From 89931ca2f00596ffce041ec479fd25f082c5dbbf Mon Sep 17 00:00:00 2001
From: Tom Moor <tom.moor@gmail.com>
Date: Wed, 10 Jan 2024 21:19:39 -0500
Subject: [PATCH] fix: Improve reliability of inter-linking documents through
 importer. closes OLN-156

---
 server/utils/turndown/index.ts      |  2 ++
 server/utils/turndown/inlineLink.ts | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 server/utils/turndown/inlineLink.ts

diff --git a/server/utils/turndown/index.ts b/server/utils/turndown/index.ts
index 120024c6f..990a17454 100644
--- a/server/utils/turndown/index.ts
+++ b/server/utils/turndown/index.ts
@@ -5,6 +5,7 @@ import emptyLists from "./emptyLists";
 import emptyParagraph from "./emptyParagraph";
 import frames from "./frames";
 import images from "./images";
+import inlineLink from "./inlineLink";
 import sanitizeLists from "./sanitizeLists";
 import sanitizeTables from "./sanitizeTables";
 import underlines from "./underlines";
@@ -24,6 +25,7 @@ const service = new TurndownService({
 })
   .remove(["script", "style", "title", "head"])
   .use(gfm)
+  .use(inlineLink)
   .use(emptyParagraph)
   .use(sanitizeTables)
   .use(sanitizeLists)
diff --git a/server/utils/turndown/inlineLink.ts b/server/utils/turndown/inlineLink.ts
new file mode 100644
index 000000000..1c0920ada
--- /dev/null
+++ b/server/utils/turndown/inlineLink.ts
@@ -0,0 +1,22 @@
+import TurndownService from "turndown";
+
+/**
+ * A turndown plugin for converting anchors to inline links without a title.
+ *
+ * @param turndownService The TurndownService instance.
+ */
+export default function underlines(turndownService: TurndownService) {
+  turndownService.addRule("inlineLink", {
+    filter(node, options) {
+      return !!(
+        options.linkStyle === "inlined" &&
+        node.nodeName === "A" &&
+        node.getAttribute("href")
+      );
+    },
+    replacement(content, node: HTMLElement) {
+      const href = node.getAttribute("href");
+      return "[" + content + "](" + href + ")";
+    },
+  });
+}