import * as fs from "node:fs";
import * as path from "node:path";

function isNodeExecutableName(execPath: string): boolean {
	const basename = path.basename(execPath).toLowerCase();
	return basename === "node" || basename === "node.exe" || basename === "nodejs" || basename === "nodejs.exe";
}

function canUseNodeExecutable(execPath: string): boolean {
	try {
		fs.accessSync(execPath, process.platform === "win32" ? fs.constants.F_OK : fs.constants.X_OK);
		return true;
	} catch {
		return false;
	}
}

export function resolveNodeExecutable(execPath = process.execPath): string {
	if (isNodeExecutableName(execPath) && canUseNodeExecutable(execPath)) return execPath;
	return process.platform === "win32" ? "node.exe" : "node";
}