import path from "node:path";

function expandHome(value: string) {
	if (value === "~") return process.env.HOME ?? value;
	if (value.startsWith("~/")) return path.join(process.env.HOME ?? "~", value.slice(2));
	return value;
}

export function sessionStorageRoot(root: string, configuredSessionDir?: string) {
	return configuredSessionDir
		? path.resolve(expandHome(configuredSessionDir))
		: path.resolve(root, "sessions");
}