import resolve from "@rollup/plugin-node-resolve";
import cjs from "@rollup/plugin-commonjs";
import asset from "./lib/asset-plugin.js";
import json from "./lib/json-plugin.js";
import autojson from "./lib/autojson-plugin.js";
import { getBabelOutputPlugin } from "@rollup/plugin-babel";
import { builtinModules } from "module";

/** @type {import('rollup').RollupOptions} */
export default ({
  input: "src/index.js",
  output: {
    dir: "build",
    format: "cjs",
    assetFileNames: "[name]-[hash][extname]",
    // This is needed so the resulting `index.js` can be
    // executed by `npx`.
    banner: "#!/usr/bin/env node"
  },
  plugins: [
    resolve(),
    cjs(),
    asset(),
    autojson(),
    json(),
    getBabelOutputPlugin({
      babelrc: false,
      configFile: false,
      minified: true,
      comments: false,
      presets: [
        [
          "@babel/preset-env",
          {
            targets: {
              node: 12
            },
            loose: true
          }
        ]
      ]
    })
  ],
  external: builtinModules
});