app.py

# pip install gradio openai python-dotenv

import gradio as gr
import openai
import os
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

# Set OpenAI API key
openai.api_key = os.getenv("OPENAI_API_KEY")
HEADER_IMAGE_PATH = "header.jpg"

def compose_prompt(ingredients, complexity):
    """Composes the prompt for the OpenAI API."""
    complexity_level = {
        1: "very simple and quick",
        2: "simple",
        3: "moderate",
        4: "complex",
        5: "very complex and gourmet"
    }.get(complexity, "simple")

    prompt = f"""Task: Generate a recipe using the following ingredients with a {complexity_level} complexity level.

Ingredients: {ingredients}

The recipe should include:
- Recipe title
- Estimated prep and cook time (in minutes, total time <= 60 for complexity <= 2, <= 120 for complexity 5, using metric units)
- List of ingredients with approximate amounts (using metric units)
- Step-by-step cooking instructions (using degrees °C)
- Optional tips or substitutions
- Note about what to buy if something is missing

Format the output as Markdown.
"""
    return prompt

def generate_recipe(ingredients, complexity):
    """Generates a recipe using the OpenAI API."""
    if not ingredients:
        return "Please provide some ingredients."

    prompt = compose_prompt(ingredients, complexity)

    try:
        response = openai.chat.completions.create(
            model="gpt-4-turbo",  # or "gpt-4-turbo"
            messages=[
                {"role": "system", "content": "You are a helpful recipe generator."},
                {"role": "user", "content": prompt}
            ],
            temperature=0.7,
            max_tokens=500,
        )
        return response.choices[0].message.content
    except Exception as e:
        return f"An error occurred: {e}"

with gr.Blocks(title="Recipe Generator") as demo:
    headline_html = f"""
    <div style="display:flex;align-items:center;gap:14px;margin:10px 0 6px 0;">
        <img src="{HEADER_IMAGE_PATH}" alt="Header" style="height:56px;object-fit:contain;">
        <h1 style="margin:0;font-size:28px;">Recipe Generator</h1>
    </div>
    """
    gr.HTML(headline_html)
    gr.Markdown("# Recipe Generator")
    gr.Markdown("Enter your ingredients and desired complexity to get a recipe.")

    with gr.Row():
        ingredients_input = gr.Textbox(
            label="Ingredients",
            placeholder="chicken, rice, tomatoes, garlic",
            lines=3,
            interactive=True
        )
        complexity_slider = gr.Slider(
            label="Complexity level",
            minimum=1,
            maximum=5,
            step=1,
            value=2,
            interactive=True
        )

    generate_button = gr.Button("Generate recipe")

    recipe_output = gr.Markdown()

    generate_button.click(
        fn=generate_recipe,
        inputs=[ingredients_input, complexity_slider],
        outputs=recipe_output
    )

    gr.Examples(
        examples=[
            ["pasta, spinach, cheese, garlic", 3],
            ["salmon, asparagus, lemon", 2],
            ["beef, potatoes, carrots, onions", 4]
        ],
        inputs=[ingredients_input, complexity_slider]
    )

if __name__ == "__main__":
    demo.launch()