// Generate public/config.json — the runtime config the account / orders /
// scan / purchase / remote-desktop pages read via /landing/bigapi.js. This
// replaces the old /api/config server route so the site can ship as a static
// bundle (no Node server). Every value here is PUBLIC (the old React
// site baked the same ones into its client bundle) — never put secrets here.
//
// Values come from the build environment; unset -> the local mock (/api/mock,
// served by `next dev`). Run at build time and by `npm run local`.
import fs from "node:fs";

const mock = "/api/mock";
const config = {
  apiServerUrl: process.env.BIG_API_SERVER_URL || mock,
  cloudApiServerUrl: process.env.BIG_CLOUD_API_URL || mock,
  apiKey: process.env.BIG_API_KEY || "mock-api-key",
  rdcServerHost: process.env.BIG_RDC_SERVER_HOST || `${mock}/rdc`,
  stripePublishableKey:
    process.env.BIG_STRIPE_PK || "pk_test_1nrqtk8swOmQqgChY2eLofrc",
  mock: !process.env.BIG_API_SERVER_URL,
};

fs.mkdirSync("public", { recursive: true });
fs.writeFileSync("public/config.json", JSON.stringify(config, null, 2) + "\n");
console.log(
  `config.json written (${config.mock ? "MOCK" : "live API"}: ${config.apiServerUrl})`,
);

// Staging builds also ship config.prod.json (the production API tier) so a
// tester can flip a staging page onto prod APIs with ?api=prod — no rebuild,
// no republish (see src/site/partials/bigapi.js and STAGE-TEST-RELEASE.md §3).
// Production builds set no BIG_PROD_* vars, ship no config.prod.json, and the
// switch stays inert there. These values are public, same as config.json.
if (process.env.BIG_PROD_API_SERVER_URL) {
  const prod = {
    apiServerUrl: process.env.BIG_PROD_API_SERVER_URL,
    cloudApiServerUrl: process.env.BIG_PROD_CLOUD_API_URL || mock,
    apiKey: process.env.BIG_PROD_API_KEY || "mock-api-key",
    rdcServerHost: process.env.BIG_PROD_RDC_SERVER_HOST || `${mock}/rdc`,
    stripePublishableKey:
      process.env.BIG_PROD_STRIPE_PK || config.stripePublishableKey,
    mock: false,
  };
  fs.writeFileSync(
    "public/config.prod.json",
    JSON.stringify(prod, null, 2) + "\n",
  );
  console.log(`config.prod.json written (prod tier: ${prod.apiServerUrl})`);
} else if (fs.existsSync("public/config.prod.json")) {
  fs.rmSync("public/config.prod.json");
  console.log("stale config.prod.json removed (no BIG_PROD_* env)");
}