// A project's own applications (classes under projekt/anwendungen): Java
// installs them when it loads the whole archive (tools/java-oracle, laden);
// this package reads, writes and exports them in a later step (B2). Until
// then the tests compare Java's views without them.

import { FILIUS_APPLICATION_CLASSES } from '../src/index.js';

/** The corpus files with an own application installed on a host. */
export const OWN_APPLICATION_FILES = ['java-examples/anwendung_komplett.fls', 'java-examples/multicast_server.fls'];

type View = { nodes?: { system: Record<string, unknown> }[] };

/** Java's view without the applications FILIUS does not ship. */
export function withoutOwnApplications<T>(view: T): T {
  const { nodes } = view as View;
  if (nodes === undefined) return view;
  return {
    ...view,
    nodes: nodes.map((node) =>
      node.system.applications === undefined
        ? node
        : {
            ...node,
            system: {
              ...node.system,
              applications: (node.system.applications as { class: string }[]).filter((application) =>
                (FILIUS_APPLICATION_CLASSES as readonly string[]).includes(application.class),
              ),
            },
          },
    ),
  };
}

/** Whether Java's view has an own application installed. */
export function hasOwnApplications(view: unknown): boolean {
  return JSON.stringify(withoutOwnApplications(view)) !== JSON.stringify(view);
}