Overleaf/services/track-changes/app/js/UpdateTrimmer.js

/* eslint-disable
    camelcase,
    handle-callback-err,
    no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * DS103: Rewrite code to no longer use __guard__
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
let UpdateTrimmer;
const MongoManager = require("./MongoManager");
const WebApiManager = require("./WebApiManager");
const logger = require("logger-sharelatex");

module.exports = (UpdateTrimmer = {
	shouldTrimUpdates(project_id, callback) {
		if (callback == null) { callback = function(error, shouldTrim) {}; }
		return MongoManager.getProjectMetaData(project_id, function(error, metadata) {
			if (error != null) { return callback(error); }
			if (metadata != null ? metadata.preserveHistory : undefined) {
				return callback(null, false);
			} else {
				return WebApiManager.getProjectDetails(project_id, function(error, details) {
					if (error != null) { return callback(error); }
					logger.log({project_id, details}, "got details");
					if (__guard__(details != null ? details.features : undefined, x => x.versioning)) {
						return MongoManager.setProjectMetaData(project_id, {preserveHistory: true}, function(error) {
							if (error != null) { return callback(error); }
							return MongoManager.upgradeHistory(project_id, function(error) {
								if (error != null) { return callback(error); }
								return callback(null, false);
							});
						});
					} else {
						return callback(null, true);
					}
				});
			}
		});
	}
});


function __guard__(value, transform) {
  return (typeof value !== 'undefined' && value !== null) ? transform(value) : undefined;
}