text: import svelte from "rollup-plugin-svelte-hot";
  import Hmr from "rollup-plugin-hot";
  import resolve from "@rollup/plugin-node-resolve";
  import commonjs from "@rollup/plugin-commonjs";
  import alias from "@rollup/plugin-alias";
  import livereload from "rollup-plugin-livereload";
  import { terser } from "rollup-plugin-terser";
  import { copySync, removeSync } from "fs-extra";
  import { spassr } from "spassr";
  import getConfig from "@roxi/routify/lib/utils/config";
  import autoPreprocess from "svelte-preprocess";
  import { injectManifest } from "rollup-plugin-workbox";
  
  import { config } from "dotenv";
  import replace from "@rollup/plugin-replace";
  
  const { distDir } = getConfig(); // use Routify's distDir for SSOT
  const assetsDir = "assets";
  const buildDir = `dist/build`;
  const isNollup = !!process.env.NOLLUP;
  const production = !process.env.ROLLUP_WATCH;
  process.env.NODE_ENV = production ? "production" : "development";
  
  // clear previous builds
  removeSync(distDir);
  removeSync(buildDir);
  
  const serve = () => ({
    writeBundle: async () => {
      const options = {
        assetsDir: [assetsDir, distDir],
        entrypoint: `${assetsDir}/__app.html`,
        script: `${buildDir}/main.js`,
      };
      spassr({ ...options, port: 5000 });
      spassr({
        ...options,
        ssr: true,
        port: 5005,
        ssrOptions: { inlineDynamicImports: true, dev: true },
      });
    },
  });
  const copyToDist = () => ({
    writeBundle() {
      copySync(assetsDir, distDir);
    },
  });
  
  export default {
    preserveEntrySignatures: false,
    input: [`src/main.js`],
    output: {
      sourcemap: true,
      format: "esm",
      dir: buildDir,
      // for performance, disabling filename hashing in development
      chunkFileNames: `[name]${(production && "-[hash]") || ""}.js`,
    },
    plugins: [
      alias({ entries: [{ find: "@", replacement: "./src" }] }),
      svelte({
        dev: !production, // run-time checks
        // Extract component CSS — better performance
        css: (css) => css.write(`bundle.css`),
        hot: isNollup,
        preprocess: [
          autoPreprocess({
            postcss: require("./postcss.config.js"),
            defaults: { style: "postcss" },
          }),
        ],
      }),
  
      // resolve matching modules from current working directory
      resolve({
        browser: true,
        dedupe: (importee) => !!importee.match(/svelte(\/|$)/),
      }),
      commonjs(),
  
      production && terser(),
      !production && !isNollup && serve(),
      !production && !isNollup && livereload(distDir), // refresh entire window when code is updated
      !production && isNollup && Hmr({ inMemory: true, public: assetsDir }), // refresh only updated code
      {
        // provide node environment on the client
        transform: (code) => ({
          code: code.replace("process.env.NODE_ENV", `"${process.env.NODE_ENV}"`),
          map: { mappings: "" },
        }),
      },
      injectManifest({
        globDirectory: assetsDir,
        globPatterns: ["**/*.{js,css,svg}", "__app.html"],
        swSrc: `src/sw.js`,
        swDest: `dist/serviceworker.js`,
        maximumFileSizeToCacheInBytes: 10000000, // 10 MB,
        mode: "production",
      }),
      production && copyToDist(),
      replace({
        process: JSON.stringify({
          env: {
            production: production,
            ...config().parsed,
          },
        }),
        "process.env.API_URL": JSON.stringify(process.env.API_URL),
      }),
    ],
    watch: {
      clearScreen: false,
      buildDelay: 100,
    },
  };
  