fix: shopping list ingredient UUID parsing for prices/aisles; feat: interactive checkboxes with localStorage persistence

backend/app/api/shopping_list.py

@@ -10,10 +10,20 @@ from app.schemas import ShoppingListResponse, ShoppingListItem
 from datetime import date
 from typing import List
 from collections import defaultdict
+from uuid import UUID
 
 router = APIRouter()
 
 
+def _parse_uuid(value):
+    if not value:
+        return None
+    try:
+        return UUID(value) if isinstance(value, str) else value
+    except ValueError:
+        return None
+
+
 @router.get("", response_model=ShoppingListResponse)
 def get_shopping_list(db: Session = Depends(get_db)):
     profile = db.query(FamilyProfile).first()
@@ -51,8 +61,9 @@ def get_shopping_list(db: Session = Depends(get_db)):
         recipe = db.query(Recipe).filter(Recipe.id == item.recipe_id).first()
         if recipe and recipe.ingredients:
             for ing in recipe.ingredients:
-                if ing.get('ingredient_id'):
-                    all_ingredient_ids.add(ing['ingredient_id'])
+                ing_id = _parse_uuid(ing.get('ingredient_id'))
+                if ing_id:
+                    all_ingredient_ids.add(ing_id)
 
     if all_ingredient_ids:
         ingredients = db.query(Ingredient).filter(
@@ -71,19 +82,14 @@ def get_shopping_list(db: Session = Depends(get_db)):
 
     aggregated = defaultdict(lambda: {"quantity": 0.0, "unit": None, "name": ""})
 
-    # Build ingredient name lookup from IDs
-    ingredient_names = {}
-    if all_ingredient_ids:
-        ingredient_names = {str(i.id): i.name for i in ingredients}
-
     for plan_item in current_plan.items:
         recipe = db.query(Recipe).filter(Recipe.id == plan_item.recipe_id).first()
         if recipe and recipe.ingredients:
             for ing in recipe.ingredients:
-                ing_id = ing.get('ingredient_id')
+                ing_id = _parse_uuid(ing.get('ingredient_id'))
                 name = ing.get('name')
-                if not name and ing_id:
-                    name = ingredient_names.get(str(ing_id))
+                if not name and ing_id and ing_id in ingredient_map:
+                    name = ingredient_map[ing_id].name
                 if not name:
                     name = 'Unknown'
                 quantity = ing.get('quantity', 1.0) or 1.0
@@ -104,7 +110,7 @@ def get_shopping_list(db: Session = Depends(get_db)):
         in_pantry = ingredient_id and ingredient_id in pantry_items
 
         ing_obj = ingredient_map.get(ingredient_id) if ingredient_id else None
-        price = ing_obj.typical_price if ing_obj else None
+        price = float(ing_obj.typical_price) if ing_obj and ing_obj.typical_price is not None else None
 
         sale_price = None
         is_on_sale = False