contentlayer.config.ts

import {
  defineDocumentType,
  makeSource,
  type ComputedFields,
} from "contentlayer2/source-files";
import rehypeAutolinkHeadings from "rehype-autolink-headings";
import rehypePrettyCode from "rehype-pretty-code";
import rehypeSlug from "rehype-slug";
import remarkGfm from "remark-gfm";

const computedFields: ComputedFields = {
  slug: {
    type: "string",
    resolve: (doc) => `/${doc._raw.flattenedPath}`,
  },
  slugAsParams: {
    type: "string",
    resolve: (doc) => doc._raw.flattenedPath.split("/").slice(1).join("/"),
  },
};

export const Guide = defineDocumentType(() => ({
  name: "Guide",
  filePathPattern: `guides/**/*.mdx`,
  contentType: "mdx",
  fields: {
    title: {
      type: "string",
      required: true,
    },
    description: {
      type: "string",
    },
    date: {
      type: "date",
      required: true,
    },
    published: {
      type: "boolean",
      default: true,
    },
    featured: {
      type: "boolean",
      default: false,
    },
  },
  computedFields,
}));

export const Page = defineDocumentType(() => ({
  name: "Page",
  filePathPattern: `pages/**/*.mdx`,
  contentType: "mdx",
  fields: {
    title: {
      type: "string",
      required: true,
    },
    description: {
      type: "string",
    },
  },
  computedFields,
}));

export const Post = defineDocumentType(() => ({
  name: "Post",
  filePathPattern: `blog/**/*.mdx`,
  contentType: "mdx",
  fields: {
    title: {
      type: "string",
      required: true,
    },
    description: {
      type: "string",
    },
    date: {
      type: "date",
      required: true,
    },
    image: {
      type: "string",
      required: true,
    },
    published: {
      type: "boolean",
      default: true,
    },
    authors: {
      // Reference types are not embedded.
      // Until this is fixed, we can use a simple list.
      // type: "reference",
      // of: Author,
      type: "list",
      of: { type: "string" },
      required: true,
    },
    categories: {
      type: "list",
      of: {
        type: "enum",
        options: ["news", "articles"],
        default: "news",
      },
      required: true,
    },
    related: {
      type: "list",
      of: {
        type: "string",
      },
    },
  },
  computedFields,
}));

export default makeSource({
  contentDirPath: "./content",
  documentTypes: [Guide, Page, Post],
  mdx: {
    remarkPlugins: [remarkGfm],
    rehypePlugins: [
      rehypeSlug,
      [rehypePrettyCode, { theme: "poimandres", keepBackground: false }],
      [
        rehypeAutolinkHeadings,
        {
          properties: {
            className: ["subheading-anchor"],
            ariaLabel: "Link to section",
          },
        },
      ],
    ],
  },
});