Fix configuring search types & /config/types API when no plugin configured

- Test /config/types API when no plugin configured, only plugin configured
  and no content configured scenarios
- Do not throw null reference exception while configuring search types
  when no plugin configured
- Do not throw null reference exception on calling /config/types API
  when no plugin configured

Resolves bug introduced by #173

src/khoj/configure.py

@@ -73,6 +73,8 @@ def configure_search_types(config: FullConfig):
     # Extract core search types
     core_search_types = {e.name: e.value for e in SearchType}
     # Extract configured plugin search types
+    plugin_search_types = {}
+    if config.content_type.plugins:
         plugin_search_types = {plugin_type: plugin_type for plugin_type in config.content_type.plugins.keys()}
 
     # Dynamically generate search type enum by merging core search types with configured plugin search types

src/khoj/routers/api.py

@@ -29,11 +29,12 @@ def get_default_config_data():
 @api.get("/config/types", response_model=List[str])
 def get_config_types():
     """Get configured content types"""
+    configured_content_types = state.config.content_type.dict(exclude_none=True)
     return [
         search_type.value
         for search_type in SearchType
-        if any(search_type.value == ctype[0] and ctype[1] for ctype in state.config.content_type)
-        or search_type.name in state.config.content_type.plugins.keys()
+        if search_type.value in configured_content_types
+        or ("plugins" in configured_content_types and search_type.name in configured_content_types["plugins"])
     ]
 
 

tests/test_client.py

@@ -9,8 +9,9 @@ from fastapi.testclient import TestClient
 
 # Internal Packages
 from khoj.main import app
-from khoj.configure import configure_routes
-from khoj.utils.state import model
+from khoj.configure import configure_routes, configure_search_types
+from khoj.utils import state
+from khoj.utils.state import model, config
 from khoj.search_type import text_search, image_search
 from khoj.utils.rawconfig import ContentConfig, SearchConfig
 from khoj.processor.org_mode.org_to_jsonl import OrgToJsonl
@@ -86,6 +87,59 @@ def test_get_configured_types_via_api(client):
     assert response.json() == ["org", "image", "plugin1"]
 
 
+# ----------------------------------------------------------------------------------------------------
+def test_get_configured_types_with_only_plugin_content_config(content_config):
+    # Arrange
+    config.content_type = ContentConfig()
+    config.content_type.plugins = content_config.plugins
+    state.SearchType = configure_search_types(config)
+
+    configure_routes(app)
+    client = TestClient(app)
+
+    # Act
+    response = client.get(f"/api/config/types")
+
+    # Assert
+    assert response.status_code == 200
+    assert response.json() == ["plugin1"]
+
+
+# ----------------------------------------------------------------------------------------------------
+def test_get_configured_types_with_no_plugin_content_config(content_config):
+    # Arrange
+    config.content_type = content_config
+    config.content_type.plugins = None
+    state.SearchType = configure_search_types(config)
+
+    configure_routes(app)
+    client = TestClient(app)
+
+    # Act
+    response = client.get(f"/api/config/types")
+
+    # Assert
+    assert response.status_code == 200
+    assert "plugin1" not in response.json()
+
+
+# ----------------------------------------------------------------------------------------------------
+def test_get_configured_types_with_no_content_config():
+    # Arrange
+    config.content_type = ContentConfig()
+    state.SearchType = configure_search_types(config)
+
+    configure_routes(app)
+    client = TestClient(app)
+
+    # Act
+    response = client.get(f"/api/config/types")
+
+    # Assert
+    assert response.status_code == 200
+    assert response.json() == []
+
+
 # ----------------------------------------------------------------------------------------------------
 def test_image_search(client, content_config: ContentConfig, search_config: SearchConfig):
     # Arrange