from . import modules
from pathlib import Path
from . import scheduler
from .interface import Interface
from .modules.transformer import VampNet


__version__ = "0.0.1"

ROOT = Path(__file__).parent.parent
MODELS_DIR = ROOT / "models" / "vampnet"

from huggingface_hub import hf_hub_download, HfFileSystem
DEFAULT_HF_MODEL_REPO = "hugggof/vampnet"
FS = HfFileSystem()

def download_codec():
    # from dac.model.dac import DAC
    from lac.model.lac import LAC as DAC
    repo_id = DEFAULT_HF_MODEL_REPO
    filename = "codec.pth"
    codec_path = hf_hub_download(
        repo_id=repo_id,
        filename=filename,
        subfolder=None, 
        local_dir=MODELS_DIR
    )
    return codec_path
    

def download_default():
    filenames = ["coarse.pth", "c2f.pth"]
    repo_id = DEFAULT_HF_MODEL_REPO
    paths = []
    for filename in filenames:
        path = f"{MODELS_DIR}/{filename}"
        if not Path(path).exists():
            path = hf_hub_download(
                repo_id=repo_id,
                filename=filename,
                subfolder=None, 
                local_dir=MODELS_DIR,
                local_dir_use_symlinks=False,
                local_files_only=False
            )
        paths.append(path)
    
    # load the models
    return paths[0], paths[1]


def download_finetuned(name):
    repo_id = f"{DEFAULT_HF_MODEL_REPO}"
    filenames = ["coarse.pth", "c2f.pth"]
    paths = []
    for filename in filenames:
        path = f"{MODELS_DIR}/{name}/loras/{filename}"
        if not Path(path).exists():
            path = hf_hub_download(
                repo_id=repo_id,
                filename=filename,
                subfolder=f"loras/{name}", 
                local_dir=MODELS_DIR, 
                local_dir_use_symlinks=False,
                local_files_only=False
            )
        paths.append(path)
    
    # load the models
    return paths[0], paths[1]
    
def list_finetuned():
    diritems = FS.listdir(f"{DEFAULT_HF_MODEL_REPO}/loras")
    # iterate through all the names
    valid_diritems = []
    for item in diritems:
        model_file_items = FS.listdir(item["name"])
        item_names = [item["name"].split("/")[-1] for item in model_file_items]
        # check that theres a "c2f.pth" and "coarse.pth" in the items
        c2f_exists = "c2f.pth" in item_names
        coarse_exists = "coarse.pth" in item_names
        if c2f_exists and coarse_exists:
            valid_diritems.append(item)

    # get the names of the valid items
    names = [item["name"].split("/")[-1] for item in valid_diritems]
    return names