fix: separate resource previews from downloads

src/App.tsx

@@ -308,7 +308,7 @@ export function OneNoteApplication({
     }
   };
 
-  const loadSelectedResource = useCallback(
+  const previewSelectedResource = useCallback(
     async (resourceId: string): Promise<OneNoteResourcePayloadDto> => {
       const client = activeClient.current;
       if (!client || state.phase !== 'loaded') {
@@ -317,7 +317,7 @@ export function OneNoteApplication({
           'The local parser session is no longer available.'
         );
       }
-      const response = await client.getResource(
+      const response = await client.getResourcePreview(
         state.source.sessionId,
         resourceId,
         state.source.kind === 'onepkg' ? selectedSectionId : undefined
@@ -335,7 +335,25 @@ export function OneNoteApplication({
 
   const downloadSelectedResource = useCallback(
     async (resourceId: string, suggestedName?: string): Promise<void> => {
-      const resource = await loadSelectedResource(resourceId);
+      const client = activeClient.current;
+      if (!client || state.phase !== 'loaded') {
+        throw new WorkerClientError(
+          'session-not-available',
+          'The local parser session is no longer available.'
+        );
+      }
+      const response = await client.getResourceDownload(
+        state.source.sessionId,
+        resourceId,
+        state.source.kind === 'onepkg' ? selectedSectionId : undefined
+      );
+      if (response.type === 'failure') {
+        throw new WorkerClientError(
+          response.error.code,
+          response.error.message
+        );
+      }
+      const resource = response.resource;
       const filename = safeDownloadFilename(
         resource.filename ??
           suggestedName ??
@@ -343,7 +361,7 @@ export function OneNoteApplication({
       );
       downloadBrowserFile(resource.bytes, resource.mediaType, filename);
     },
-    [loadSelectedResource]
+    [selectedSectionId, state]
   );
 
   const exportLoadedSource = useCallback(
@@ -464,7 +482,7 @@ export function OneNoteApplication({
               error={
                 pageState.phase === 'error' ? pageState.message : undefined
               }
-              loadResource={loadSelectedResource}
+              previewResource={previewSelectedResource}
               downloadResource={downloadSelectedResource}
             />
           </div>