Add search previews on the map

src/Logic/Geocoding/GeocodingFeatureSource.ts

@@ -0,0 +1,41 @@
+import { GeoCodeResult } from "./GeocodingProvider"
+import { Store } from "../UIEventSource"
+import { FeatureSource } from "../FeatureSource/FeatureSource"
+import { Feature, Geometry } from "geojson"
+
+export default class GeocodingFeatureSource implements FeatureSource {
+    public features: Store<Feature<Geometry, Record<string, string>>[]>
+
+    constructor(provider: Store<GeoCodeResult[]>) {
+        this.features = provider.mapD(geocoded => {
+            const features: Feature[] = []
+
+            for (const gc of geocoded) {
+                if (gc.lat === undefined || gc.lon === undefined) {
+                    continue
+                }
+
+                features.push({
+                    type: "Feature",
+                    properties: {
+                        id: "search_result_" + gc.osm_type + "/" + gc.osm_id,
+                        category: gc.category,
+                        description: gc.description,
+                        display_name: gc.display_name,
+                        osm_id: gc.osm_type + "/" + gc.osm_id,
+                        osm_key: gc.feature?.properties?.osm_key,
+                        osm_value: gc.feature?.properties?.osm_value
+                    },
+                    geometry: {
+                        type: "Point",
+                        coordinates: [gc.lon, gc.lat]
+                    }
+                })
+
+            }
+
+            return features
+        })
+    }
+
+}