# Copyright 2025-present the HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# Based on implementation made available in https://github.com/ppetrushkov/peft/tree/road (not from paper authors)

from peft.import_utils import is_bnb_4bit_available, is_bnb_available
from peft.utils import register_peft_method

from .config import RoadConfig
from .layer import Linear, RoadLayer
from .model import RoadModel


__all__ = [
    "Linear",
    "RoadConfig",
    "RoadLayer",
    "RoadModel",
]

register_peft_method(name="road", config_cls=RoadConfig, model_cls=RoadModel, is_mixed_compatible=True)


def __getattr__(name):
    if (name == "Linear8bitLt") and is_bnb_available():
        from .bnb import Linear8bitLt

        return Linear8bitLt

    if (name == "Linear4bit") and is_bnb_4bit_available():
        from .bnb import Linear4bit

        return Linear4bit

    raise AttributeError(f"module {__name__} has no attribute {name}")