50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
import { db } from '#lib/server/db/index.js';
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import { blogArticles, metaTables } from '#lib/server/db/schema/index.js';
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import { eq } from 'drizzle-orm';
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export function slugify(title: string, fallback = 'article'): string {
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return (
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title
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.toLowerCase()
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.trim()
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.replace(/[^a-z0-9]+/g, '-')
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.replace(/^-+|-+$/g, '') || fallback
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);
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}
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export async function uniqueSlug(title: string): Promise<string> {
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const base = slugify(title);
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let slug = base;
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let suffix = 2;
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while (
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(await db.select({ id: blogArticles.id }).from(blogArticles).where(eq(blogArticles.slug, slug)))
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.length > 0
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) {
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slug = `${base}-${suffix}`;
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suffix += 1;
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}
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return slug;
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}
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/** /lists/db is the database browser, so no list may use that slug. */
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export const RESERVED_LIST_SLUGS = new Set(['db']);
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export async function uniqueListSlug(name: string): Promise<string> {
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const base = slugify(name, 'list');
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let slug = RESERVED_LIST_SLUGS.has(base) ? `${base}-2` : base;
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let suffix = RESERVED_LIST_SLUGS.has(base) ? 3 : 2;
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while (
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(await db.select({ id: metaTables.id }).from(metaTables).where(eq(metaTables.slug, slug)))
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.length > 0
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) {
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slug = `${base}-${suffix++}`;
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}
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return slug;
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}
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export function validSlug(slug: string): boolean {
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return slug.length <= 120 && /^[a-z0-9]+(?:-[a-z0-9]+)*$/.test(slug);
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}
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