create irradiance composite graph

client/models/energy_datum.js

@@ -1,6 +1,9 @@
 import extend from 'extend';
 import moment from 'moment-timezone';
 
+import DateRange from './../../shared/utils/date_range';
+import EnergyDataApi from 'api/energy_data';
+
 const NAME = 'EnergyDatum';
 const COLLECTION_DEFAULTS = {
   indices: ['day']
@@ -29,16 +32,58 @@ class EnergyDatum {
     return moment.tz(energy_datum.data.day * 1000, energy_datum.house.data.timezone).format('YYYY-MM-DD');
   }
 
-  get consumption_to_s(){
+  get irradiance(){
+    var energy_datum = this;
+    return Math.round(energy_datum.data.irradiance);
+  }
+
+  get consumption(){
     var energy_datum = this;
     return Math.round(energy_datum.data.consumption);
   }
 
-  get production_to_s(){
+  get production(){
     var energy_datum = this;
     return Math.round(energy_datum.data.production);
   }
 
+  // This method will ensure the energy data for the passed houses while:
+  // 1. Making only 1 API.
+  // 2. Only opening 1 house LokiJs DB at a time.
+  static ensureEnergyDataForHouses(houses, date_range){
+    var new_ranges = {}, params = [];
+    houses.forEach((house)=>{
+      var query_ranges = DateRange.addRange(date_range, house.data.energy_datum_ranges || []);
+      if (query_ranges.gaps_filled.length > 0) {
+        params.push({dates: query_ranges.gaps_filled, house_id: house.data.id});
+        new_ranges[house.data.id] = query_ranges.new_ranges;
+      }
+    });
+
+    // already have all the data we need.
+    if (params.length === 0) return Promise.resolve();
+
+    // get all data needed for all houses in one call.
+    return new Promise((fnResolve, fnReject)=>{
+      EnergyDataApi.index({houses: params})
+        .then((energy_data)=>{
+          energy_data = energy_data.reduce((grouped, energy_datum)=>{
+            grouped[energy_datum.house_id] = grouped[energy_datum.house_id] || [];
+            grouped[energy_datum.house_id].push(energy_datum);
+            return grouped;
+          }, {});
+          houses.reduce((promise, house)=>{
+            return promise.then(()=>{
+              if (!energy_data[house.data.id]) return Promise.resolve();
+              return house.saveEnergyData(energy_data[house.data.id], new_ranges[house.data.id])
+            }).then(()=>{
+              house.closeDb();
+            });
+          }, Promise.resolve()).then(fnResolve);
+        });
+    })
+  }
+
 }
 
 EnergyDatum.NAME = NAME;