import { APP_BASE_HREF } from '@angular/common';
import { CommonEngine, isMainModule } from '@angular/ssr/node';
import express from 'express';
import 'localstorage-polyfill';
import { dirname, join, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';
import bootstrap from './src/main.server';

// The Express app is exported so that it can be used by serverless Functions.
export function app(): express.Express {
  const serverDistFolder = dirname(fileURLToPath(import.meta.url));
  const browserDistFolder = resolve(serverDistFolder, '../browser');
  const indexHtml = join(serverDistFolder, 'index.server.html');

  const server = express();
  const commonEngine = new CommonEngine();

  // Serve static files from /browser
  server.get('**', express.static(browserDistFolder, {
    maxAge: 0,
    index: 'index.html'
  }));

  // All regular routes use the Angular engine
  server.get('**', (req, res, next) => {
    const { protocol, originalUrl, baseUrl, headers } = req;

    commonEngine
      .render({
        bootstrap,
        documentFilePath: indexHtml,
        url: `${protocol}://${headers.host}${originalUrl}`,
        publicPath: browserDistFolder,
        providers: [{ provide: APP_BASE_HREF, useValue: baseUrl }],
      })
      .then((html) => res.send(html))
      .catch((err) => next(err));
  });

  return server;
}

function run(): void {
  if (isMainModule(import.meta.url)) {
    const port = process.env['PORT'] || 8080;
    // Start up the Node server
    const server = app();
    server.listen(port, () => {
      console.log(`Node Express server listening on http://localhost:${port}`);
    });
  }
}

run();

"configurations": {
            "production": {
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "500kB",
                  "maximumError": "1MB"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "2kB",
                  "maximumError": "4kB"
                }
              ],
              "outputHashing": "all",
              "optimization": true,
              "extractLicenses": false,
              "sourceMap": false,
              "namedChunks": false,
              "progress": true,
              "statsJson": true,
              "ssr": {
                "entry": "server.ts"
              },
              "prerender": {
                "discoverRoutes": true
              },
              "polyfills": [
                "src/polyfills.ts"
              ],
              "styles": [
                "src/styles.scss",
                "src/styles/fonts.scss",
                "src/styles/colors.scss",
                "src/styles/forms.scss",
                "node_modules/keen-slider/keen-slider.min.css"
              ],
              "server": "src/main.server.ts",
              "webWorkerTsConfig": "tsconfig.worker.json",
              "aot": true
            },
            "development": {
              "polyfills": [
                "src/polyfills.ts"
              ],
              "optimization": false,
              "extractLicenses": false,
              "sourceMap": true,
              "aot": false,
              "namedChunks": true
            }
          },