const fs = require("fs");
const HEADER_TEMPLATE = `

[//]: # (Do not edit this file by hand.)

[//]: # (This is a generated file.)

[//]: # (If you want to change something in this file)

[//]: # (go to meteor/docs/generators/packages-listing)

# Core Packages


`;

const OUTSIDE_OF_CORE_PACKAGES = [
  {
    name: "blaze",
    link: "https://github.com/meteor/blaze",
  },
  {
    name: "react-packages",
    link: "https://github.com/meteor/react-packages",
  },
];

const IGNORED = ["depracated", "non-core"];
const getPackages = () => {
  const packages = fs
    .readdirSync("../../packages", { withFileTypes: true })
    .filter((dirent) => dirent.isDirectory())
    .map((dirent) => dirent.name)
    .filter((name) => !IGNORED.includes(name))
    .map((name) => {
      return {
        name,
        link: `https://github.com/meteor/meteor/tree/devel/packages/${name}`,
      };
    });
  return [...OUTSIDE_OF_CORE_PACKAGES, ...packages];
};

const generateMarkdown = (packages) =>
  packages.map(({ name, link }) => `### [${name}](${link}) {#${name}}`).join("\n");

exports.listPackages = function() {
  console.log("🚂 Started listing 🚂");
  const packages = getPackages();
  const markdown = generateMarkdown(packages);
  const content = HEADER_TEMPLATE + markdown;
  console.log("📝 Writing to file 📝");
  fs.writeFileSync("./api/packages-listing.md", content);
  console.log("🚀 Done package listing 🚀");
}