* Allow users to set DE_NORMALIZE_DATES=false to have the REST API …

…denormalize UTC dates to zoned ISO dates in the API (nightscout#4826)

lib/api/devicestatus/index.js

@@ -1,17 +1,18 @@
 'use strict';
 
-var consts = require('../../constants');
+const consts = require('../../constants');
+const moment = require('moment');
 
-function configure (app, wares, ctx) {
-  var express = require('express'),
-    api = express.Router( );
+function configure (app, wares, ctx, env) {
+  var express = require('express')
+    , api = express.Router();
 
   // invoke common middleware
   api.use(wares.sendJSONStatus);
   // text body types get handled as raw buffer stream
-  api.use(wares.bodyParser.raw( ));
+  api.use(wares.bodyParser.raw());
   // json body types get handled as parsed json
-  api.use(wares.bodyParser.json( ));
+  api.use(wares.bodyParser.json());
   // also support url-encoded content-type
   api.use(wares.bodyParser.urlencoded({ extended: true }));
 
@@ -23,7 +24,21 @@ function configure (app, wares, ctx) {
     if (!q.count) {
       q.count = 10;
     }
-    ctx.devicestatus.list(q, function (err, results) {
+
+    ctx.devicestatus.list(q, function(err, results) {
+
+      // Support date de-normalization for older clients
+      if (env.settings.deNormalizeDates) {
+        results.forEach(function(e) {
+          // eslint-disable-next-line no-prototype-builtins
+          if (e.created_at && e.hasOwnProperty('utcOffset')) {
+            const d = moment(e.created_at).utcOffset(e.utcOffset);
+            e.created_at = d.toISOString(true);
+            delete e.utcOffset;
+          }
+        });
+      }
+
       return res.json(results);
     });
   });
@@ -32,7 +47,7 @@ function configure (app, wares, ctx) {
 
     function doPost (req, res) {
       var obj = req.body;
-      ctx.devicestatus.create(obj, function (err, created) {
+      ctx.devicestatus.create(obj, function(err, created) {
         if (err) {
           res.sendJSONStatus(res, consts.HTTP_INTERNAL_ERROR, 'Mongo Error', err);
         } else {
@@ -48,7 +63,7 @@ function configure (app, wares, ctx) {
      * Delete devicestatus.  The query logic works the same way as find/list.  This
      * endpoint uses same search logic to remove records from the database.
      */
-    function delete_records(req, res, next) {
+    function delete_records (req, res, next) {
       var query = req.query;
       if (!query.count) {
         query.count = 10
@@ -91,12 +106,11 @@ function configure (app, wares, ctx) {
     api.delete('/devicestatus/', ctx.authorization.isPermitted('api:devicestatus:delete'), delete_records);
   }
 
-  if (app.enabled('api') || true /*TODO: auth disabled for quick UI testing...*/) {
+  if (app.enabled('api') || true /*TODO: auth disabled for quick UI testing...*/ ) {
     config_authed(app, api, wares, ctx);
   }
 
   return api;
 }
 
 module.exports = configure;
-