getBlogPosts.js

import fs from "fs";
import path from "path";
import matter from "gray-matter";
import getAllMdFilesInDir from "../utils/getAllMdFilesInDir.js";
import getOptimizedImageAttributes from "../utils/images/getOptimizedImageAttributesJS.js";
import getPublicFilePath from "../utils/getPublicFilePath.js";
import slugify from "../utils/slugify.js";

function getPostsData(files) {
  return files
    .map((postPath) => {
      const fileContents = fs.readFileSync(postPath, "utf8");

      const fileName = path.basename(postPath);
      const oldSlug = fileName.replace(/\.md$/, "");

      const {
        data: {
          title,
          draft,
          longExcerpt,
          shortExcerpt,
          url,
          date,
          author,
          x2images,
          thumbImage,
          blog,
          oldUrl,
        },
      } = matter(fileContents);

      const publicFilePath = getPublicFilePath(postPath);
      const thumbImagePath = thumbImage ? publicFilePath + thumbImage : null;

      return {
        x2images: !!x2images,
        fullFilePath: postPath,
        thumbImage: getOptimizedImageAttributes(thumbImagePath),
        publicFilePath,
        oldSlug,
        draft: !!draft,
        title: title || "",
        date: date || "",
        tags: blog || [],
        author: author || "",
        longExcerpt: longExcerpt || "",
        shortExcerpt: shortExcerpt || "",
        url: slugify(url || title || oldSlug),
        oldUrl: oldUrl || "",
        _type: "blog",
      };
    })
    .sort((a, b) => new Date(b.date) - new Date(a.date));
}

export function getBlogsMetadata() {
  return getPostsData(getAllMdFilesInDir("public/blog"));
}