app.py

import gradio as gr
from gradio_huggingfacehub_search import HuggingfaceHubSearch
import nbformat as nbf
from huggingface_hub import HfApi
from httpx import Client
import logging
from huggingface_hub import InferenceClient
import json
import re
import pandas as pd
from gradio.data_classes import FileData
from utils.prompts import generate_mapping_prompt, generate_eda_prompt

"""
TODOs:
- Need feedback on the output commands to validate if operations are appropiate to data types 
- Refactor
- Make the notebook generation more dynamic, add loading components to do not freeze the UI
- Fix errors:
    - When generating output
    - When parsing output
    - When pushing notebook
- Add target tasks to choose for the notebook:
    - Exploratory data analysis
    - Auto training
    - RAG
    - etc.
- Enable 'generate notebook' button only if dataset is available and supports library
- First get compatible-libraries and let user choose the library
"""

# Configuration
BASE_DATASETS_SERVER_URL = "https://datasets-server.huggingface.co"
HEADERS = {"Accept": "application/json", "Content-Type": "application/json"}
GENERATED_TEXT = ""

client = Client(headers=HEADERS)
inference_client = InferenceClient("meta-llama/Meta-Llama-3-8B-Instruct")

logging.basicConfig(level=logging.INFO)


def get_compatible_libraries(dataset: str):
    resp = client.get(
        f"{BASE_DATASETS_SERVER_URL}/compatible-libraries?dataset={dataset}"
    )
    resp.raise_for_status()
    return resp.json()


def create_notebook_file(cell_commands, notebook_name):
    nb = nbf.v4.new_notebook()
    nb["cells"] = [
        nbf.v4.new_code_cell(command["source"])
        if command["cell_type"] == "code"
        else nbf.v4.new_markdown_cell(command["source"])
        for command in cell_commands
    ]

    with open(notebook_name, "w") as f:
        nbf.write(nb, f)
    logging.info(f"Notebook {notebook_name} created successfully")


def push_notebook(file_path, dataset_id, token):
    notebook_name = "dataset_analysis.ipynb"
    api = HfApi(token=token)
    try:
        api.upload_file(
            path_or_fileobj=file_path,
            path_in_repo=notebook_name,
            repo_id=dataset_id,
            repo_type="dataset",
        )
        link = f"https://huggingface.co/datasets/{dataset_id}/blob/main/{notebook_name}"
        return gr.HTML(
            value=f'<a target="_blank" href="{link}" style="color: var(--link-text-color); text-decoration: underline; text-decoration-style: dotted;">See notebook</a>',
            visible=True,
        )
    except Exception as err:
        logging.error(f"Failed to push notebook: {err}")
        return gr.HTML(value="Failed to push notebook", visible=True)


def get_first_rows_as_df(dataset: str, config: str, split: str, limit: int):
    resp = client.get(
        f"{BASE_DATASETS_SERVER_URL}/first-rows?dataset={dataset}&config={config}&split={split}"
    )
    resp.raise_for_status()
    content = resp.json()
    rows = content["rows"]
    rows = [row["row"] for row in rows]
    first_rows_df = pd.DataFrame.from_dict(rows).sample(frac=1).head(limit)
    features = content["features"]
    features_dict = {feature["name"]: feature["type"] for feature in features}
    return features_dict, first_rows_df


def get_txt_from_output(output):
    extracted_text = content_from_output(output)
    content = json.loads(extracted_text)
    logging.info(content)
    return content


def content_from_output(output):
    pattern = r"`json(.*?)`"
    match = re.search(pattern, output, re.DOTALL)
    if not match:
        pattern = r"```(.*?)```"
        match = re.search(pattern, output, re.DOTALL)
        if not match:
            try:
                index = output.index("```json")
                logging.info(f"Index: {index}")
                return output[index + 7 :]
            except:
                pass
            raise Exception("Unable to generate jupyter notebook.")
    return match.group(1)


def generate_cells(dataset_id):
    try:
        libraries = get_compatible_libraries(dataset_id)
    except Exception as err:
        gr.Error("Unable to retrieve dataset info from HF Hub.")
        logging.error(f"Failed to fetch compatible libraries: {err}")
        return []

    if not libraries:
        gr.Error("Dataset not compatible with pandas library.")
        logging.error(f"Dataset not compatible with pandas library")
        return gr.File(visible=False), gr.Row.update(visible=False)

    pandas_library = next(
        (lib for lib in libraries.get("libraries", []) if lib["library"] == "pandas"),
        None,
    )
    if not pandas_library:
        gr.Error("Dataset not compatible with pandas library.")
        return []

    first_config_loading_code = pandas_library["loading_codes"][0]
    first_code = first_config_loading_code["code"]
    first_config = first_config_loading_code["config_name"]
    first_split = list(first_config_loading_code["arguments"]["splits"].keys())[0]
    logging.info(f"First config: {first_config} - first split: {first_split}")
    first_file = f"hf://datasets/{dataset_id}/{first_config_loading_code['arguments']['splits'][first_split]}"
    logging.info(f"First split file: {first_file}")
    features, df = get_first_rows_as_df(dataset_id, first_config, first_split, 3)
    sample_data = df.head(5).to_dict(orient="records")
    prompt = generate_eda_prompt(features, sample_data, first_code)
    messages = [gr.ChatMessage(role="user", content=prompt)]
    yield messages + [gr.ChatMessage(role="assistant", content="⏳ _Starting task..._")]

    prompt_messages = [{"role": "user", "content": prompt}]
    output = inference_client.chat_completion(
        messages=prompt_messages, stream=True, max_tokens=2500
    )

    global GENERATED_TEXT
    GENERATED_TEXT = ""
    current_line = ""
    for chunk in output:
        current_line += chunk.choices[0].delta.content
        if current_line.endswith("\n"):
            GENERATED_TEXT += current_line
            messages.append(gr.ChatMessage(role="assistant", content=current_line))
            current_line = ""
        yield messages
    yield messages

    logging.info("---> Formated prompt")
    formatted_prompt = generate_mapping_prompt(GENERATED_TEXT)
    logging.info(formatted_prompt)
    prompt_messages = [{"role": "user", "content": formatted_prompt}]
    yield messages + [
        gr.ChatMessage(role="assistant", content="⏳ _Generating notebook..._")
    ]

    output = inference_client.chat_completion(
        messages=prompt_messages, stream=False, max_tokens=2500
    )
    cells_txt = output.choices[0].message.content
    logging.info("---> Model output")
    logging.info(cells_txt)

    commands = get_txt_from_output(cells_txt)
    html_code = f"<iframe src='https://huggingface.co/datasets/{dataset_id}/embed/viewer' width='80%' height='560px'></iframe>"
    # Adding dataset viewer on the first part
    commands.insert(
        0,
        {
            "cell_type": "code",
            "source": f'from IPython.display import HTML\n\ndisplay(HTML("{html_code}"))',
        },
    )
    commands.insert(0, {"cell_type": "markdown", "source": "# Dataset Viewer"})
    notebook_name = f"{dataset_id.replace('/', '-')}.ipynb"
    create_notebook_file(commands, notebook_name=notebook_name)
    messages.append(
        gr.ChatMessage(role="user", content="Here is the generated notebook")
    )
    yield messages
    messages.append(
        gr.ChatMessage(
            role="user",
            content=FileData(path=notebook_name, mime_type="application/x-ipynb+json"),
        )
    )
    yield messages


def write_notebook_file(dataset_id, history):
    if not GENERATED_TEXT:
        raise Exception("No generated notebook")
    commands = get_txt_from_output(GENERATED_TEXT)
    html_code = f"<iframe src='https://huggingface.co/datasets/{dataset_id}/embed/viewer' width='80%' height='560px'></iframe>"
    # Adding dataset viewer on the first part
    commands.insert(
        0,
        {
            "cell_type": "code",
            "source": f'from IPython.display import HTML\n\ndisplay(HTML("{html_code}"))',
        },
    )
    commands.insert(0, {"cell_type": "markdown", "source": "# Dataset Viewer"})
    notebook_name = f"{dataset_id.replace('/', '-')}.ipynb"
    create_notebook_file(commands, notebook_name=notebook_name)
    history.append(
        gr.ChatMessage(role="user", content="Here is the generated notebook")
    )
    history.append(
        gr.ChatMessage(
            role="user",
            content=FileData(path=notebook_name, mime_type="application/x-ipynb+json"),
        )
    )
    return history


with gr.Blocks(fill_height=True) as demo:
    gr.Markdown("# 🤖 Dataset notebook creator 🕵️")
    with gr.Row():
        with gr.Column(scale=1):
            dataset_name = HuggingfaceHubSearch(
                label="Hub Dataset ID",
                placeholder="Search for dataset id on Huggingface",
                search_type="dataset",
                value="",
            )

            @gr.render(inputs=dataset_name)
            def embed(name):
                if not name:
                    return gr.Markdown("### No dataset provided")
                html_code = f"""
                <iframe
                src="https://huggingface.co/datasets/{name}/embed/viewer/default/train"
                frameborder="0"
                width="100%"
                height="350px"
                ></iframe>
                """
                return gr.HTML(value=html_code)

            with gr.Row():
                generate_eda_btn = gr.Button("Generate EDA notebook")
                generate_training_btn = gr.Button("Generate Training notebook")
                generate_rag_btn = gr.Button("Generate RAG notebook")
        with gr.Column():
            chatbot = gr.Chatbot(
                label="Results",
                type="messages",
                avatar_images=(
                    None,
                    None,
                ),
            )

    generate_eda_btn.click(
        generate_cells,
        inputs=[dataset_name],
        outputs=[chatbot],
    )

    # with gr.Row(visible=False) as auth_page:
    #     with gr.Column():
    #         gr.Markdown(
    #             "Want to push to hub? Enter your token ([settings](https://huggingface.co/settings/tokens)):"
    #         )
    #         token_box = gr.Textbox(
    #             "", label="token", placeholder="hf_xxx", type="password"
    #         )
    #         auth_error = gr.Markdown("", visible=False)

    # push_btn = gr.Button("Push notebook to hub", visible=False)
    # output_lbl = gr.HTML(value="", visible=False)

    # def auth(token):
    #     if not token:
    #         return {
    #             auth_error: gr.Markdown(value="", visible=False),
    #             push_btn: gr.Button(visible=False),
    #         }
    #     return {
    #         auth_error: gr.Markdown(value="", visible=False),
    #         push_btn: gr.Button("Push notebook to hub", visible=True),
    #     }

    # token_box.change(
    #     auth,
    #     inputs=token_box,
    #     outputs=[auth_error, push_btn],
    # )

    # push_btn.click(
    #     push_notebook,
    #     inputs=[dataset_name, token_box],
    #     outputs=output_lbl,
    # )

demo.launch()