Refacotring: move themeConfig into models

Models/ThemeConfig/SourceConfig.ts

@@ -0,0 +1,42 @@
+import {TagsFilter} from "../../Logic/Tags/TagsFilter";
+
+export default class SourceConfig {
+
+    osmTags?: TagsFilter;
+    overpassScript?: string;
+    geojsonSource?: string;
+    geojsonZoomLevel?: number;
+    isOsmCacheLayer: boolean;
+
+    constructor(params: {
+        osmTags?: TagsFilter,
+        overpassScript?: string,
+        geojsonSource?: string,
+        isOsmCache?: boolean,
+        geojsonSourceLevel?: number
+    }, context?: string) {
+
+        let defined = 0;
+        if (params.osmTags) {
+            defined++;
+        }
+        if (params.overpassScript) {
+            defined++;
+        }
+        if (params.geojsonSource) {
+            defined++;
+        }
+        if (defined == 0) {
+            throw `Source: nothing correct defined in the source (in ${context}) (the params are ${JSON.stringify(params)})`
+        }
+        if (params.isOsmCache && params.geojsonSource == undefined) {
+            console.error(params)
+            throw `Source said it is a OSM-cached layer, but didn't define the actual source of the cache (in context ${context})`
+        }
+        this.osmTags = params.osmTags;
+        this.overpassScript = params.overpassScript;
+        this.geojsonSource = params.geojsonSource;
+        this.geojsonZoomLevel = params.geojsonSourceLevel;
+        this.isOsmCacheLayer = params.isOsmCache ?? false;
+    }
+}