const { resolve } = require("path");
const { readdirSync } = require("fs");
const typescript = require("@rollup/plugin-typescript");

/**
 * @type {import('rollup').RollupOptions}
 */
const config = {
  external: ["jl-graphic"],
  input: getEntryPoints(),
  output: {
    dir: "components",
    format: "esm",
    preserveModules: true,
  },
  plugins: [
    typescript({
      tsconfig: "./tsconfig.json",

      compilerOptions: {
        declaration: true,
        declarationDir: "components",
      },
    }),
  ],
};
module.exports = config;

function getEntryPoints() {
  const packageDir = resolve(__dirname, "src/packages");
  const entryPoints = readdirSync(packageDir, { withFileTypes: true })
    .filter((dirent) => dirent.isDirectory())
    .map((dirent) => resolve(packageDir, dirent.name, `${dirent.name}.ts`));
  console.log(entryPoints);
  return entryPoints;
}