConvertHTMLToMarkdown", autoReleasedStr, [
-      "string",
-    ]);
-  }
-
-  static async load(): Promise<NativeMarkdownBridge> {
-    if (!NativeMarkdownBridge.singleton) {
-      try {
-        await stat(GO_MARKDOWN_PARSER_PATH);
-      } catch {
-        throw new Error("Go shared library not found");
-      }
-      NativeMarkdownBridge.singleton = new NativeMarkdownBridge();
-    }
-    return NativeMarkdownBridge.singleton;
-  }
-
-  async run(html: string): Promise<string> {
-    return new Promise((resolve, reject) => {
-      this.fnConvert.async(html, (err: Error, output: string) => {
-        err ? reject(err) : resolve(output);
-      });
-    });
-  }
-}
-
-// ---------------------------------------------
-// Main exposed function
-// ---------------------------------------------
 export async function parseMarkdown(
   html: string | null | undefined,
 ): Promise<string> {
   if (!html) return "";
 
-  // Try Go library first (if enabled)
-  try {
-      const engine = await NativeMarkdownBridge.load();
-      let md = await engine.run(html);
-
-      md = fixBrokenLinks(md);
-      md = stripSkipLinks(md);
-
-      return md;
-  } catch (err: any) {
-    if (err?.message !== "Go shared library not found") {
-        console.log("Go markdown parser failed, falling back to JS parser:", err);
-    } else {
-      console.log("Go parser missing.", { GO_MARKDOWN_PARSER_PATH });
-    }
-  }
-
-  // Fallback parser
-  const TurndownService = require("turndown");
-  const { gfm } = require("joplin-turndown-plugin-gfm");
-
   const t = new TurndownService();
+
+  // Custom rule for inline links
   t.addRule("inlineLink", {
     filter: (node: any, opts: any) =>
       opts.linkStyle === "inlined" &&
       node.nodeName === "A" &&
       node.getAttribute("href"),
     replacement: (content: string, node: any) => {
-      const href = node.getAttribute("href").trim();
+      const href = node.getAttribute("href")?.trim() || "";
       const title = node.title ? ` "${node.title}"` : "";
       return `[${content.trim()}](${href}${title})\n`;
     },
   });
 
+  // GitHub-flavored markdown features
   t.use(gfm);
 
   try {
@@ -134,9 +52,11 @@ function fixBrokenLinks(md: string): string {
       result += ch;
     }
   }
+
   return result;
 }
 
 function stripSkipLinks(md: string): string {
   return md.replace(/\[Skip to Content\]\(#[^\)]*\)/gi, "");
 }
+