const postHeaders = {
	mode: 'cors',
	credentials: 'same-origin',
	headers: {
		'Content-Type': 'application/json',
	},
};

function getQuery(data) {
	if (!data) {
		return '';
	}

	return `?${new URLSearchParams(data).toString()}`;
}

async function get(path, query = {}) {
	const res = await fetch(`/api${path}${getQuery(query)}`);
	const body = await res.json();

	if (res.ok) {
		return body;
	}

	throw new Error(body.message);
}

async function post(path, data, { query } = {}) {
	const res = await fetch(`/api${path}${getQuery(query)}`, {
		method: 'POST',
		body: JSON.stringify(data),
		...postHeaders,
	});

	if (res.status === 204) {
		return null;
	}

	const body = await res.json();

	if (res.ok) {
		return body;
	}

	throw new Error(body.statusMessage);
}

async function patch(path, data, { query } = {}) {
	const res = await fetch(`/api${path}${getQuery(query)}`, {
		method: 'PATCH',
		body: JSON.stringify(data),
		...postHeaders,
	});

	if (res.status === 204) {
		return null;
	}

	const body = await res.json();

	if (res.ok) {
		return body;
	}

	throw new Error(body.message);
}

async function del(path, { data, query } = {}) {
	const res = await fetch(`/api${path}${getQuery(query)}`, {
		method: 'DELETE',
		body: JSON.stringify(data),
		...postHeaders,
	});

	if (res.status === 204) {
		return null;
	}

	const body = await res.json();

	if (res.ok) {
		return body;
	}

	throw new Error(body.message);
}

export {
	get,
	post,
	patch,
	del,
	del as delete,
};