import os
import re
from fairseq import checkpoint_utils


def get_index_path_from_model(sid):
    sid0strip = re.sub(r'\.pth|\.onnx$', '', sid)
    sid0name = os.path.split(sid0strip)[-1]  # Extract only the name, not the directory

    # Check if the sid0strip has the specific ending format _eXXX_sXXX
    if re.match(r'.+_e\d+_s\d+$', sid0name):
        base_model_name = sid0name.rsplit('_', 2)[0]
    else:
        base_model_name = sid0name
    
    return next(
        (
            f
            for f in [
                os.path.join(root, name)
                for root, _, files in os.walk(os.getenv("index_root"), topdown=False)
                for name in files
                if name.endswith(".index") and "trained" not in name
            ]
            if base_model_name in f
        ),
        "",
    )


def load_hubert(config):
    models, _, _ = checkpoint_utils.load_model_ensemble_and_task(
        ["assets/hubert/hubert_base.pt"],
        suffix="",
    )
    hubert_model = models[0]
    hubert_model = hubert_model.to(config.device)
    if config.is_half:
        hubert_model = hubert_model.half()
    else:
        hubert_model = hubert_model.float()
    return hubert_model.eval()