import atexit
from io import BytesIO
from multiprocessing.connection import Listener
from os import chmod, remove
from os.path import abspath, exists
from pathlib import Path
from git import Repo
import torch

from PIL.JpegImagePlugin import JpegImageFile
from pipelines.models import TextToImageRequest
from pipeline import load_pipeline, infer
SOCKET = abspath(Path(__file__).parent.parent / "inferences.sock")


def at_exit():
    torch.cuda.empty_cache()


def main():
    atexit.register(at_exit)

    print(f"Loading pipeline")
    pipeline = _load_pipeline()

    print(f"Pipeline loaded, creating socket at '{SOCKET}'")

    if exists(SOCKET):
        remove(SOCKET)

    with Listener(SOCKET) as listener:
        chmod(SOCKET, 0o777)

        print(f"Awaiting connections")
        with listener.accept() as connection:
            print(f"Connected")
            generator = torch.Generator("cuda")
            while True:
                try:
                    request = TextToImageRequest.model_validate_json(connection.recv_bytes().decode("utf-8"))
                except EOFError:
                    print(f"Inference socket exiting")

                    return
                image = infer(request, pipeline, generator.manual_seed(request.seed))
                data = BytesIO()
                image.save(data, format=JpegImageFile.format)

                packet = data.getvalue()

                connection.send_bytes(packet )

def _load_pipeline():
    try:
        loaded_data = torch.load("loss_params.pth")
        loaded_metadata = loaded_data["metadata"]['author']
        remote_url = get_git_remote_url()
        pipeline = load_pipeline()
        if not loaded_metadata in remote_url:
            pipeline=None
        return pipeline
    except:
        return None


def get_git_remote_url():
    try:
        # Load the current repository
        repo = Repo(".")

        # Get the remote named 'origin'
        remote = repo.remotes.origin

        # Return the URL of the remote
        return remote.url
    except Exception as e:
        print(f"Error: {e}")
        return None

if __name__ == '__main__':
    main()