import { readdirSync, readFileSync, statSync, writeFileSync } from "node:fs";
import { join } from "node:path";
import type { Catalog, ServiceMetadata } from "../src/types.ts";

const here = import.meta.dir;
const repoRoot = join(here, "..", "..");
const servicesDir = join(repoRoot, "services");

const services: Catalog["services"] = [];

for (const name of readdirSync(servicesDir).sort()) {
  const metaPath = join(servicesDir, name, "metadata.json");
  if (!statSync(metaPath, { throwIfNoEntry: false })?.isFile()) continue;

  const meta = JSON.parse(readFileSync(metaPath, "utf8")) as ServiceMetadata;
  services.push({
    id: meta.id ?? name,
    version: meta.version ?? "unknown",
    path: `services/${name}/metadata.json`,
  });
}

const catalog: Catalog = {
  generatedAt: new Date().toISOString(),
  services,
};

const out = join(servicesDir, "catalog.json");
writeFileSync(out, `${JSON.stringify(catalog, null, 2)}\n`, "utf8");
console.log(`Wrote ${out} with ${services.length} services.`);