'use strict';
// Highlight.JS: https://highlightjs.org/

async function initializeHighlightJS() {
	const languageRE = /\blanguage-([a-zA-Z0-9_\-]+)\b/gi;
	const noLanguageRE = /\bno-language\b/gi;
	const languages = [
		"apache",
		"asciidoc",
		"autohotkey",
		"bash",
		"basic",
		"c",
		"cmake",
		"cpp",
		"csharp",
		"css",
		"d",
		"diff",
		"gcode",
		"glsl",
		"go",
		"gradle",
		"graphql",
		"http",
		"ini",
		"java",
		"javascript",
		"json",
		"kotlin",
		"latex",
		"less",
		"llvm",
		"lua",
		"makefile",
		"markdown",
		"nginx",
		"objectivec",
		"oxygene",
		"perl",
		"php",
		"php-template",
		"plaintext",
		"protobuf",
		"python",
		"python-repl",
		"r",
		"ruby",
		"rust",
		"scss",
		"shell",
		"sql",
		"swift",
		"typescript",
		"vbnet",
		"wasm",
		"xml",
		"yaml",
	];

	console.log("highlight.JS: Loading...");
	let highlightJS = await import("./highlightjs/highlight.mjs");
	window.highlightJS = highlightJS.default;

	console.log("highlight.JS: Configuring...");
	window.highlightJS.configure({
		"noHighlightRe": noLanguageRE,
		"languageDetectRe": languageRE,
		"cssSelector": "code.block[class*=\"language\"]",
		"throwUnescapedHTML": true,
	});

	// Import all languages.
	let langs = [];
	for (let lang of languages) {
		console.log(`highlight.JS: Importing language definition for '${lang}'...`);
		langs.push(import(`./highlightjs/languages/${lang}.min.js`).then((mod) => {
			window.highlightJS.registerLanguage(lang, mod.default);
			console.log(`highlight.JS: Imported language definition for '${lang}'.`);
		}));
	}
	await Promise.allSettled(langs)

	// Highlight everything.
	function highlightAllCode() {
		console.log(`highlight.JS: Applying highlighting all valid code blocks...`);
		window.highlightJS.highlightAll();
	};
	if (document.readyState === "complete"
		|| document.readyState === "loaded"
		|| document.readyState === "interactive") {
		highlightAllCode();
	} else {
		document.addEventListener('DOMContentLoaded', () => {
			highlightAllCode();
		});
	}
}
initializeHighlightJS();