Refactoring: move all code files into a src directory

src/Logic/FeatureSource/Actors/SaveFeatureSourceToLocalStorage.ts

@@ -0,0 +1,83 @@
+import { FeatureSource } from "../FeatureSource"
+import { Feature } from "geojson"
+import TileLocalStorage from "./TileLocalStorage"
+import { GeoOperations } from "../../GeoOperations"
+import FeaturePropertiesStore from "./FeaturePropertiesStore"
+import { UIEventSource } from "../../UIEventSource"
+import { Utils } from "../../../Utils"
+
+class SingleTileSaver {
+    private readonly _storage: UIEventSource<Feature[]>
+    private readonly _registeredIds = new Set<string>()
+    private readonly _featureProperties: FeaturePropertiesStore
+    private readonly _isDirty = new UIEventSource(false)
+    constructor(
+        storage: UIEventSource<Feature[]> & { flush: () => void },
+        featureProperties: FeaturePropertiesStore
+    ) {
+        this._storage = storage
+        this._featureProperties = featureProperties
+        this._isDirty.stabilized(1000).addCallbackD((isDirty) => {
+            if (!isDirty) {
+                return
+            }
+            // 'isDirty' is set when tags of some object have changed
+            storage.flush()
+            this._isDirty.setData(false)
+        })
+    }
+
+    public saveFeatures(features: Feature[]) {
+        if (Utils.sameList(features, this._storage.data)) {
+            return
+        }
+        for (const feature of features) {
+            const id = feature.properties.id
+            if (this._registeredIds.has(id)) {
+                continue
+            }
+            this._featureProperties.getStore(id)?.addCallbackAndRunD(() => {
+                this._isDirty.setData(true)
+            })
+            this._registeredIds.add(id)
+        }
+
+        this._storage.setData(features)
+    }
+}
+
+/***
+ * Saves all the features that are passed in to localstorage, so they can be retrieved on the next run
+ *
+ * The data is saved in a tiled way on a fixed zoomlevel and is retrievable per layer.
+ *
+ * Also see the sibling class
+ */
+export default class SaveFeatureSourceToLocalStorage {
+    constructor(
+        backend: string,
+        layername: string,
+        zoomlevel: number,
+        features: FeatureSource,
+        featureProperties: FeaturePropertiesStore,
+        maxCacheAge: number
+    ) {
+        const storage = TileLocalStorage.construct<Feature[]>(backend, layername, maxCacheAge)
+        const singleTileSavers: Map<number, SingleTileSaver> = new Map<number, SingleTileSaver>()
+        features.features.addCallbackAndRunD((features) => {
+            const sliced = GeoOperations.slice(zoomlevel, features)
+
+            sliced.forEach((features, tileIndex) => {
+                let tileSaver = singleTileSavers.get(tileIndex)
+                if (tileSaver === undefined) {
+                    const src = storage.getTileSource(tileIndex)
+                    tileSaver = new SingleTileSaver(src, featureProperties)
+                    singleTileSavers.set(tileIndex, tileSaver)
+                }
+                // Don't cache not-uploaded features yet - they'll be cached when the receive their id
+                features = features.filter((f) => !f.properties.id.match(/(node|way)\/-[0-9]+/))
+                tileSaver.saveFeatures(features)
+            })
+        })
+    }
+}