/**
 * Integrations
 */
import solid from "@astrojs/solid-js";
import mdx from "@astrojs/mdx";
import sitemap from "@astrojs/sitemap";
import image from "@astrojs/image";

/**
 * Remark plugins
 */
import remarkGfm from "remark-gfm";
import remarkSmartypants from "remark-smartypants";

/**
 * Rehype plugins
 */
import rehypeSlug from "rehype-slug";
import rehypeAutolinkHeadings from "rehype-autolink-headings";

/**
 * Other required modules
 */
import { defineConfig } from "astro/config";
import { h } from "hastscript";
import { toString } from "hast-util-to-string";
import { escape } from "html-escaper";
import { DEFAULT_LANGUAGE } from "./src/config";
import languages from "./src/i18n/languages";

const createAnchorLabel = (heading: string) => {
	const node = h("span.anchor-label", escape(heading));
	if (node.properties) node.properties["is:raw"] = true;
	return node;
};

// https://astro.build/config
export default defineConfig({
	site: "https://yarkov.tech",
	integrations: [
		solid(),
		sitemap({
			i18n: {
				defaultLocale: DEFAULT_LANGUAGE,
				locales: Object.fromEntries(Object.keys(languages).map((key) => [key, key])),
			},
		}),
		image({
			serviceEntryPoint: "@astrojs/image/sharp",
		}),
		mdx({
			remarkPlugins: [remarkGfm, remarkSmartypants],
			rehypePlugins: [
				rehypeSlug,
				[
					rehypeAutolinkHeadings,
					{
						properties: {
							class: "anchor-link",
						},
						behavior: "after",
						group: ({ tagName }) =>
							h(`div.heading-wrapper.level-${tagName}`, {
								tabIndex: -1,
							}),
						content: (heading) => [
							h(
								`span.anchor-icon`,
								undefined,
								h(
									"svg",
									{
										width: 18,
										height: 18,
										version: 1.1,
										viewBox: "0 0 16 16",
										xlmns: "http://www.w3.org/2000/svg",
										ariaHidden: "true",
										"data-filter": "none",
									},
									h("path", {
										fillRule: "evenodd",
										fill: "currentcolor",
										d: "M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z",
									})
								)
							),
							createAnchorLabel(toString(heading)),
						],
					},
				],
			],
		}),
	],
	trailingSlash: "ignore",
	markdown: {
		syntaxHighlight: "prism",
	},
	vite: {
		ssr: {
			external: ["svgo"],
		},
	},
});