import type {
  RuntimeCapabilityId,
  RuntimeCapabilityStatus,
} from "../../src/contracts/runtime-capabilities.ts";
import type { RuntimeCapabilitiesPort } from "../../src/application/ports/runtime-capabilities-port.ts";

const CAPABILITY_IDS = Object.freeze([
  "REALTIME",
  "WEB_WORKER",
  "SERVICE_WORKER",
  "OFFLINE_COMMANDS",
] as const);

/**
 * A capability port whose snapshot is fixed by the test rather than by the
 * repository's installed selection, so a suite asserting presentation behaviour
 * does not change meaning when a capability is later installed.
 */
export function createRuntimeCapabilitiesStub(
  overrides: Readonly<Partial<Record<RuntimeCapabilityId, Partial<RuntimeCapabilityStatus>>>> = {},
): RuntimeCapabilitiesPort {
  const snapshot = Object.freeze(
    CAPABILITY_IDS.map((capabilityId) =>
      Object.freeze({
        capabilityId,
        selected: 0,
        active: 0,
        override: "DEFAULT" as const,
        ...overrides[capabilityId],
      }),
    ),
  );
  return Object.freeze({ getSnapshot: () => snapshot });
}