import { getCollection, type CollectionEntry } from 'astro:content';

export type Post = CollectionEntry<'posts'>;

/** All published posts, newest first. Drafts are hidden in production builds. */

export async function getPosts(): Promise<Post[]> {

const posts = await getCollection('posts', ({ data }) => import.meta.env.DEV || !data.draft);

return posts.sort((a, b) => b.data.date.getTime() - a.data.date.getTime());

}

/** Every tag in use, with its post count, alphabetically. */

export async function getTags(): Promise<{ tag: string; count: number }[]> {

const posts = await getPosts();

const counts = new Map<string, number>();

for (const post of posts) {

for (const tag of post.data.tags) {

counts.set(tag, (counts.get(tag) ?? 0) + 1);

}

}

return [...counts]

.map(([tag, count]) => ({ tag, count }))

.sort((a, b) => a.tag.localeCompare(b.tag));

}

/** Tags are used in URLs, so they travel lowercased and hyphenated. */

export function tagSlug(tag: string): string {

return tag.toLowerCase().replace(/\s+/g, '-');

}