Support uploading device statuses in batches (nightscout#6147)

* Support uploading device statuses in batches
* Correctly report batch insertion results

Author: sulkaharo

lib/server/devicestatus.js

@@ -5,34 +5,51 @@ var find_options = require('./query');
 
 function storage (collection, ctx) {
 
-  function create (obj, fn) {
-
-    // Normalize all dates to UTC
-    const d = moment(obj.created_at).isValid() ? moment.parseZone(obj.created_at) : moment();
-    obj.created_at = d.toISOString();
-    obj.utcOffset = d.utcOffset();
-
-    api().insertOne(obj, function(err, results) {
-      if (err !== null && err.message) {
-        console.log('Error inserting the device status object', err.message);
-        fn(err.message, null);
-        return;
-      }
+  function create (statuses, fn) {
 
-      if (!err) {
+    if (!Array.isArray(statuses)) { statuses = [statuses]; }
 
-        if (!obj._id) obj._id = results.insertedIds[0]._id;
+    const r = [];
+    let errorOccurred = false;
 
-        ctx.bus.emit('data-update', {
-          type: 'devicestatus'
-          , op: 'update'
-          , changes: ctx.ddata.processRawDataForRuntime([obj])
-        });
-      }
+    for (let i = 0; i < statuses.length; i++) {
 
-      fn(null, results.ops);
-      ctx.bus.emit('data-received');
-    });
+      const obj = statuses[i];
+
+      if (errorOccurred) return;
+
+      // Normalize all dates to UTC
+      const d = moment(obj.created_at).isValid() ? moment.parseZone(obj.created_at) : moment();
+      obj.created_at = d.toISOString();
+      obj.utcOffset = d.utcOffset();
+
+      api().insertOne(obj, function(err, results) {
+        if (err !== null && err.message) {
+          console.log('Error inserting the device status object', err.message);
+          errorOccurred = true;
+          fn(err.message, null);
+          return;
+        }
+
+        if (!err) {
+
+          if (!obj._id) obj._id = results.insertedIds[0]._id;
+          r.push(obj);
+
+          ctx.bus.emit('data-update', {
+            type: 'devicestatus'
+            , op: 'update'
+            , changes: ctx.ddata.processRawDataForRuntime([obj])
+          });
+
+          // Last object! Return results
+          if (i == statuses.length - 1) {
+            fn(null, r);
+            ctx.bus.emit('data-received');
+          }
+        }
+      });
+    };
   }
 
   function last (fn) {
@@ -109,7 +126,10 @@ function storage (collection, ctx) {
   api.aggregate = require('./aggregate')({}, api);
   api.indexedFields = [
     'created_at'
-    
+
+
+
+  
     , 'NSCLIENT_ID'
   ];
   return api;