/**
* Purdue Brightspace MCP Server
* Copyright (c) 2025 Rohan Muppa. All rights reserved.
* Licensed under AGPL-3.0 — see LICENSE file for details.
*/
import TurndownService from "turndown";
/**
* Singleton TurndownService instance configured for converting D2L HTML to markdown.
* Uses ATX-style headings (###) and fenced code blocks (```).
*/
const turndownService = new TurndownService({
headingStyle: "atx",
codeBlockStyle: "fenced",
});
/**
* Convert D2L HTML content to clean markdown.
* Returns both markdown (for LLM readability) and raw HTML (for fallback).
*
* @param html - Raw HTML string from D2L API (e.g., assignment instructions, content topics)
* @returns Object with both markdown and html representations
*/
export function convertHtmlToMarkdown(
html: string
): { markdown: string; html: string } {
// Handle null/empty input
if (!html || html.trim().length === 0) {
return { markdown: "", html: "" };
}
try {
const markdown = turndownService.turndown(html);
return { markdown, html };
} catch (error) {
// If conversion fails, fallback to raw HTML
return { markdown: html, html };
}
}
