from typing import List, Generator

from bs4 import BeautifulSoup, Tag
import urllib3

SUPPORTED_MODEL_NAME_PAGES_FORMAT: str = "https://huggingface.co/models?pipeline_tag=text-generation&library=pytorch"


def get_model_name(model_card: Tag) -> str:
    """
    Gets the model name from the model card.
    :param model_card: The model card to get the model name from.
    :return: The model name.
    """
    h4_class = "text-md truncate font-mono text-black dark:group-hover:text-yellow-500 group-hover:text-indigo-600"
    h4_tag: Tag = model_card.find("h4", class_=h4_class)
    return h4_tag.text


def get_soups() -> Generator[BeautifulSoup, None, None]:
    """
    Gets the pages to scrape.
    :return: A list of the pages to scrape.
    """
    curr_page_index = 0
    while True:
        curr_page_url = f"{SUPPORTED_MODEL_NAME_PAGES_FORMAT}&p={curr_page_index}"
        request = urllib3.PoolManager().request("GET", curr_page_url)
        if request.status != 200:
            return
        yield BeautifulSoup(request.data, "html.parser")
        curr_page_index += 1


def get_supported_model_names() -> Generator[str, None, None]:
    """
    Scrapes the supported model names from the hugging face website.
    :return: A list of the supported model names.
    """
    for soup in get_soups():
        model_cards: List[Tag] = soup.find_all("article", class_="overview-card-wrapper group", recursive=True)
        for model_card in model_cards:
            yield get_model_name(model_card)


if __name__ == "__main__":
    for model_name in get_supported_model_names():
        print(model_name)