import { createApplication } from "../application/create-application.js";

/**
 * This is the only module allowed to join concrete adapters to application
 * ports. Boot phases are explicit so failures can stop before product mount.
 *
 * @param {{
 *   loadConfig(): Promise<Record<string, unknown>>,
 *   loadRelease(config: Record<string, unknown>): Promise<Record<string, unknown>>,
 *   createAdapters(context: {
 *     config: Record<string, unknown>,
 *     release: Record<string, unknown>
 *   }): Promise<Parameters<typeof createApplication>[0]>
 * }} factories
 */
export async function createCompositionRoot(factories) {
  const config = await factories.loadConfig();
  const release = await factories.loadRelease(config);
  const ports = await factories.createAdapters({ config, release });
  const application = createApplication(ports);

  return Object.freeze({ config, release, ports, application });
}