import { readFileSync } from "node:fs";
import { join } from "node:path";
import type { Hono } from "hono";
import { describeFile } from "../describe/describe.ts";
import { html } from "./html.ts";
import { cacheFor, type PageContext, page } from "./layout.ts";
import { renderParagraph, renderSiteMarkdown } from "./markdown.ts";

const SITE_DIR = join(import.meta.dir, "../../docs/site");

/** §21.10: `/docs` and `/support` are Markdown files in Kepr's repo, rendered once at startup. */
export function registerDocsPages(app: Hono, ctx: PageContext): void {
	for (const name of ["docs", "support"]) {
		const source = readFileSync(join(SITE_DIR, `${name}.md`), "utf8");
		const intro = describeFile(`${name}.md`, source);
		const description = intro ? renderParagraph(intro, { repo: "", dir: "", at: null }).text : "";
		const body = html`<article class="site-doc markdown">${renderSiteMarkdown(source)}</article>`;
		app.get(`/${name}`, (c) => {
			cacheFor(c, false);
			return c.html(page(ctx, { title: name, description, path: `/${name}`, body }));
		});
	}
}