/**
 * Utils: Back-end
 */

import config from "../../config";

/**
 * Register a new user
 */
export const userRegister = async (email, password) => {
	return await requestApi("/users/register", "POST", { email, password });
};

/**
 * Login a new user
 */
export const userLogin = async (email, password) => {
	return await requestApi("/users/login", "POST", { email, password });
};

/**
 * userGet
 */
export const userGet = async (token) => {
	return await requestApi("/user", "POST", null, {
		Authorization: `Bearer ${token}`,
	});
};

/**
 * API request to call the backend
 */
export const requestApi = async (
	path = "",
	method = "GET",
	data = null,
	headers = {}
) => {
	// Check if API URL has been set
	if (!config?.domains?.api) {
		throw new Error(
			`Error: Missing API Domain – Please add the API domain from your serverless Express.js back-end to this front-end application.  You can do this in the "site" folder, in the "./config.js" file.  Instructions are listed there and in the documentation.`
		);
	}

	// Prepare URL
	if (!path.startsWith("/")) {
		path = `/${path}`;
	}
	const url = `${config.domains.api}${path}`;

	// Set headers
	headers = Object.assign({ "Content-Type": "application/json" }, headers);

	// Default options are marked with *
	const response = await fetch(url, {
		method: method.toUpperCase(),
		mode: "cors",
		cache: "no-cache",
		headers,
		body: data ? JSON.stringify(data) : null,
	});

	if (response.status < 200 || response.status >= 300) {
		const error = await response.json();
		throw new Error(error.error);
	}

	return await response.json();
};