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import Prism, { loadLanguages } from "../deps/prism.ts";import { merge } from "../core/utils.ts";
import type { Page, Site } from "../core.ts";import type { Element } from "../deps/dom.ts";
export interface Options {  /** The list of extensions this plugin applies to */  extensions: string[];
  /** The css selector to apply prism */  cssSelector: string;
  /** The list of programing languages to load */  languages: string[];}
// Default optionsexport const defaults: Options = {  extensions: [".html"],  cssSelector: "pre code",  languages: [],};
/** A plugin to syntax-highlight code using the prism library */export default function (userOptions?: Partial<Options>) {  const options = merge(defaults, userOptions);
  return (site: Site) => {    site.addEventListener(      "beforeBuild",      () => loadLanguages(options.languages),    );    site.process(options.extensions, prism);
    function prism(page: Page) {      page.document!.querySelectorAll(options.cssSelector!)        .forEach((element) => Prism.highlightElement(element as Element));    }  };}