t128n.dev
1import { createHash } from "node:crypto";
2
3/**
4 * Generate a URL-friendly slug from a title and publish date.
5 * @param title The title to slugify.
6 * @param publishDate The publish date to include in the slug.
7 * @returns A slugified string with a unique hash suffix.
8 */
9export function generateSlug(title: string, publishDate: Date): string {
10 const slugified = title
11 .toLowerCase()
12 .trim()
13 .replace(/[.]/g, "-") // Dots to hyphens
14 .replace(/[^a-z0-9\s-]/g, "") // Remove non-alphanumeric, non-space, non-hyphen
15 .replace(/\s+/g, "-") // Spaces to hyphens
16 .replace(/--+/g, "-") // Collapse multiple hyphens
17 .replace(/^-+|-+$/g, ""); // Trim leading/trailing hyphens
18
19 // Create a deterministic hash based on title + publishDate (for uniqueness)
20 const hashInput = `${title}-${publishDate.toISOString()}`;
21 const hash = createHash("sha256").update(hashInput).digest("hex").slice(0, 5); // 5-char hex (e.g., 'r9fs3')
22
23 return `${slugified}-${hash}`;
24}