// The apps-directory contract: web/static/apps/ holds apps and nothing else.
// Every .js file there calls defineApp — one app per file — so listing the
// directory lists the apps. Shared machinery an app leans on (the schema
// engine + renderer, the flow engine, Eleven's scripted-conversation feel, the
// Vault's lock crypto) is a sibling module in web/static/, imported as
// ../<name>.js. Helpers drifted in here once and made the directory a poor
// index of what an app IS; this test keeps it honest.
//   node test/apps-dir.test.mjs
import assert from "node:assert/strict";
import { readFileSync, readdirSync } from "node:fs";

const dir = new URL("../web/static/apps/", import.meta.url);
const files = readdirSync(dir).filter((f) => f.endsWith(".js")).sort();

// A defineApp CALL, not a mention: schema-render.js documented the framework in
// prose and would have passed a bare substring match.
const CALLS_DEFINE_APP = /\bdefineApp\s*\(/;

const notApps = files.filter((f) => !CALLS_DEFINE_APP.test(readFileSync(new URL(f, dir), "utf8")));
assert.deepStrictEqual(
  notApps,
  [],
  `web/static/apps/ must contain only apps, but these call no defineApp: ${notApps.join(", ")}.\n` +
    `Move shared machinery to web/static/ and import it as ../<name>.js.`,
);

// Guard the guard: a directory that somehow scanned empty would pass vacuously.
assert.ok(files.length > 10, `expected the apps directory to hold apps, found ${files.length} .js files`);

console.log(`apps-dir tests passed (${files.length} apps, all calling defineApp)`);