fix(api): stabilize palette and preset endpoints

Made-with: Cursor

src/controllers/palette.py

@@ -17,9 +17,9 @@ async def list_palettes(request):
 @controller.get('/<id>')
 async def get_palette(request, id):
     """Get a specific palette by ID."""
-    palette = palettes.read(id)
-    if palette:
-        return json.dumps({"colors": palette, "id": str(id)}), 200, {'Content-Type': 'application/json'}
+    if str(id) in palettes:
+        palette = palettes.read(id)
+        return json.dumps({"colors": palette or [], "id": str(id)}), 200, {'Content-Type': 'application/json'}
     return json.dumps({"error": "Palette not found"}), 404
 
 @controller.post('')
@@ -30,11 +30,8 @@ async def create_palette(request):
         colors = data.get("colors", None)
         # Palette no longer needs a name; only colors are stored.
         palette_id = palettes.create("", colors)
-        palette = palettes.read(palette_id) or {}
-        # Include the ID in the response payload so clients can link it.
-        palette_with_id = {"id": str(palette_id)}
-        palette_with_id.update(palette)
-        return json.dumps(palette_with_id), 201, {'Content-Type': 'application/json'}
+        created_colors = palettes.read(palette_id) or []
+        return json.dumps({"id": str(palette_id), "colors": created_colors}), 201, {'Content-Type': 'application/json'}
     except Exception as e:
         return json.dumps({"error": str(e)}), 400
 
@@ -47,10 +44,8 @@ async def update_palette(request, id):
         if "name" in data:
             data.pop("name", None)
         if palettes.update(id, data):
-            palette = palettes.read(id) or {}
-            palette_with_id = {"id": str(id)}
-            palette_with_id.update(palette)
-            return json.dumps(palette_with_id), 200, {'Content-Type': 'application/json'}
+            colors = palettes.read(id) or []
+            return json.dumps({"id": str(id), "colors": colors}), 200, {'Content-Type': 'application/json'}
         return json.dumps({"error": "Palette not found"}), 404
     except Exception as e:
         return json.dumps({"error": str(e)}), 400

src/controllers/preset.py

@@ -36,11 +36,11 @@ async def list_presets(request, session):
     }
     return json.dumps(scoped), 200, {'Content-Type': 'application/json'}
 
-@controller.get('/<id>')
+@controller.get('/<preset_id>')
 @with_session
-async def get_preset(request, id, session):
+async def get_preset(request, session, preset_id):
     """Get a specific preset by ID (current profile only)."""
-    preset = presets.read(id)
+    preset = presets.read(preset_id)
     current_profile_id = get_current_profile_id(session)
     if preset and str(preset.get("profile_id")) == str(current_profile_id):
         return json.dumps(preset), 200, {'Content-Type': 'application/json'}
@@ -70,12 +70,12 @@ async def create_preset(request, session):
     except Exception as e:
         return json.dumps({"error": str(e)}), 400
 
-@controller.put('/<id>')
+@controller.put('/<preset_id>')
 @with_session
-async def update_preset(request, id, session):
+async def update_preset(request, session, preset_id):
     """Update an existing preset (current profile only)."""
     try:
-        preset = presets.read(id)
+        preset = presets.read(preset_id)
         current_profile_id = get_current_profile_id(session)
         if not preset or str(preset.get("profile_id")) != str(current_profile_id):
             return json.dumps({"error": "Preset not found"}), 404
@@ -87,21 +87,36 @@ async def update_preset(request, id, session):
             data = {}
         data = dict(data)
         data["profile_id"] = str(current_profile_id)
-        if presets.update(id, data):
-            return json.dumps(presets.read(id)), 200, {'Content-Type': 'application/json'}
+        if presets.update(preset_id, data):
+            return json.dumps(presets.read(preset_id)), 200, {'Content-Type': 'application/json'}
         return json.dumps({"error": "Preset not found"}), 404
     except Exception as e:
         return json.dumps({"error": str(e)}), 400
 
-@controller.delete('/<id>')
+@controller.delete('/<preset_id>')
 @with_session
-async def delete_preset(request, id, session):
+async def delete_preset(request, *args, **kwargs):
     """Delete a preset (current profile only)."""
-    preset = presets.read(id)
+    # Be tolerant of wrapper/arg-order variations.
+    session = None
+    preset_id = None
+    if len(args) > 0:
+        session = args[0]
+    if len(args) > 1:
+        preset_id = args[1]
+    if 'session' in kwargs and kwargs.get('session') is not None:
+        session = kwargs.get('session')
+    if 'preset_id' in kwargs and kwargs.get('preset_id') is not None:
+        preset_id = kwargs.get('preset_id')
+    if 'id' in kwargs and kwargs.get('id') is not None and preset_id is None:
+        preset_id = kwargs.get('id')
+    if preset_id is None:
+        return json.dumps({"error": "Preset ID is required"}), 400
+    preset = presets.read(preset_id)
     current_profile_id = get_current_profile_id(session)
     if not preset or str(preset.get("profile_id")) != str(current_profile_id):
         return json.dumps({"error": "Preset not found"}), 404
-    if presets.delete(id):
+    if presets.delete(preset_id):
         return json.dumps({"message": "Preset deleted successfully"}), 200
     return json.dumps({"error": "Preset not found"}), 404