@fontoxml/fontoxml-development-tools/src/modules/editor/dev-cms/configureFontoSessionMiddleware.js

Development tools for Fonto.

function createSession(editSessionToken, scope) {
	return {
		editSessionToken,
		user: {
			id: 'anonymous',
			displayName: 'Anonymous',
			...(scope && scope.user),
		},
	};
}

export default function configureFontoSessionMiddleware() {
	const sessionByEditSessionToken = Object.create(null);

	function ensureFontoSession(scope) {
		const editSessionToken = scope.editSessionToken;
		let session = sessionByEditSessionToken[editSessionToken];
		if (!session) {
			session = sessionByEditSessionToken[editSessionToken] =
				createSession(editSessionToken, scope);
		}

		return session;
	}

	function hasFontoSession(scope) {
		return !!sessionByEditSessionToken[scope.editSessionToken];
	}

	function getFontoSession(editSessionToken) {
		let session = sessionByEditSessionToken[editSessionToken];
		if (!session) {
			console.warn(`\nNo session for edit session ${editSessionToken}.`);
			session = createSession(editSessionToken);
		}

		return session;
	}

	return (req, _res, next) => {
		req.ensureFontoSession = ensureFontoSession;
		req.getFontoSession = getFontoSession;
		req.hasFontoSession = hasFontoSession;

		next();
	};
}