openmrs/openmrs-contrib-id

'use strict';
const log = require('log4js').addLogger('render-helpers');
const app = require('./app');
const conf = require('./conf');
const userNav = require('./user-nav');

// insert our own GLOBAL variables to be used in rendering
app.locals.defaultSidebar = conf.defaultSidebar;
app.locals.aboutHTML = conf.aboutHTML;
app.siteURL = conf.site.url;

//flash
app.use(function flash(req, res, next) {
  // Makes it easier to display flash messages,
  // which are created via req.flash() and erased each page render
  res.locals.flash = req.session ? req.flash() : null;
  return next();
});

//navLinks
const navLinks = (req, res, next) => {
  // Uses login state and privileges to generate the links to
  // include in the user navigation bar

  // directly skip, if no session exists
  if (!req.session) {
    return next();
  }

  const list = userNav.list;
  const links = [];
  res.locals.navLinks = links;

  if (req.session.user) {
    log.trace(`userNavLinks: current groups: ${req.session.user.groups.toString()}`);
  }

  // Build list of links to display
  list.forEach(link => {
    // determine if session has access to page

    // not logged in
    if (!req.session.user) {
      if (link.visibleLoggedOut) {
        links.push(link);
      }
      return;
    }

    // logged in
    if (link.requiredGroup) { // testing groups
      const inGroup = req.session.user.groups.indexOf(link.requiredGroup) > -1;
      if (inGroup) {
        links.push(link);
        return;
      }
    }

    if (link.visibleLoggedIn) {
      links.push(link);
      return;
    }
  });

  // Sort list by order specified
  links.sort((a, b) => a.order - b.order);
  return next();
};
app.use(navLinks);