// Bundle uncloseai.js into a single IIFE for browser extension use.
// Resolves CDN imports (marked, highlight.js) to local node_modules.
// Output: public/uncloseai-bundle.js (CSP-safe, no ES module syntax)

import { build } from "esbuild";
import { createRequire } from "module";
import path from "path";
import { fileURLToPath } from "url";

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const ROOT = path.resolve(__dirname, "..");
const require = createRequire(import.meta.url);

// Plugin: resolve CDN URL imports to local node_modules packages
const cdnResolverPlugin = {
	name: "cdn-resolver",
	setup(build) {
		// marked: https://cdn.jsdelivr.net/npm/marked/lib/marked.esm.js
		build.onResolve(
			{ filter: /^https:\/\/cdn\.jsdelivr\.net\/npm\/marked/ },
			() => ({
				path: require.resolve("marked"),
			}),
		);

		// highlight.js: https://cdnjs.cloudflare.com/ajax/libs/highlight.js/
		build.onResolve(
			{ filter: /^https:\/\/cdnjs\.cloudflare\.com\/ajax\/libs\/highlight\.js/ },
			() => ({
				path: require.resolve("highlight.js"),
			}),
		);
	},
};

try {
	const result = await build({
		entryPoints: [path.join(ROOT, "public", "uncloseai.js")],
		bundle: true,
		format: "iife",
		minify: true,
		sourcemap: false,
		outfile: path.join(ROOT, "public", "uncloseai-bundle.js"),
		plugins: [cdnResolverPlugin],
		target: ["chrome120", "firefox120", "safari17"],
		logLevel: "info",
	});

	if (result.errors.length > 0) {
		console.error("Build failed with errors");
		process.exit(1);
	}
} catch (err) {
	console.error("Bundle failed:", err.message);
	process.exit(1);
}