import assert from "assert";
import { readFile } from "fs/promises";
import { readFileSync } from "fs";

/**
 * Fetch an environment variable
 */
export function env(variable: string, throwIfNotFound = true) {
	let value = process.env[variable];
	if (throwIfNotFound) {
		assert(value !== undefined);
	}
	return <string>value;
}

/**
 * Fetch a secret from a file
 */
export async function secret(path: string) {
	return (await readFile(path)).toString().trim();
}

export function secretSync(path: string) {
	return readFileSync(path).toString().trim();
}