import type { InstalledOfflineCommandContribution } from "../contracts/offline-command.ts";
import type {
  InstalledRealtimeContribution,
  InstalledRuntimeCapabilities,
} from "../contracts/runtime-capabilities.ts";
import {
  validateRealtimeContributions,
} from "../contracts/runtime-capabilities.ts";
import type { InstalledServiceWorkerSelection } from "../contracts/service-worker.ts";
import {
  validateWebWorkerContributions,
  type InstalledWebWorkerContribution,
} from "../contracts/web-worker.ts";

/**
 * §3.5. Static optional capability selection SSOT.
 *
 * Adding an entry here is what installs a capability. Runtime Config can only
 * disable what this file already selected, and no dynamic import path is ever
 * built from a configuration string.
 *
 * Current template state, matching the §25 stop conditions:
 *
 * - realtime: `NOT_SELECTED`. The RT-01..RT-04 common runtime exists and is
 *   independently verified, but no product contribution supplies an exact
 *   endpoint, event descriptor and recovery mode (§13.6).
 * - webWorkers: `NOT_SELECTED`. No profiled CPU-bound task with an owner
 *   exists, so no production worker entry is created (§16.2).
 * - serviceWorker: `null`. Switching to `ACTIVE` also enables the two-pass
 *   build in `scripts/build-frontend.ts`.
 * - offlineCommands: `NOT_SELECTED`. No external package declares a `KEYED`
 *   operation with a recovery descriptor (§19.3).
 */

const REALTIME: readonly InstalledRealtimeContribution[] = Object.freeze([]);

const WEB_WORKERS: readonly InstalledWebWorkerContribution[] = Object.freeze([]);

const SERVICE_WORKER: InstalledServiceWorkerSelection | null = null;

const OFFLINE_COMMANDS: InstalledOfflineCommandContribution | null = null;

export const INSTALLED_RUNTIME_CAPABILITIES: InstalledRuntimeCapabilities =
  Object.freeze({
    realtime: validateRealtimeContributions(REALTIME),
    webWorkers: validateWebWorkerContributions(WEB_WORKERS),
    serviceWorker: SERVICE_WORKER,
    offlineCommands: OFFLINE_COMMANDS,
  });