functional with immer

gpx/package-lock.json

@@ -9,6 +9,7 @@
             "version": "1.0.0",
             "dependencies": {
                 "fast-xml-parser": "^4.3.6",
+                "immer": "^10.1.1",
                 "ts-node": "^10.9.2"
             },
             "devDependencies": {
@@ -1958,6 +1959,15 @@
                 "node": ">=10.17.0"
             }
         },
+        "node_modules/immer": {
+            "version": "10.1.1",
+            "resolved": "https://registry.npmjs.org/immer/-/immer-10.1.1.tgz",
+            "integrity": "sha512-s2MPrmjovJcoMaHtx6K11Ra7oD05NT97w1IC5zpMkT6Atjr7H8LjaDd81iIxUYpMKSRRNMJE703M1Fhr/TctHw==",
+            "funding": {
+                "type": "opencollective",
+                "url": "https://opencollective.com/immer"
+            }
+        },
         "node_modules/import-local": {
             "version": "3.1.0",
             "resolved": "https://registry.npmjs.org/import-local/-/import-local-3.1.0.tgz",

gpx/package.json

@@ -12,6 +12,7 @@
     "private": true,
     "dependencies": {
         "fast-xml-parser": "^4.3.6",
+        "immer": "^10.1.1",
         "ts-node": "^10.9.2"
     },
     "scripts": {

gpx/src/gpx.ts

@@ -1,4 +1,5 @@
 import { Coordinates, GPXFileAttributes, GPXFileType, Link, Metadata, TrackExtensions, TrackPointExtensions, TrackPointType, TrackSegmentType, TrackType, WaypointType } from "./types";
+import { immerable } from "immer";
 
 function cloneJSON<T>(obj: T): T {
     if (obj === null || typeof obj !== 'object') {
@@ -120,6 +121,8 @@ export class GPXFiles extends GPXTreeNode<GPXFile> {
 
 // A class that represents a GPX file
 export class GPXFile extends GPXTreeNode<Track>{
+    [immerable] = true;
+
     attributes: GPXFileAttributes;
     metadata: Metadata;
     wpt: Waypoint[];
@@ -176,6 +179,8 @@ export class GPXFile extends GPXTreeNode<Track>{
 
 // A class that represents a Track in a GPX file
 export class Track extends GPXTreeNode<TrackSegment> {
+    [immerable] = true;
+
     name?: string;
     cmt?: string;
     desc?: string;
@@ -256,6 +261,8 @@ export class Track extends GPXTreeNode<TrackSegment> {
 
 // A class that represents a TrackSegment in a GPX file
 export class TrackSegment extends GPXTreeLeaf {
+    [immerable] = true;
+
     trkpt: TrackPoint[];
 
     constructor(segment?: TrackSegmentType | TrackSegment) {
@@ -432,6 +439,8 @@ export class TrackSegment extends GPXTreeLeaf {
 };
 
 export class TrackPoint {
+    [immerable] = true;
+
     attributes: Coordinates;
     ele?: number;
     time?: Date;

website/package-lock.json

@@ -14,11 +14,11 @@
                 "clsx": "^2.1.0",
                 "dexie": "^4.0.4",
                 "gpx": "file:../gpx",
+                "immer": "^10.1.1",
                 "lucide-svelte": "^0.365.0",
                 "mapbox-gl": "^3.2.0",
                 "mode-watcher": "^0.3.0",
                 "sortablejs": "^1.15.2",
-                "structurajs": "^0.12.0",
                 "svelte-i18n": "^4.0.0",
                 "svelte-sonner": "^0.3.22",
                 "tailwind-merge": "^2.2.2",
@@ -3363,6 +3363,15 @@
                 "node": ">= 4"
             }
         },
+        "node_modules/immer": {
+            "version": "10.1.1",
+            "resolved": "https://registry.npmjs.org/immer/-/immer-10.1.1.tgz",
+            "integrity": "sha512-s2MPrmjovJcoMaHtx6K11Ra7oD05NT97w1IC5zpMkT6Atjr7H8LjaDd81iIxUYpMKSRRNMJE703M1Fhr/TctHw==",
+            "funding": {
+                "type": "opencollective",
+                "url": "https://opencollective.com/immer"
+            }
+        },
         "node_modules/import-fresh": {
             "version": "3.3.0",
             "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.0.tgz",
@@ -5132,11 +5141,6 @@
                 "url": "https://github.com/sponsors/sindresorhus"
             }
         },
-        "node_modules/structurajs": {
-            "version": "0.12.0",
-            "resolved": "https://registry.npmjs.org/structurajs/-/structurajs-0.12.0.tgz",
-            "integrity": "sha512-vadDl3zCv6OM2dXfzelUH3RLhNu9pmIEZU7zS0jIgMR3BDKIk44fDd/X9KK9LE27MMU+/aw3ibBTQQgBH0zfiw=="
-        },
         "node_modules/subtag": {
             "version": "0.5.0",
             "resolved": "https://registry.npmjs.org/subtag/-/subtag-0.5.0.tgz",

website/package.json

@@ -47,11 +47,11 @@
         "clsx": "^2.1.0",
         "dexie": "^4.0.4",
         "gpx": "file:../gpx",
+        "immer": "^10.1.1",
         "lucide-svelte": "^0.365.0",
         "mapbox-gl": "^3.2.0",
         "mode-watcher": "^0.3.0",
         "sortablejs": "^1.15.2",
-        "structurajs": "^0.12.0",
         "svelte-i18n": "^4.0.0",
         "svelte-sonner": "^0.3.22",
         "tailwind-merge": "^2.2.2",

website/src/lib/db.ts

@@ -1,15 +1,18 @@
 import Dexie, { liveQuery } from 'dexie';
 import { GPXFile } from 'gpx';
-import { type FreezedObject, type Patch, produceWithPatches, applyPatches } from 'structurajs';
+import { enableMapSet, enablePatches, produceWithPatches, applyPatches, type Patch } from 'immer';
 import { writable, get, derived, type Readable, type Writable } from 'svelte/store';
 import { fileOrder, selectedFiles } from './stores';
 import { mode } from 'mode-watcher';
 import { defaultBasemap, defaultBasemapTree, defaultOverlayTree, defaultOverlays } from './assets/layers';
 
+enableMapSet();
+enablePatches();
+
 class Database extends Dexie {
 
     fileids!: Dexie.Table<string, string>;
-    files!: Dexie.Table<FreezedObject<GPXFile>, string>;
+    files!: Dexie.Table<GPXFile, string>;
     patches!: Dexie.Table<{ patch: Patch[], inversePatch: Patch[], index: number }, number>;
     settings!: Dexie.Table<any, string>;
 
@@ -103,7 +106,7 @@ function dexieStore<T>(querier: () => T | Promise<T>, initial?: T): Readable<T>
 }
 
 // Wrap Dexie live queries in a Svelte store to avoid triggering the query for every subscriber, also takes care of the conversion to a GPXFile object
-function dexieGPXFileStore(querier: () => FreezedObject<GPXFile> | undefined | Promise<FreezedObject<GPXFile> | undefined>): Readable<GPXFile> {
+function dexieGPXFileStore(querier: () => GPXFile | undefined | Promise<GPXFile | undefined>): Readable<GPXFile> {
     let store = writable<GPXFile>(undefined);
     liveQuery(querier).subscribe(value => {
         if (value !== undefined) {
@@ -118,8 +121,8 @@ function dexieGPXFileStore(querier: () => FreezedObject<GPXFile> | undefined | P
 }
 
 // Add/update the files to the database
-function updateDbFiles(files: (FreezedObject<GPXFile> | undefined)[], add: boolean = false) {
-    let filteredFiles = files.filter(file => file !== undefined) as FreezedObject<GPXFile>[];
+function updateDbFiles(files: (GPXFile | undefined)[], add: boolean = false) {
+    let filteredFiles = files.filter(file => file !== undefined) as GPXFile[];
     let fileIds = filteredFiles.map(file => file._data.id);
     if (add) {
         return db.transaction('rw', db.fileids, db.files, async () => {
@@ -140,7 +143,7 @@ function deleteDbFiles(fileIds: string[]) {
 }
 
 // Commit the changes to the file state to the database
-function commitFileStateChange(newFileState: ReadonlyMap<string, FreezedObject<GPXFile>>, patch: Patch[]) {
+function commitFileStateChange(newFileState: ReadonlyMap<string, GPXFile>, patch: Patch[]) {
     if (newFileState.size > fileState.size) {
         return updateDbFiles(getChangedFileIds(patch).map((fileId) => newFileState.get(fileId)), true);
     } else if (newFileState.size === fileState.size) {
@@ -238,15 +241,12 @@ function applyPatch(patch: Patch[]) {
 }
 
 // Get the file ids of the files that have changed in the patch
-function getChangedFileIds(patch: Patch[]) {
-    let changedFileIds = [];
+function getChangedFileIds(patch: Patch[]): string[] {
+    let changedFileIds = new Set();
     for (let p of patch) {
-        let fileId = p.p?.toString();
-        if (fileId) {
-            changedFileIds.push(fileId);
+        changedFileIds.add(p.path[0]);
     }
-    }
-    return changedFileIds;
+    return Array.from(changedFileIds);
 }
 
 // Generate unique file ids, different from the ones in the database