from __future__ import annotations

from concurrent.futures import ThreadPoolExecutor
from pathlib import Path

from huggingface_hub import hf_hub_download
from tqdm.auto import tqdm
from ultralytics import YOLO

BINGSU = "Bingsu/adetailer"
GUON = "guon/hand-eyes"
ULTRALYTICS = "Ultralytics/YOLOv8"

model_info = [
    (BINGSU, "deepfashion2_yolov8s-seg.pt"),
    (BINGSU, "face_yolov8m.pt"),
    (BINGSU, "face_yolov8n.pt"),
    (BINGSU, "face_yolov8n_v2.pt"),
    (BINGSU, "face_yolov8s.pt"),
    (BINGSU, "face_yolov9c.pt"),
    (BINGSU, "hand_yolov8n.pt"),
    (BINGSU, "hand_yolov8s.pt"),
    (BINGSU, "hand_yolov9c.pt"),
    (BINGSU, "person_yolov8m-seg.pt"),
    (BINGSU, "person_yolov8n-seg.pt"),
    (BINGSU, "person_yolov8s-seg.pt"),
    (GUON, "Eyes.pt"),
    (GUON, "PitEyeDetailer-v1-seg.pt"),
    (GUON, "PitHandDetailer-v1-seg.pt"),
    (GUON, "female_breast-v4.2.pt"),
    (GUON, "full_eyes_detect_v1.pt"),
    (GUON, "lips_v1.pt"),
    (ULTRALYTICS, "yolov8l.pt"),
    (ULTRALYTICS, "yolov8m.pt"),
    (ULTRALYTICS, "yolov8n.pt"),
    (ULTRALYTICS, "yolov8s.pt"),
    (ULTRALYTICS, "yolov8x.pt"),
]


def download(model: str, repo: str) -> str:
    return hf_hub_download(
        repo, model, local_dir="downloads", local_dir_use_symlinks=False
    )


def export(path: str) -> str:
    model = YOLO(path)
    return model.export(format="onnx", dynamic=True, simplify=True)


def main():
    save = Path("models")
    save.mkdir(exist_ok=True)

    pbar = tqdm(model_info)
    with ThreadPoolExecutor() as executor:
        fs = []
        for repo, model in tqdm(model_info):
            fu = executor.submit(download, model, repo)
            fu.add_done_callback(lambda _: pbar.update())
            fs.append(fu)

    for future in fs:
        path = future.result()
        onnx = export(path)
        target_dir = save / Path(model).stem
        (target_dir / "1").mkdir(exist_ok=True, parents=True)
        (target_dir / "config.pbtxt").touch()
        target = target_dir / "1" / "model.onnx"
        Path(onnx).rename(target)


if __name__ == "__main__":
    main()