More work on splitting roads, WIP; refactoring tests

Logic/FeatureSource/Actors/SaveTileToLocalStorageActor.ts

@@ -0,0 +1,32 @@
+/***
+ * Saves all the features that are passed in to localstorage, so they can be retrieved on the next run
+ *
+ * Technically, more an Actor then a featuresource, but it fits more neatly this ay
+ */
+import {FeatureSourceForLayer} from "../FeatureSource";
+
+export default class SaveTileToLocalStorageActor {
+    public static readonly storageKey: string = "cached-features";
+
+    constructor(source: FeatureSourceForLayer, tileIndex: number) {
+        source.features.addCallbackAndRunD(features => {
+            const key = `${SaveTileToLocalStorageActor.storageKey}-${source.layer.layerDef.id}-${tileIndex}`
+            const now = new Date().getTime()
+
+            if (features.length == 0) {
+                return;
+            }
+
+            try {
+                localStorage.setItem(key, JSON.stringify(features));
+                localStorage.setItem(key + "-time", JSON.stringify(now))
+            } catch (e) {
+                console.warn("Could not save the features to local storage:", e)
+            }
+        })
+
+
+    }
+
+
+}