more file formats && list add in edit

web/src/lib/util/gpx_util.ts

@@ -1,8 +1,10 @@
 import { Trail } from "$lib/models/trail";
 import { Waypoint } from "$lib/models/waypoint";
-import { JSDOM } from "jsdom"
+import { kml, tcx } from "$lib/vendor/toGeoJSON/toGeoJSON"
+import GeoJsonToGpx from "$lib/vendor/geoJSONToGPX"
 
-export function gpx2trail(gpx: string) {
+export async function gpx2trail(gpx: string) {
+    const JSDOM = (await import("jsdom")).JSDOM
     const xml = new JSDOM(gpx).window.document
     const trail = new Trail("");
 
@@ -15,7 +17,7 @@ export function gpx2trail(gpx: string) {
         trail.description = desc[0].textContent ?? "";
     }
 
-    const el = xml.getElementsByTagName('wpt');    
+    const el = xml.getElementsByTagName('wpt');
     for (let i = 0; i < el.length; i++) {
         const wp = new Waypoint(parseFloat(el[i].getAttribute('lat')!), parseFloat(el[i].getAttribute('lon')!));
 
@@ -29,10 +31,45 @@ export function gpx2trail(gpx: string) {
     }
 
     const startPoint = xml.getElementsByTagName("trk")[0].getElementsByTagName("trkseg")[0].getElementsByTagName("trkpt")[0];
-    if(startPoint) {
+    if (startPoint) {
         trail.lat = parseFloat(startPoint.getAttribute('lat')!)
         trail.lon = parseFloat(startPoint.getAttribute('lon')!)
-    } 
+    }
 
     return trail
+}
+
+export function fromKML(kmlData: string) {
+    const geojson = kml(new DOMParser().parseFromString(kmlData, "text/xml"))
+    const options = {
+        metadata: {
+            name: '',
+            author: {
+                name: '',
+                link: {
+                    href: ''
+                }
+            }
+        }
+    }
+    const gpx = GeoJsonToGpx(geojson as any, options)
+
+    return new XMLSerializer().serializeToString(gpx)
+}
+
+export function fromTCX(tcxData: string) {
+    const geojson = tcx(new DOMParser().parseFromString(tcxData, "text/xml"))
+    const options = {
+        metadata: {
+            name: '',
+            author: {
+                name: '',
+                link: {
+                    href: ''
+                }
+            }
+        }
+    }    
+    const gpx = GeoJsonToGpx(geojson as any, options)    
+    return new XMLSerializer().serializeToString(gpx)
 }