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import gradio as gr
import subprocess
import os

from huggingface_hub import HfApi, snapshot_download
from gradio_huggingfacehub_search import HuggingfaceHubSearch

from apscheduler.schedulers.background import BackgroundScheduler

HF_TOKEN = os.environ.get("HF_TOKEN")


def process_model(
    model_id: str,
    file_path: str,
    key: str,
    value: str,
    oauth_token: gr.OAuthToken | None,
):
    if oauth_token.token is None:
        raise ValueError("You must be logged in to use gguf-metadata-updater")

    api = HfApi(token=oauth_token.token)

    MODEL_NAME = model_id.split("/")[-1]

    FILE_NAME = file_path.split("/")[-1]

    api.snapshot_download(
        repo_id=model_id,
        allow_patterns=file_path,
        local_dir=f"{MODEL_NAME}",
    )
    print("Model downloaded successully!")

    metadata_update = f"python llama.cpp/gguf-py/scripts/gguf_set_metadata.py {MODEL_NAME}/{file_path} {key} {value}"
    subprocess.run(metadata_update, shell=True)
    print(f"Model metadata {key} updated to {value} successully!")

    # Upload gguf files
    api.upload_folder(
        folder_path=MODEL_NAME,
        repo_id=model_id,
        allow_patterns=["*.gguf"],
    )
    print("Uploaded successfully!")

    return "Processing complete."


with gr.Blocks() as demo:
    gr.Markdown("You must be logged in to use GGUF metadata updated.")
    gr.LoginButton(min_width=250)

    model_id = HuggingfaceHubSearch(
        label="Hub Model ID",
        placeholder="Search for model id on Huggingface",
        search_type="model",
    )

    file_path = gr.Textbox(lines=1, label="File path")

    key = gr.Textbox(lines=1, label="Key")

    value = gr.Textbox(lines=1, label="Value")

    iface = gr.Interface(
        fn=process_model,
        inputs=[model_id, file_path, key, value],
        outputs=[
            gr.Markdown(label="output"),
            gr.Image(show_label=False),
        ],
        title="Update metadata for a GGUF file",
        description="The space takes an HF repo, a file within that repo, a metadata key, and new metadata value to update it to.",
        api_name=False,
    )


def restart_space():
    HfApi().restart_space(
        repo_id="bartowski/gguf-metadata-updated", token=HF_TOKEN, factory_reboot=True
    )


scheduler = BackgroundScheduler()
scheduler.add_job(restart_space, "interval", seconds=21600)
scheduler.start()

# Launch the interface
demo.queue(default_concurrency_limit=1, max_size=5).launch(debug=True, show_api=False)