import { resolve } from 'node:path';
import { writeFile } from 'node:fs/promises';
import { output, postsDirectory } from '../../config';
import { createPostsObject, Post } from './create-post-object';
import { ensureDirectoryExists } from '../../utils/ensure-directory-exists';
import { globDirectory } from '../../utils/glob-directory';
import { buildRSS } from '../indexes/rss';
import { buildAll } from '../indexes/all';
import { buildJSON } from '../indexes/json';

export const buildPost = async (post: Post) => {
  const outputDir = resolve(output, post.file.relativeFolder);
  await ensureDirectoryExists(outputDir);
  return writeFile(
    resolve(outputDir, `${post.file.fileName.replace('.md', '')}.html`),
    post.templatedContent,
  );
};

export const buildPosts = async () => {
  const paths = await globDirectory('**/*.md', postsDirectory);
  const posts = await createPostsObject(paths, postsDirectory);

  await Promise.all([
    ...posts.map(buildPost),
    buildRSS(posts),
    buildAll(posts),
    buildJSON(posts),
  ]);
};