import * as fs from "node:fs";
import * as posix from "node:path/posix";
import { prettify, htmlDocument } from "antihtml";
import { pages } from "./content/pages.js";
import type { Page } from "./content/types.js";
import { resolveRefs } from "./utils/resolve-refs.js";

function pageToHtml(page: Page) {
	if (!page.ref.startsWith("/")) {
		throw new Error(`ref "${page.ref}" for "${page.title}" is not absolute.`);
	}
	return htmlDocument(
		prettify(
			resolveRefs(
				page.content,
				posix.dirname(page.ref),
			)
		)
	)
}

const outDir = "build/web";
if (!fs.existsSync(outDir)) {
	fs.mkdirSync(outDir);
}

for (const page of pages) {
	const dirSep = page.ref.indexOf("/", 1);
	if (dirSep !== -1) {
		const dir = `${outDir}/${page.ref.slice(0, dirSep)}`;
		if (!fs.existsSync(dir)) {
			fs.mkdirSync(dir);
		}
	}
	console.log(`writing ${outDir}${page.ref}`);
	fs.writeFileSync(`${outDir}${page.ref}`, pageToHtml(page));
}

console.log(`writing ${outDir}/style.css`);
fs.writeFileSync(`${outDir}/style.css`, fs.readFileSync("public/style.css"));