fix: mock

backend/app/api/v1/images.py

@@ -65,7 +65,13 @@ async def upload_images(
 
     # trigger OCR tasks in-process background (non-blocking for API response)
     from app.workers.ocr_tasks import process_images_ocr_batch_async
-    pending_ids = [str(img.id) for img in results if img.ocr_status.value == "pending"]
+    pending_imgs = [img for img in results if img.ocr_status.value == "pending"]
+    for img in pending_imgs:
+        img.ocr_status = OcrStatus.processing
+    if pending_imgs:
+        await db.flush()
+        await db.commit()
+    pending_ids = [str(img.id) for img in pending_imgs]
     if pending_ids:
         asyncio.create_task(
             process_images_ocr_batch_async(
@@ -171,20 +177,25 @@ async def start_case_ocr(
     image_ids = payload.image_ids if payload else []
     if image_ids:
         images = await repo.list_by_ids_in_case(case_id, image_ids)
+        # Never submit images that are already processing: this prevents
+        # duplicate OCR tasks when users trigger OCR from multiple pages.
+        images = [img for img in images if img.ocr_status != OcrStatus.processing]
         # For explicit re-run, mark selected images as processing immediately
         # so frontend can reflect state transition without full page refresh.
         for img in images:
             img.ocr_status = OcrStatus.processing
-        await db.flush()
-        await db.commit()
+        if images:
+            await db.flush()
+            await db.commit()
     else:
         images = await repo.list_for_ocr(case_id, include_done=include_done)
         # Mark queued images as processing immediately, including when OCR is
         # triggered from workspace page, so UI can show progress right away.
         for img in images:
             img.ocr_status = OcrStatus.processing
-        await db.flush()
-        await db.commit()
+        if images:
+            await db.flush()
+            await db.commit()
 
     from app.workers.ocr_tasks import process_images_ocr_batch_async