import requests

def get_nutritional_info(food_items):
    """
    Fetch nutritional details dynamically using the Nutritionix API.
    """
    api_url = "https://trackapi.nutritionix.com/v2/natural/nutrients"
    app_id = "8af8f051"  # Nutritionix Application ID
    app_key = "706a5b83a4b567eb535dbc01100bb0f4"  # Nutritionix Application Key

    headers = {
        "x-app-id": app_id,
        "x-app-key": app_key,
        "Content-Type": "application/json"
    }

    nutrition_data = {}
    for food in food_items:
        payload = {"query": food}
        response = requests.post(api_url, json=payload, headers=headers)
        if response.status_code == 200:
            result = response.json()
            if "foods" in result and len(result["foods"]) > 0:
                food_details = result["foods"][0]
                nutrition_data[food] = {
                    "Energy (kcal)": food_details.get("nf_calories", 0),
                    "Protein (g)": food_details.get("nf_protein", 0),
                    "Carbs (g)": food_details.get("nf_total_carbohydrate", 0),
                    "Fiber (g)": food_details.get("nf_dietary_fiber", 0),
                    "Fat (g)": food_details.get("nf_total_fat", 0),
                    "Sugar (g)": food_details.get("nf_sugars", 0)
                }
        else:
            nutrition_data[food] = {"Error": f"Failed to fetch data for {food}"}
    return nutrition_data