export async function getPosts(tag: string | null = null) {
	const allPostFiles = import.meta.glob('$content/post/*.md');
	const iterablePostFiles = Object.entries(allPostFiles);

	let posts = await Promise.all(
		iterablePostFiles.map(async ([pathMarkdown, resolver]) => {
			const { metadata } = await resolver();
			const pathPost = "/post/" + pathMarkdown.slice(pathMarkdown.lastIndexOf("/") + 1, -".md".length);

			return {
				meta: {
					...metadata,
					date: new Date(metadata.date),
				},
				path: pathPost
			};
		})
	);
	if (tag)
		posts = posts.filter(obj => obj.meta.tags.includes(tag))

	posts.sort((post1, post2) => {
		const date1: Date = post1.meta.date;
		const date2: Date = post2.meta.date;
		return date2.getTime() - date1.getTime();
	});
	return posts;
}

export async function getTags() {
	const allPostFiles = import.meta.glob('$content/post/*.md');
	const iterablePostFiles = Object.entries(allPostFiles);

	const allPosts: string[][] = await Promise.all(
		iterablePostFiles.map(async ([_, resolver]) => {
			const { metadata } = await resolver();
			return metadata.tags;
		})
	);
	return new Set(allPosts.flat());
}