From c5db6e2c1c45a41bdd4a85990c0d0b883915b3c3 Mon Sep 17 00:00:00 2001
From: Kevin Kub <github@kekub.de>
Date: Wed, 21 Oct 2020 08:43:33 +0200
Subject: [PATCH]

---
 incidence.js | 109 +++++++++++++++++++++++++--------------------------
 1 file changed, 53 insertions(+), 56 deletions(-)

diff --git a/incidence.js b/incidence.js
index da3e41d..40df359 100644
--- a/incidence.js
+++ b/incidence.js
@@ -1,72 +1,69 @@
 // Licence: Robert Koch-Institut (RKI), dl-de/by-2-0
 const apiUrl = (location) => `https://services7.arcgis.com/mOBPykOjAyBO2ZKk/arcgis/rest/services/RKI_Landkreisdaten/FeatureServer/0/query?where=1%3D1&outFields=GEN,cases7_per_100k&geometry=${location.longitude.toFixed(3)}%2C${location.latitude.toFixed(3)}&geometryType=esriGeometryPoint&inSR=4326&spatialRel=esriSpatialRelWithin&returnGeometry=false&outSR=4326&f=json`
+const apiUrlStates = 'https://services7.arcgis.com/mOBPykOjAyBO2ZKk/arcgis/rest/services/Coronaf%E4lle_in_den_Bundesl%E4ndern/FeatureServer/0/query?where=1%3D1&outFields=cases7_bl_per_100k&returnGeometry=false&outSR=4326&f=json'
 
-let widget = await createWidget()
+const widget = await createWidget()
 if (!config.runsInWidget) {
   await widget.presentSmall()
 }
-
 Script.setWidget(widget)
 Script.complete()
 
 async function createWidget(items) {
-  let location
-  
-  if(args.widgetParameter) {
-    
-    const fixedCoordinates = args.widgetParameter.split(",").map(parseFloat)
-    
-    location = {
-      latitude: fixedCoordinates[0],
-      longitude: fixedCoordinates[1]
-    }
-    
-  } else {
-    
-    Location.setAccuracyToThreeKilometers()
-    location = await Location.current()
-    
-  }
-  
-  const data = await new Request(apiUrl(location)).loadJSON()
-  
-  if(!data || !data.features || !data.features.length) {
-    const errorList = new ListWidget()
-    errorList.addText("Keine Ergebnisse für den aktuellen Ort gefunden.")
-    return errorList
-  }
-  
-  const attr = data.features[0].attributes
-  const incidence = attr.cases7_per_100k.toFixed(1)
-  const cityName = attr.GEN
+  const data = await getData()
   const list = new ListWidget()
-  
-  if(Device.isUsingDarkAppearance()){
-    const gradient = new LinearGradient()
-    gradient.locations = [0, 1]
-    gradient.colors = [
-      new Color("111111"),
-      new Color("222222")
-    ]
-    list.backgroundGradient = gradient
-  }
-  
   const header = list.addText("🦠 Inzidenz".toUpperCase())
   header.font = Font.mediumSystemFont(13)
-  
-  list.addSpacer()
-  
-  const label = list.addText(incidence+"")
-  label.font = Font.boldSystemFont(24)
-  label.textColor = Color.green()
-  
-  if(incidence >= 50) {
-    label.textColor = Color.red()
-  } else if(incidence >= 35) {
-    label.textColor = Color.orange()
+  if(data) {
+    if(!data.shouldCache) {
+      list.addSpacer(6)
+      const loadingIndicator = list.addText("Ort wird ermittelt...".toUpperCase())
+      loadingIndicator.font = Font.mediumSystemFont(13)
+      loadingIndicator.textOpacity = 0.5
+    }
+    list.addSpacer()
+    const label = list.addText(data.incidence+"")
+    label.font = Font.boldSystemFont(24)
+    label.textColor = data.incidence >= 50 ? Color.red() : data.incidence >= 35 ? Color.orange() : Color.green()
+    list.addText(data.areaName)
+    if(data.shouldCache) {
+      list.refreshAfterDate = new Date(Date.now() + 60*60*1000)
+    }
+  } else {
+    list.addSpacer()
+    list.addText("Daten nicht verfügbar")
   }
-  
-  list.addText(cityName)
-  
   return list
+}
+
+async function getData() {
+   try {
+    const location = await getLocation()
+    if(location) {
+      let data = await new Request(apiUrl(location)).loadJSON()
+      const attr = data.features[0].attributes
+      return { incidence: attr.cases7_per_100k.toFixed(1), areaName: attr.GEN, shouldCache: true };
+    } else {
+      let data = await new Request(apiUrlStates).loadJSON()
+      const incidencePerState = data.features.map((f) => f.attributes.cases7_bl_per_100k)
+      const averageIncidence = incidencePerState.reduce((a, b) => a + b) / incidencePerState.length
+      return { incidence: averageIncidence.toFixed(1), areaName: "Deutschland", shouldCache: false };
+    }
+   } catch(e) {
+    return null
+   }
+}
+
+async function getLocation() {
+  try {
+    if(args.widgetParameter) {
+      const fixedCoordinates = args.widgetParameter.split(",").map(parseFloat)
+      return { latitude: fixedCoordinates[0], longitude: fixedCoordinates[1] }
+    } else {
+      Location.setAccuracyToThreeKilometers()
+      return await Location.current()
+    }
+  } catch(e) {
+    return null;
+  }
 }
\ No newline at end of file