let _portalNode: null | HTMLElement = null;

export const portalNode = () => {
	if (!_portalNode) {
		if (typeof document === 'undefined') {
			throw new Error(
				'Tried to call an API that only works in the browser from outside the browser',
			);
		}

		_portalNode = document.createElement('div');
		_portalNode.style.position = 'absolute';
		_portalNode.style.top = '0px';
		_portalNode.style.left = '0px';
		_portalNode.style.right = '0px';
		_portalNode.style.bottom = '0px';
		_portalNode.style.width = '100%';
		_portalNode.style.height = '100%';
		_portalNode.style.display = 'flex';
		_portalNode.style.flexDirection = 'column';

		const containerNode = document.createElement('div');
		containerNode.style.position = 'fixed';
		containerNode.style.top = -999999 + 'px';
		containerNode.appendChild(_portalNode);

		document.body.appendChild(containerNode);
	}

	return _portalNode;
};