#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
# ----------------------------------------------------------------------------
# Copyright (c) Huawei Technologies Co., Ltd. 2026. All rights reserved.
#
# 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.
# See the License for the specific language governing permissions and
# limitations under the License.
# ----------------------------------------------------------------------------
import sys

import torch


class _FakeHifloat8:
    @staticmethod
    def float_to_hifloat8(x):
        return x.to(torch.uint8).to(torch.int8)

    @staticmethod
    def hifloat8_to_float32(qx):
        return qx.float()

    @staticmethod
    def hifloat8_to_float16(qx):
        return qx.half()

    @staticmethod
    def hifloat8_to_bfloat16(qx):
        return qx.to(torch.bfloat16)


class _FakeHifloat8Module:
    hifloat8_cast = _FakeHifloat8


def pytest_configure(config):
    sys.modules.setdefault(
        "amct_pytorch.quantization.dtypes.hifloat8", _FakeHifloat8Module
    )
    sys.modules.setdefault(
        "amct_pytorch.quantization.dtypes.hifloat8.hifloat8_cast", _FakeHifloat8
    )