app.py

import gradio as gr
import joblib
import numpy as np
import pandas as pd
from openai import OpenAI
from huggingface_hub import hf_hub_download

# Load your pre-trained model and label names
model_path = hf_hub_download(repo_id="govtech/zoo-entry-001", filename="model.joblib")
model_data = joblib.load(model_path)
model = model_data['model']
label_names = model_data['label_names']

# Initialize OpenAI client
client = OpenAI()

def get_embedding(text, embedding_model="text-embedding-3-large"):
    """
    Get embedding for the input text from OpenAI.
    Replace newlines in the text, then call the API.
    """
    text = text.replace("\n", " ")
    response = client.embeddings.create(
        input=[text],
        model=embedding_model
    )
    # Extract embedding vector from response
    embedding = response.data[0].embedding
    return np.array(embedding)

def classify_text(text):
    """
    Get the OpenAI embedding for the provided text, classify it using your model,
    and return an updated DataFrame component with the predictions and probabilities.
    """
    embedding = get_embedding(text)
    # Add batch dimension
    X = np.array(embedding)[None, :]
    # Get probabilities from the model
    probabilities = model.predict(X)
    # Create a DataFrame with probabilities, labels, and binary predictions
    df = pd.DataFrame({
        'Label': label_names,
        'Probability': probabilities[0],
        'Prediction': (probabilities[0] > 0.5).astype(int)
    })
    # Return an update to the DataFrame component to make it visible with the results
    return gr.update(value=df, visible=True)

with gr.Blocks(title="Zoo Entry 001") as iface:
    
    with gr.Row():
        input_text = gr.Textbox(lines=5, label="Input Text")
    
    with gr.Row():
        submit_btn = gr.Button("Submit")
    
    # Initialize the table as hidden
    with gr.Row():
        output_table = gr.DataFrame(label="Classification Results", visible=False)
    
    submit_btn.click(fn=classify_text, inputs=input_text, outputs=output_table)

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