import os
import base64
import requests
from dotenv import load_dotenv
from swarms.models import Anthropic, OpenAIChat
from swarms.structs import Flow

# Load environment variables
load_dotenv()
openai_api_key = os.getenv("OPENAI_API_KEY")

# Define prompts for various tasks
MEAL_PLAN_PROMPT = "Based on the following user preferences: dietary restrictions as vegetarian, preferred cuisines as Italian and Indian, a total caloric intake of around 2000 calories per day, and an exclusion of legumes, create a detailed weekly meal plan. Include a variety of meals for breakfast, lunch, dinner, and optional snacks."
IMAGE_ANALYSIS_PROMPT = "Identify the items in this fridge, including their quantities and condition."

# Function to encode image to base64
def encode_image(image_path):
    with open(image_path, "rb") as image_file:
        return base64.b64encode(image_file.read()).decode('utf-8')

# Initialize Language Model (LLM)
llm = OpenAIChat(
    openai_api_key=openai_api_key,
    max_tokens=3000,
)

# Function to handle vision tasks
def create_vision_agent(image_path):
    base64_image = encode_image(image_path)
    headers = {
        "Content-Type": "application/json",
        "Authorization": f"Bearer {openai_api_key}"
    }
    payload = {
        "model": "gpt-4-vision-preview",
        "messages": [
            {
                "role": "user",
                "content": [
                    {"type": "text", "text": IMAGE_ANALYSIS_PROMPT},
                    {"type": "image_url", "image_url": {"url": f"data:image/jpeg;base64,{base64_image}"}}
                ]
            }
        ],
        "max_tokens": 300
    }
    response = requests.post("https://api.openai.com/v1/chat/completions", headers=headers, json=payload)
    return response.json()

# Function to generate an integrated shopping list considering meal plan and fridge contents
def generate_integrated_shopping_list(meal_plan_output, image_analysis, user_preferences):
    # Prepare the prompt for the LLM
    fridge_contents = image_analysis['choices'][0]['message']['content']
    prompt = (f"Based on this meal plan: {meal_plan_output}, "
              f"and the following items in the fridge: {fridge_contents}, "
              f"considering dietary preferences as vegetarian with a preference for Italian and Indian cuisines, "
              f"generate a comprehensive shopping list that includes only the items needed.")

    # Send the prompt to the LLM and return the response
    response = llm(prompt)
    return response  # assuming the response is a string

# Define agent for meal planning
meal_plan_agent = Flow(
    llm=llm,
    sop=MEAL_PLAN_PROMPT,
    max_loops=1,
    autosave=True,
    saved_state_path="meal_plan_agent.json",
)

# User preferences for meal planning
user_preferences = {
    "dietary_restrictions": "vegetarian",
    "preferred_cuisines": ["Italian", "Indian"],
    "caloric_intake": 2000,
    "other notes": "Doesn't eat legumes"
}

# Generate Meal Plan
meal_plan_output = meal_plan_agent.run(
    f"Generate a meal plan: {user_preferences}"
)

# Vision Agent - Analyze an Image
image_analysis_output = create_vision_agent("full_fridge.jpg")

# Generate Integrated Shopping List
integrated_shopping_list = generate_integrated_shopping_list(meal_plan_output, image_analysis_output, user_preferences)

# Print and save the outputs
print("Meal Plan:", meal_plan_output)
print("Integrated Shopping List:", integrated_shopping_list)

with open("nutrition_output.txt", "w") as file:
    file.write("Meal Plan:\n" + meal_plan_output + "\n\n")
    file.write("Integrated Shopping List:\n" + integrated_shopping_list + "\n")

print("Outputs have been saved to nutrition_output.txt")