# app/main.py
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.models.recipe import RecipeRequest, RecipeResponse
from app.services.recipe_generator import RecipeGenerator

app = FastAPI(title="Recipe Generation API")

# Configure CORS for Vercel frontend
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],  # Update this with your Vercel app URL in production
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Initialize recipe generator service
recipe_generator = RecipeGenerator()

@app.get("/")
async def root():
    return {"message": "Recipe Generation API is running"}

@app.post("/generate-recipe", response_model=RecipeResponse)
async def generate_recipe(request: RecipeRequest):
    recipe = await recipe_generator.generate(request.ingredients)
    return RecipeResponse(
        title=recipe["title"],
        ingredients=recipe["ingredients"],
        instructions=recipe["instructions"]
    )