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from fastapi import APIRouter, Depends, HTTPException, Body
from sqlalchemy.orm import Session
from datetime import datetime, timedelta
import json
from database import get_db
from schemas import GroceryListRead
from models import GroceryList, MenuPlan, Recipe, Ingredient
from services import pantry_service, ai_service
router = APIRouter(prefix="/api/grocery", tags=["grocery"])
ai_router = APIRouter(prefix="/api/ai", tags=["ai"])
@router.get("")
async def list_grocery_lists(db: Session = Depends(get_db)):
"""List all grocery lists."""
lists = db.query(GroceryList).order_by(GroceryList.generated_at.desc()).all()
return [GroceryListRead.from_orm(l) for l in lists]
@router.get("/current")
async def get_current_grocery_list(db: Session = Depends(get_db)):
"""Get grocery list for current week."""
today = datetime.utcnow().date()
monday = today - timedelta(days=today.weekday())
grocery_list = db.query(GroceryList).filter(GroceryList.generated_for == monday).first()
if not grocery_list:
raise HTTPException(status_code=404, detail="No grocery list for current week")
return GroceryListRead.from_orm(grocery_list)
@router.get("/{id}")
async def get_grocery_list(id: int, db: Session = Depends(get_db)):
"""Get a grocery list by ID."""
grocery_list = db.query(GroceryList).filter(GroceryList.id == id).first()
if not grocery_list:
raise HTTPException(status_code=404, detail="Grocery list not found")
return GroceryListRead.from_orm(grocery_list)
@router.post("/generate")
async def generate_grocery_list(db: Session = Depends(get_db)):
"""Generate a grocery list for the current week."""
# Get current week's Monday
today = datetime.utcnow().date()
monday = today - timedelta(days=today.weekday())
# Fetch current MenuPlan
menu_plan = db.query(MenuPlan).filter(MenuPlan.week_start == monday).first()
if not menu_plan:
raise HTTPException(status_code=404, detail="No menu plan for current week. Generate a menu first.")
# Parse the plan JSON
try:
plan_dict = json.loads(menu_plan.plan)
except json.JSONDecodeError:
raise HTTPException(status_code=500, detail="Invalid menu plan data")
# Collect all recipe IDs and fetch recipes
recipe_ids = set()
for day_meals in plan_dict.values():
if isinstance(day_meals, dict):
for recipe_id in day_meals.values():
if isinstance(recipe_id, int):
recipe_ids.add(recipe_id)
recipes = db.query(Recipe).filter(Recipe.id.in_(recipe_ids)).all() if recipe_ids else []
recipe_map = {r.id: r for r in recipes}
# Build menu_plan_for_ai
menu_plan_for_ai = {}
for day, day_meals in plan_dict.items():
menu_plan_for_ai[day] = {}
for meal_type, recipe_id in day_meals.items():
recipe = recipe_map.get(recipe_id)
if recipe:
try:
ingredients = json.loads(recipe.ingredients)
except (json.JSONDecodeError, TypeError):
ingredients = []
menu_plan_for_ai[day][meal_type] = {
"name": recipe.name,
"ingredients": ingredients,
}
# Build pantry context and generate grocery list
try:
pantry_context = pantry_service.build_pantry_context(db)
ai_result = await ai_service.generate_grocery_list(menu_plan_for_ai, pantry_context)
except ValueError as e:
raise HTTPException(status_code=503, detail=str(e))
except (ConnectionError, Exception) as e:
raise HTTPException(status_code=503, detail=f"Ollama service error: {str(e)}")
# Upsert GroceryList
existing_list = db.query(GroceryList).filter(GroceryList.generated_for == monday).first()
if existing_list:
existing_list.items = json.dumps(ai_result.get("items", []))
existing_list.total_estimate = ai_result.get("total_estimate", 0.0)
existing_list.notes = ai_result.get("shopping_notes", "")
existing_list.generated_at = datetime.utcnow()
grocery_list = existing_list
else:
grocery_list = GroceryList(
generated_for=monday,
items=json.dumps(ai_result.get("items", [])),
total_estimate=ai_result.get("total_estimate", 0.0),
notes=ai_result.get("shopping_notes", ""),
generated_at=datetime.utcnow(),
)
db.add(grocery_list)
db.commit()
db.refresh(grocery_list)
return {
"grocery_list": GroceryListRead.from_orm(grocery_list),
"items": ai_result.get("items", []),
"shopping_notes": ai_result.get("shopping_notes", ""),
}
@router.put("/{id}/purchased")
async def mark_purchased(id: int, db: Session = Depends(get_db)):
"""Mark a grocery list as purchased and update pantry."""
grocery_list = db.query(GroceryList).filter(GroceryList.id == id).first()
if not grocery_list:
raise HTTPException(status_code=404, detail="Grocery list not found")
# Mark as purchased
grocery_list.is_purchased = True
# Parse items
try:
items = json.loads(grocery_list.items)
except json.JSONDecodeError:
items = []
# Update pantry for each item
for item in items:
if isinstance(item, dict):
name = item.get("name")
quantity = item.get("quantity", 0)
unit = item.get("unit", "")
if name:
# Check if ingredient exists
existing_ingredient = db.query(Ingredient).filter(Ingredient.name == name).first()
if existing_ingredient:
existing_ingredient.quantity += quantity
existing_ingredient.updated_at = datetime.utcnow()
else:
# Create new ingredient
new_ingredient = Ingredient(
name=name,
quantity=quantity,
unit=unit,
category=item.get("store_section"),
)
db.add(new_ingredient)
db.commit()
db.refresh(grocery_list)
return GroceryListRead.from_orm(grocery_list)
@ai_router.post("/suggest-recipe")
async def suggest_recipe_endpoint(db: Session = Depends(get_db)):
"""Suggest a recipe based on current pantry."""
try:
context = pantry_service.build_pantry_context(db)
result = await ai_service.suggest_recipe(context)
return result
except ValueError as e:
raise HTTPException(status_code=503, detail=str(e))
except (ConnectionError, Exception) as e:
raise HTTPException(status_code=503, detail=f"Ollama service error: {str(e)}")
@ai_router.get("/models")
async def list_models():
"""List available Ollama models."""
models = await ai_service.get_available_models()
return {"models": models}
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