1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980
import {  type IQueryEngine,  type QueryContext,  QueryEngine,} from "./engine/mod.ts";
/** * LDkit options and query engine context * * LDkit-specific options are: * - `engine` - a query engine to use for querying data sources * - `language` - a preferred language for literals * - `take` - a default number of results to take (limit of SELECT queries) * - `logQuery` - a function that will be called for each SPARQL query */export type Options = {  engine?: IQueryEngine;  language?: string;  take?: number;  logQuery?: (query: string) => void;} & Partial<QueryContext>;
const defaultOptions = {  engine: new QueryEngine(),  take: 1000,  logQuery: () => {},};
let globalOptions: Options = {};
/** * Sets global configuration {@link Options} for LDkit that will be used * by default in all queries, unless overridden in {@link Lens}. * * LDkit-specific options are: * - `engine` - a query engine to use for querying data sources * - `language` - a preferred language for literals * - `take` - a default number of results to take (limit of SELECT queries) * - `logQuery` - a function that will be called for each SPARQL query * * Default values for these options are: * ```typescript * const defaultOptions = { *   engine: new QueryEngine(), *   take: 1000, *   logQuery: () => {}, * }; * ``` * The default configuration uses built-in {@link QueryEngine}. Language is not set by default. * * @param options LDkit options and query engine context */export function setGlobalOptions(options: Options): void {  globalOptions = options;}
export function resolveOptions(options: Options = {}) {  return {    ...defaultOptions,    ...globalOptions,    ...options,  };}
export function resolveQueryContext(options: Options): QueryContext {  const { engine: _engine, language: _language, take: _take, ...context } =    options;
  if (context.source !== undefined && context.sources === undefined) {    context.sources = [context.source];    delete context.source;  }
  if (context.sources === undefined) {    throw new Error("No data source defined in Options");  }
  return context as QueryContext;}