// api.js - small backend client for the static frontend

const BASE_URL = `${window.location.origin}/backend/index.php`;

async function request(action, payload = null) {
	const options = payload
		? {
				method: "POST",
				headers: { "Content-Type": "application/json" },
				body: JSON.stringify(payload),
			}
		: {};
	const response = await fetch(`${BASE_URL}?action=${action}`, options);
	const data = await response.json();

	if (!response.ok || !data.ok) {
		throw new Error(data.error || "Backend request failed.");
	}

	return data;
}

function get(action, params = {}) {
	const query = new URLSearchParams({ action, ...params });
	return fetch(`${BASE_URL}?${query.toString()}`)
		.then((response) => response.json().then((data) => ({ response, data })))
		.then(({ response, data }) => {
			if (!response.ok || !data.ok) {
				throw new Error(data.error || "Backend request failed.");
			}
			return data;
		});
}

export function createLobby(lobbyName) {
	return request("createLobby", { lobbyName });
}

export function joinLobby(lobbyName, playerName) {
	return request("joinLobby", { lobbyName, playerName });
}

export function leaveLobby(lobbyName, playerName) {
	return request("leaveLobby", { lobbyName, playerName });
}

export function submitScore(payload) {
	return request("submitScore", payload);
}

export function getLeaderboard(lobbyName) {
	return get("getLeaderboard", { lobbyName });
}

export function getLobby(lobbyName) {
	return get("getLobby", { lobbyName });
}