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import { createLens, createNamespace, type Options } from "ldkit";import { DataFactory, N3 } from "ldkit/rdf";import { QueryEngine as Comunica } from "npm:@comunica/query-sparql-rdfjs@2.5.2";
// Create a custom namespaceconst ns = createNamespace(  {    "iri": "http://ns/",    "prefix": "ns",    "terms": [      "name",      "movie",    ],  } as const,);
// Create a schemaconst DirectorSchema = {  name: ns.name,  movies: {    "@id": ns.movie,    "@array": true,  },} as const;
// Create in memory data store and options for query engineconst store = new N3.Store(undefined, {  factory: new DataFactory(),});const options: Options = {  engine: new Comunica(),  sources: [store],};
// Create a resource using the data schema and context aboveconst Directors = createLens(DirectorSchema, options);
// Add a director with a list of some moviesawait Directors.insert({  $id: "https://Quentin_Tarantino",  name: "Quentin Tarantino",  movies: ["Pulp Fiction", "Reservoir Dogs"],});
// Add a movie to the list of moviesawait Directors.update({  $id: "https://Quentin_Tarantino",  movies: {    $add: ["Kill Bill", "Kill Bill 2"],  },});
// Remove a movie from the list of moviesawait Directors.update({  $id: "https://Quentin_Tarantino",  movies: {    $remove: ["Reservoir Dogs"],  },});
// Print the list of moviesconst tarantino = await Directors.findByIri("https://Quentin_Tarantino");console.log("Tarantino movies", tarantino?.movies);
// Add another director with a list of some moviesawait Directors.insert({  $id: "https://David_Fincher",  name: "David Fincher",  movies: ["Fight Club", "The Social Network"],});
// Modify the list of movies for both directorsawait Directors.update({  $id: "https://Quentin_Tarantino",  movies: {    $set: [], // Remove all movies  },}, {  $id: "https://David_Fincher",  movies: {    $add: ["The Curious Case of Benjamin Button"],  },});
// Print the list of movies of the other directorconst fincher = await Directors.findByIri("https://David_Fincher");console.log("Fincher movies", fincher?.movies);