overleaf/services/track-changes/app/coffee/RestoreManager.js

/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
let RestoreManager;
const DocumentUpdaterManager = require("./DocumentUpdaterManager");
const DiffManager = require("./DiffManager");
const logger = require("logger-sharelatex");

module.exports = (RestoreManager = {
	restoreToBeforeVersion(project_id, doc_id, version, user_id, callback) {
		if (callback == null) { callback = function(error) {}; }
		logger.log({project_id, doc_id, version, user_id}, "restoring document");
		return DiffManager.getDocumentBeforeVersion(project_id, doc_id, version, function(error, content) {
			if (error != null) { return callback(error); }
			return DocumentUpdaterManager.setDocument(project_id, doc_id, content, user_id, function(error) {
				if (error != null) { return callback(error); }
				return callback();
			});
		});
	}
});