interface Params {
	s?: string,
}

let params: Params = Object.fromEntries(
	new URLSearchParams(location.hash.substr(1))
		.entries());

function setParams() {
	let formatter = new URLSearchParams;
	if (params.s) {
		formatter.set("s", params.s);
	}
	history.replaceState(
		null,
		document.title,
		`#${formatter}`);
}

export function getGame(): string | undefined {
	return params.s;
}

export function setGame(g: string): void {
	params.s = g;
	setParams();
}