import { writeFile } from "node:fs/promises";
import { join } from "node:path";
import { chromium } from "@playwright/test";

/** CI's capability-free container provides isolation; runtime flag policy stays unchanged. */
export async function testChromiumExecutable(root: string): Promise<string> {
	const executable = chromium.executablePath();
	if (process.env["CI"] !== "true") return executable;
	if (!process.env["PI_EXT_E2E_ROOT"])
		throw new Error("Chrome CI requires the isolated E2E runner");
	const wrapper = join(root, "chromium-ci");
	const quoted = `'${executable.replaceAll("'", "'\\''")}'`;
	await writeFile(wrapper, `#!/bin/sh\nexec ${quoted} --no-sandbox "$@"\n`, {
		mode: 0o700,
	});
	return wrapper;
}