import assert from "node:assert/strict";
import test from "node:test";

import {
  DEVICE_ADAPTER_CONTRACT_VERSION,
  createDeviceAdapterRegistry,
  defineDeviceAdapter,
} from "../src/index.mjs";

function adapter(adapterRef = "generic-tracker", profileRef = "generic.tracker.v1") {
  return {
    contractVersion: DEVICE_ADAPTER_CONTRACT_VERSION,
    adapterRef,
    runtimePackageRef: `@nodedc/${adapterRef}-adapter`,
    profiles: [{
      profileRef,
      framing: { maxBufferedBytes: 64 * 1024 },
    }],
    createSession: () => ({}),
  };
}

test("resolves only explicitly allowlisted adapter profiles", () => {
  const registry = createDeviceAdapterRegistry({
    adapters: [adapter()],
  });
  assert.deepEqual(registry.adapterRefs, ["generic-tracker"]);
  assert.deepEqual(registry.profileRefs, ["generic.tracker.v1"]);
  assert.equal(
    registry.resolveProfile("generic.tracker.v1").adapter.adapterRef,
    "generic-tracker",
  );
  assert.throws(
    () => registry.resolveProfile("unknown.tracker.v1"),
    /device_adapter_profile_not_allowlisted/,
  );
});

test("rejects duplicate adapters and cross-adapter profile collisions", () => {
  assert.throws(
    () => createDeviceAdapterRegistry({ adapters: [adapter(), adapter()] }),
    /device_adapter_registry_adapter_duplicate/,
  );
  assert.throws(
    () => createDeviceAdapterRegistry({
      adapters: [
        adapter("generic-tracker", "shared.profile.v1"),
        adapter("other-tracker", "shared.profile.v1"),
      ],
    }),
    /device_adapter_registry_profile_duplicate/,
  );
});

test("freezes adapter metadata but keeps the session factory callable", () => {
  const defined = defineDeviceAdapter(adapter());
  assert.equal(Object.isFrozen(defined), true);
  assert.equal(Object.isFrozen(defined.profiles[0]), true);
  assert.equal(typeof defined.createSession, "function");
});