Function composeDatabases

frontend/src/react/stores/app/database.ts:51–64

(
    databases: Database[]
  )

  // projects and guarantees `instanceResource` is populated (with a fallback)
  // so consumers can read engine / instance off any database.
  const composeDatabases = async (
    databases: Database[]
  ): Promise<Database[]> => {
    await get().batchFetchProjects(databases.map((db) => db.project));
    for (const database of databases) {
      if (!database.instanceResource) {
        database.instanceResource = {
          ...unknownInstanceResource(),
          name: instanceResourceNameFromDatabase(database.name),
        };
      }
    }
    return databases;
  };

  // Compose then immutably merge into the by-name cache; returns the composed
  // list so callers can hand it straight back to their consumers.