Make search type comparison in document search more robust

src/khoj/routers/helpers.py

@@ -136,6 +136,7 @@ from khoj.utils.rawconfig import (
     LocationData,
     SearchResponse,
 )
+from khoj.utils.state import SearchType
 
 logger = logging.getLogger(__name__)
 
@@ -1245,7 +1246,7 @@ async def search_documents(
                     user if not should_limit_to_agent_knowledge else None,
                     f"{query} {filters_in_query}",
                     n=n,
-                    t=state.SearchType.All,
+                    t=SearchType.All,
                     r=True,
                     max_distance=d,
                     dedupe=False,
@@ -1337,7 +1338,7 @@ async def execute_search(
     user: KhojUser,
     q: str,
     n: Optional[int] = 5,
-    t: Optional[state.SearchType] = None,
+    t: Optional[SearchType] = None,
     r: Optional[bool] = False,
     max_distance: Optional[Union[float, None]] = None,
     dedupe: Optional[bool] = True,
@@ -1376,20 +1377,20 @@ async def execute_search(
         defiltered_query = filter.defilter(defiltered_query)
 
     encoded_asymmetric_query = None
-    if t != state.SearchType.Image:
+    if t.value != SearchType.Image.value:
         with timer("Encoding query took", logger=logger):
             search_model = await sync_to_async(get_default_search_model)()
             encoded_asymmetric_query = state.embeddings_model[search_model.name].embed_query(defiltered_query)
 
     with concurrent.futures.ThreadPoolExecutor() as executor:
-        if t in [
-            state.SearchType.All,
-            state.SearchType.Org,
-            state.SearchType.Markdown,
-            state.SearchType.Github,
-            state.SearchType.Notion,
-            state.SearchType.Plaintext,
-            state.SearchType.Pdf,
+        if t.value in [
+            SearchType.All.value,
+            SearchType.Org.value,
+            SearchType.Markdown.value,
+            SearchType.Github.value,
+            SearchType.Notion.value,
+            SearchType.Plaintext.value,
+            SearchType.Pdf.value,
         ]:
             # query markdown notes
             search_futures += [