Many improvemtns and fixes related to decoupling of svelte and rust on android.

src/lib/stores/library.ts

@@ -12,7 +12,8 @@ interface LibraryState {
   currentLibrary: Library | null;
   items: MediaItem[];
   currentItem: MediaItem | null;
-  isLoading: boolean;
+  /** Counter for concurrent loading operations. isLoading = loadingCount > 0 */
+  loadingCount: number;
   error: string | null;
   totalItems: number;
   searchQuery: string;
@@ -34,7 +35,7 @@ function createLibraryStore() {
     currentLibrary: null,
     items: [],
     currentItem: null,
-    isLoading: false,
+    loadingCount: 0,
     error: null,
     totalItems: 0,
     searchQuery: "",
@@ -50,7 +51,7 @@ function createLibraryStore() {
   console.log("✅ [LibraryStore] Cache logging enabled - you should see cache hit/miss logs below");
 
   async function loadLibraries() {
-    update((s) => ({ ...s, isLoading: true, error: null }));
+    update((s) => ({ ...s, loadingCount: s.loadingCount + 1, error: null }));
 
     try {
       const startTime = performance.now();
@@ -71,13 +72,13 @@ function createLibraryStore() {
       update((s) => ({
         ...s,
         libraries,
-        isLoading: false,
+        loadingCount: Math.max(0, s.loadingCount - 1),
       }));
 
       return libraries;
     } catch (error) {
       const message = error instanceof Error ? error.message : "Failed to load libraries";
-      update((s) => ({ ...s, isLoading: false, error: message }));
+      update((s) => ({ ...s, loadingCount: Math.max(0, s.loadingCount - 1), error: message }));
       throw error;
     }
   }
@@ -86,7 +87,7 @@ function createLibraryStore() {
     parentId: string,
     options: { startIndex?: number; limit?: number; genres?: string[] } = {}
   ) {
-    update((s) => ({ ...s, isLoading: true, error: null }));
+    update((s) => ({ ...s, loadingCount: s.loadingCount + 1, error: null }));
 
     try {
       const startTime = performance.now();
@@ -115,19 +116,19 @@ function createLibraryStore() {
         ...s,
         items: result.items,
         totalItems: result.totalRecordCount,
-        isLoading: false,
+        loadingCount: Math.max(0, s.loadingCount - 1),
       }));
 
       return result;
     } catch (error) {
       const message = error instanceof Error ? error.message : "Failed to load items";
-      update((s) => ({ ...s, isLoading: false, error: message }));
+      update((s) => ({ ...s, loadingCount: Math.max(0, s.loadingCount - 1), error: message }));
       throw error;
     }
   }
 
   async function loadItem(itemId: string) {
-    update((s) => ({ ...s, isLoading: true, error: null }));
+    update((s) => ({ ...s, loadingCount: s.loadingCount + 1, error: null }));
 
     try {
       const repo = auth.getRepository();
@@ -144,13 +145,13 @@ function createLibraryStore() {
       update((s) => ({
         ...s,
         currentItem: item,
-        isLoading: false,
+        loadingCount: Math.max(0, s.loadingCount - 1),
       }));
 
       return item;
     } catch (error) {
       const message = error instanceof Error ? error.message : "Failed to load item";
-      update((s) => ({ ...s, isLoading: false, error: message }));
+      update((s) => ({ ...s, loadingCount: Math.max(0, s.loadingCount - 1), error: message }));
       throw error;
     }
   }
@@ -161,7 +162,7 @@ function createLibraryStore() {
       return;
     }
 
-    update((s) => ({ ...s, isLoading: true, error: null, searchQuery: query }));
+    update((s) => ({ ...s, loadingCount: s.loadingCount + 1, error: null, searchQuery: query }));
 
     try {
       const repo = auth.getRepository();
@@ -179,13 +180,13 @@ function createLibraryStore() {
       update((s) => ({
         ...s,
         searchResults: result.items,
-        isLoading: false,
+        loadingCount: Math.max(0, s.loadingCount - 1),
       }));
 
       return result;
     } catch (error) {
       const message = error instanceof Error ? error.message : "Search failed";
-      update((s) => ({ ...s, isLoading: false, error: message }));
+      update((s) => ({ ...s, loadingCount: Math.max(0, s.loadingCount - 1), error: message }));
       throw error;
     }
   }
@@ -273,7 +274,7 @@ export const library = createLibraryStore();
 export const libraries = derived(library, ($lib) => $lib.libraries);
 export const currentLibrary = derived(library, ($lib) => $lib.currentLibrary);
 export const libraryItems = derived(library, ($lib) => $lib.items);
-export const isLibraryLoading = derived(library, ($lib) => $lib.isLoading);
+export const isLibraryLoading = derived(library, ($lib) => $lib.loadingCount > 0);
 export const libraryError = derived(library, ($lib) => $lib.error);
 export const viewMode = derived(library, ($lib) => $lib.viewMode);
 export const genres = derived(library, ($lib) => $lib.genres);