Refactor temporallast

projects/common/src/fm/services/senml-service.ts

@@ -2,6 +2,7 @@ import { Injectable } from '@angular/core';
 import { IJsonline } from '../models/json-line';
 import { ISenMLItem } from '../models/senml-item';
 import { IDataLayer } from '../models/data.layer';
+import { IItem } from '../models/item';
 
 @Injectable({
   providedIn: 'root',
@@ -10,13 +11,21 @@ export class SenmlService {
     constructor() {
     }
 
-    getSenMLItem(name:string,jsonLine:IJsonline): ISenMLItem {
+    getSenMLItem(layer:IDataLayer,jsonLine:IJsonline): ISenMLItem {
         if (jsonLine) {
           var senmlPack = jsonLine.data as ISenMLItem[];
-          var temp = senmlPack.filter((i) => i.u == name);
+          var temp = senmlPack.filter((i) => i.u == layer.indexKey);
           if (temp.length == 1) return temp[0];
           return null;
         }
     }
 
+    getFirstLayer(item:IItem):IDataLayer {
+        if(item && item.data && item.data["layers"] && item.data["layers"].length > 0 ) {
+            return item.data["layers"][0] as IDataLayer;
+        } else {
+            let retVal:IDataLayer = { name:"Soil moisture",index:0,scale:1,unit:"%",indexKey:"%vol" };
+            return retVal;
+        }
+    }
 }