const appConfig = {
 prodct1: {
    environments: {
      production: ["acme.com"],
      development: [
        "localhost",
        "development.acme.com",
        "pr-(?<prNumber>.*).acme.com",
      ],
    }
  }
}

const environment =
  process.env.ENVIRONMENT !== undefined
    ? process.env.ENVIRONMENT
    : process.env.NODE_ENV;

const beforeFiles = Object.keys(appConfig).flatMap((appKey) => {
  const app = appConfig[appKey]; // appConfig[product1]
  return Object.keys(app.environments)
    .filter((env) => env === environment)
    .flatMap((env) => {
      const domains = app.environments[env];
      return domains?.map((domain) => ({
        source: "/:path((?!api|auth|_next/static|_next/image|favicon.ico).*)",
        has: [
          {
            type: "host",
            value: domain,
          },
        ],
        destination: `/products/${appKey.toLowerCase()}/:path(.*)`, // /products/product1/*
      }));
    });
});