rollup.js

import fs from "node:fs"
import { each } from "./src/lib/util/index.js"
import { createIndex, resolvePath } from "./src/lib/util/node.js"

import alias from "@rollup/plugin-alias"
import commonjs from "@rollup/plugin-commonjs"
import { nodeResolve } from "@rollup/plugin-node-resolve"
import terser from "@rollup/plugin-terser"

export default function (banner, pkg) {
  function _({ src, dest, name: _name }) {
    const name = `${pkg.name}${_name ? `-${_name}` : ""}.js`
    const config = {
      name,
      input: src.startsWith(".") ? src : `./src/${src}`,
      output: {
        file: dest.startsWith(".") ? dest : `./dist/${dest}`,
        strict: true,
        // sourcemap: true,
        format: "es",
        banner: banner(name),
      },
      plugins: [
        alias({
          entries: [
            {
              find: /^\@\/src\//,
              replacement: `${resolvePath("./src", import.meta)}/`,
            },
            {
              find: /^\@\/lib\//,
              replacement: `${resolvePath("./src/lib", import.meta)}/`,
            },
            {
              find: /^\@\/data\//,
              replacement: `${resolvePath("./src/data", import.meta)}/`,
            },
            {
              find: /^\@\/util\//,
              replacement: `${resolvePath("./src/lib/util", import.meta)}/`,
            },
            {
              find: /^serialize-javascript$/,
              replacement: resolvePath(
                "./src/lib/serialize-javascript/index.js",
                import.meta
              ),
            },
          ],
        }),
        commonjs(),
        nodeResolve({
          preferBuiltins: false,
        }),
      ],
    }

    if (!process?.env?.DISABLE_MINIFIER) config.plugins.push(terser())

    return config
  }

  createIndex(resolvePath("./src/data/block", import.meta), {
    suffixToRead: ".json.js",
  })

  const output = {}

  // bundle.js
  output.bundled = _({
    src: "script/index.js",
    dest: "bundle.min.js",
    name: "bundle",
  })

  // single script
  output.scripts = []
  each(
    fs.readdirSync("./src/script", {
      withFileTypes: true,
    }),
    (dirent) => {
      if (dirent.isDirectory()) {
        const name = dirent.name
        output.scripts.push(
          _({
            src: `script/${name}/index.js`,
            dest: `${name}.min.js`,
            name,
          })
        )
      }
    }
  )

  // libraries
  output.libraries = []
  each(
    fs.readdirSync("./src/lib", {
      withFileTypes: true,
    }),
    (dirent) => {
      if (dirent.isDirectory()) {
        const name = dirent.name
        if (name === "database" || name === "option-manager") {
          output.libraries.push(
            _({
              src: `lib/${name}/index.js`,
              dest: `${name}.min.js`,
              name,
            })
          )
        }
      }
    }
  )

  // test
  // if (process?.env?.NODE_ENV === "development")
  //   output.test = _({
  //     src: "script/test/index.js",
  //     dest: "test.min.js",
  //     name: "test",
  //   })

  return output
}