Add createNewWay-action, more work on GRB import theme, add import button

Logic/Osm/Actions/CreateNewWayAction.ts

@@ -0,0 +1,74 @@
+import {ChangeDescription} from "./ChangeDescription";
+import OsmChangeAction from "./OsmChangeAction";
+import {Changes} from "../Changes";
+import {Tag} from "../../Tags/Tag";
+import CreateNewNodeAction from "./CreateNewNodeAction";
+import {And} from "../../Tags/And";
+
+export default class CreateNewWayAction extends OsmChangeAction {
+    public newElementId: string = undefined
+    private readonly coordinates: ({ nodeId?: number, lat: number, lon: number })[];
+    private readonly tags: Tag[];
+    private readonly _options: { theme: string };
+
+
+    /***
+     * Creates a new way to upload to OSM
+     * @param tags: the tags to apply to the wya
+     * @param coordinates: the coordinates. Might have a nodeId, in this case, this node will be used
+     * @param options 
+     */
+    constructor(tags: Tag[], coordinates: ({ nodeId?: number, lat: number, lon: number })[], options: {
+        theme: string
+    }) {
+        super()
+        this.coordinates = coordinates;
+        this.tags = tags;
+        this._options = options;
+    }
+
+    protected async CreateChangeDescriptions(changes: Changes): Promise<ChangeDescription[]> {
+
+        const newElements: ChangeDescription[] = []
+
+        const pointIds: number[] = []
+        for (const coordinate of this.coordinates) {
+            if (coordinate.nodeId !== undefined) {
+                pointIds.push(coordinate.nodeId)
+                continue
+            }
+
+            const newPoint = new CreateNewNodeAction([], coordinate.lat, coordinate.lon, {
+                changeType: null,
+                theme: this._options.theme
+            })
+            await changes.applyAction(newPoint)
+            pointIds.push(newPoint.newElementIdNumber)
+        }
+
+        // We have all created (or reused) all the points!
+        // Time to create the actual way
+        
+        
+        const id = changes.getNewID()
+        
+        const newWay = <ChangeDescription> {
+            id,
+            type: "way",
+            meta:{
+                theme: this._options.theme,
+                changeType: "import"
+            },
+            tags: new And(this.tags).asChange({}),
+            changes: {
+                nodes: pointIds,
+                coordinates: this.coordinates.map(c => [c.lon, c.lat])
+            }
+        }
+        newElements.push(newWay)
+        this.newElementId = "way/"+id
+        return newElements
+    }
+
+
+}