app.py

import gradio as gr
from huggingface_hub import InferenceClient

# Set up the InferenceClient for the chatbot
client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")

def respond(
    message,
    history: list[tuple[str, str]],
    system_message,
    max_tokens,
    temperature,
    top_p,
):
    messages = [{"role": "system", "content": system_message}]

    for val in history:
        if val[0]:
            messages.append({"role": "user", "content": val[0]})
        if val[1]:
            messages.append({"role": "assistant", "content": val[1]})

    messages.append({"role": "user", "content": message})

    response = ""

    for message in client.chat_completion(
        messages,
        max_tokens=max_tokens,
        stream=True,
        temperature=temperature,
        top_p=top_p,
    ):
        token = message.choices[0].delta.content

        response += token
        yield response

# Define the interface with styling and customization
demo = gr.ChatInterface(
    respond,
    additional_inputs=[
        gr.Textbox(value="You are a friendly Chatbot.", label="System message", lines=1),
        gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"),
        gr.Slider(minimum=0.1, maximum=4.0, value=0.7, step=0.1, label="Temperature"),
        gr.Slider(minimum=0.1, maximum=1.0, value=0.95, step=0.05, label="Top-p (nucleus sampling)"),
    ],
    css="""
        /* Custom CSS to style the interface with pink and cute aesthetic */
        .gradio-container {
            background-color: #f9e5e5; /* Soft pastel pink */
            color: #ff8fa3; /* Pink text */
            font-family: 'Comic Sans MS', sans-serif; /* Fun, playful font */
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }

        .gradio-button {
            background-color: #ff7fa5; /* Lighter pink buttons */
            color: white;
            border-radius: 12px;
            font-size: 18px;
            padding: 16px 32px;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }

        .gradio-button:hover {
            background-color: #ff5885; /* Even lighter pink on hover */
        }

        .gradio-textbox {
            background-color: #ffd3d3; /* Soft pink background for textboxes */
            border-radius: 12px;
            color: #ff4d6d; /* Bold pink text */
            padding: 16px;
            border: 2px solid #ff8fa3;
        }

        .gradio-chat {
            background-color: #fff0f5; /* Very light pink for chat */
            border-radius: 20px;
            padding: 20px;
        }

        .gradio-chat .gradio-message-user {
            background-color: #ff7fa5; /* Light pink background for user messages */
            border-radius: 12px;
            color: white;
            padding: 12px;
        }

        .gradio-chat .gradio-message-assistant {
            background-color: #ffd3d3; /* Soft pink for assistant's messages */
            border-radius: 12px;
            color: #ff4d6d;
            padding: 12px;
        }

        .gradio-container h1 {
            color: #ff4d6d; /* Pink header */
            font-size: 40px;
            text-align: center;
            font-weight: bold;
            margin-bottom: 30px;
        }

        .gradio-container p {
            color: #ff8fa3; /* Soft pink text for descriptions */
            text-align: center;
            font-size: 16px;
            margin-top: 10px;
        }

        .gradio-container .gradio-textbox input {
            font-size: 18px;
        }
    """
)

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