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import { Parser, Store } from "https://esm.sh/n3@1.16.2";
import {  type Context,  DataFactory,  quadsToGraph,  type RDF,} from "../library/rdf.ts";import { ldkit, schema, xsd } from "../library/namespaces/mod.ts";
export type Equals<A, B> = A extends B ? (B extends A ? true : false) : false;
const X_NAMESPACE = "http://x/";
const dataFactory = new DataFactory();
// export const x = (s: string) => `${X_NAMESPACE}${s}`;
export const x = new Proxy(  {},  {    get: function (_target, prop, _receiver) {      return `${X_NAMESPACE}${String(prop)}`;    },  },) as Record<string, string>;
// Helper data factory wrapper compatible with N3export const DF = () => {  const df = new DataFactory({    blankNodePrefix: "b",  });
  return {    namedNode: df.namedNode.bind(df),    blankNode: df.blankNode.bind(df),    literal: df.literal.bind(df),    variable: df.variable.bind(df),    quad: df.quad.bind(df),    defaultGraph: df.defaultGraph.bind(df),  };};
const escapePseudoVariables = (turtle: string) => {  return turtle.replace(/\?/g, "_:");};
const convertPseudoVariable = <T extends RDF.Term>(term: T) => {  const match = term.value.match(/v[0-9]+/);  if (term.termType === "BlankNode" && match) {    return dataFactory.variable(match[0]);  }  return term;};
const convertPseudoVariables = (q: RDF.Quad) => {  return dataFactory.quad(    convertPseudoVariable(q.subject),    convertPseudoVariable(q.predicate),    convertPseudoVariable(q.object),    dataFactory.defaultGraph(),  );};
export const ttl = (turtle: string) => {  const prefixedTurtle = `    @prefix x: <${X_NAMESPACE}> .    @prefix ${ldkit.$prefix} <${ldkit.$iri}> .    @prefix ${xsd.$prefix} <${xsd.$iri}> .    @prefix ${schema.$prefix} <${schema.$iri}> .      ${turtle}`;
  const escapedTurtle = escapePseudoVariables(prefixedTurtle);  const df = DF();  const escapedQuads = new Parser({    factory: df,  }).parse(escapedTurtle);  const quads = escapedQuads.map(convertPseudoVariables);  return quads;};
export const createGraph = (turtle: string) => {  const quads = ttl(turtle);  return quadsToGraph(quads);};
export const createStore = () =>  new Store(undefined, {    factory: DF(),  });
export const createStoreContext = (store: Store, context?: Context) => ({  ...context,  sources: [store],} as Context);
export const emptyStore = (store: Store) => {  const stream = store.removeMatches(null, null, null, null);  return new Promise((resolve) => {    stream.on("end", resolve);  });};