"""
 
* Copyright (c) 2024, The vLLM 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.
* See the License for the specific language governing permissions and
* limitations under the License.
"""

import os
import sys
import torch
from setuptools import setup

aiter_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, f"{aiter_dir}/aiter/")
from jit.utils.cpp_extension import (
    BuildExtension,
    CUDAExtension,
)
from jit.utils.hipify import hipify_python

this_dir = os.path.dirname(os.path.abspath(__file__))
# gpus = subprocess.check_output("/opt/rocm/bin/rocminfo").decode(
#           'UTF-8').split('\n')
gpus = ["gfx936","gfx938"]
extra_args = ["--offload-arch=" + g for g in gpus]

# sets_rocm_pytorch = False
maj_ver, min_ver, *_ = torch.__version__.split(".")
if int(maj_ver) > 1 or (int(maj_ver) == 1 and int(min_ver) >= 5):
    from jit.utils.cpp_extension import ROCM_HOME

    is_rocm_pytorch = bool(torch.version.hip is not None and ROCM_HOME is not None)

ext_modules = []

generator_flag = []
torch_dir = torch.__path__[0]
if os.path.exists(os.path.join(torch_dir, "include", "ATen", "CUDAGenerator.h")):
    generator_flag = ["-DOLD_GENERATOR"]

print("\n\ntorch.__version__  = {}\n\n".format(torch.__version__))
TORCH_MAJOR = int(torch.__version__.split(".")[0])
TORCH_MINOR = int(torch.__version__.split(".")[1])

version_ge_1_1 = []
if (TORCH_MAJOR > 1) or (TORCH_MAJOR == 1 and TORCH_MINOR > 0):
    version_ge_1_1 = ["-DVERSION_GE_1_1"]
version_ge_1_3 = []
if (TORCH_MAJOR > 1) or (TORCH_MAJOR == 1 and TORCH_MINOR > 2):
    version_ge_1_3 = ["-DVERSION_GE_1_3"]
version_ge_1_5 = []
if (TORCH_MAJOR > 1) or (TORCH_MAJOR == 1 and TORCH_MINOR > 4):
    version_ge_1_5 = ["-DVERSION_GE_1_5"]
version_dependent_macros = version_ge_1_1 + version_ge_1_3 + version_ge_1_5

include_dirs = [os.path.join(this_dir, "csrc")]

# if is_rocm_pytorch:
#    import shutil
#    with hipify_python.GeneratedFileCleaner(
#    keep_intermediates=True) as clean_ctx:
#        hipify_python.hipify(project_directory=this_dir,
#                             output_directory=this_dir, includes="csrc/*",
# 				              show_detailed=True,
#                             is_pytorch_extension=True,
#                             clean_ctx=clean_ctx)

if not is_rocm_pytorch:
    ext_modules.append(
        CUDAExtension(
            name="gradlib",
            sources=["grad_funcs.cu"],
            extra_compile_args={
                "cxx": [
                    "-O3",
                ],
                "nvcc": [
                    "-O3",
                    "-U__CUDA_NO_HALF_OPERATORS__",
                    "-U__CUDA_NO_HALF_CONVERSIONS__",
                    "--expt-relaxed-constexpr",
                    "-ftemplate-depth=1024",
                    "-gencode=arch=compute_70,code=sm_70",
                    "-gencode=arch=compute_80,code=sm_80",
                    "-gencode=arch=compute_80,code=compute_80",
                ],
            },
        )
    )
elif is_rocm_pytorch:
    # if torch.__version__ <= '1.8':
    hipify_ver = (
        [int(x) for x in torch.utils.hipify.__version__.split(".")]
        if hasattr(torch.utils.hipify, "__version__")
        else [0, 0, 0]
    )
    if hipify_ver < [1, 0, 0]:
        with hipify_python.GeneratedFileCleaner(keep_intermediates=True) as clean_ctx:
            hipify_python.hipify(
                project_directory=this_dir,
                output_directory=this_dir,
                includes="csrc/*",
                show_detailed=True,
                is_pytorch_extension=True,
                clean_ctx=clean_ctx,
            )

        ext_modules.append(
            CUDAExtension(
                name="gradlib",
                sources=["./csrc/hip/grad_funcs.hip"],
                extra_compile_args={
                    "cxx": [
                        "-O3",
                    ]
                    + version_dependent_macros,
                    "nvcc": ["-O3"] + extra_args,
                },
            )
        )
    else:
        # ext_modules.append(
        #            CUDAExtension(
        #                name='gradlib',
        #                sources=['./csrc/grad_funcs.cu'],
        #                include_dirs=include_dirs,
        #                # add additional libraries argument for hipblaslt
        #                libraries=['hipblaslt'],
        #                extra_compile_args={
        #                    'cxx': ['-O3',],
        #                    'nvcc':['-O3',
        #                    '-U__CUDA_NO_HALF_OPERATORS__',
        #                    '-U__CUDA_NO_HALF_CONVERSIONS__',
        #                    "-ftemplate-depth=1024"] + extra_args
        #                }
        #            )
        #        )
        ext_modules.append(
            CUDAExtension(
                name="rocsolidxgemm",
                sources=["./csrc/rocsolgemm.cu"],
                include_dirs=include_dirs,
                # add additional libraries argument for hipblaslt
                libraries=["rocblas"],
                extra_compile_args={
                    "cxx": [
                        "-O3",
                        "-DLEGACY_HIPBLAS_DIRECT=ON",
                    ],
                    "nvcc": [
                        "-O3",
                        "-U__CUDA_NO_HALF_OPERATORS__",
                        "-U__CUDA_NO_HALF_CONVERSIONS__",
                        "-ftemplate-depth=1024",
                        "-DLEGACY_HIPBLAS_DIRECT=ON",
                    ]
                    + extra_args,
                },
            )
        )
        ext_modules.append(
            CUDAExtension(
                name="hipbsolidxgemm",
                sources=["./csrc/hipbsolgemm.cu"],
                include_dirs=include_dirs,
                # add additional libraries argument for hipblaslt
                libraries=["hipblaslt"],
                extra_compile_args={
                    "cxx": [
                        "-O3",
                        "-DLEGACY_HIPBLAS_DIRECT=ON",
                    ],
                    "nvcc": [
                        "-O3",
                        "-U__CUDA_NO_HALF_OPERATORS__",
                        "-U__CUDA_NO_HALF_CONVERSIONS__",
                        "-ftemplate-depth=1024",
                        "-DLEGACY_HIPBLAS_DIRECT=ON",
                    ]
                    + extra_args,
                },
            )
        )

setup(
    name="gradlib",
    packages=["gradlib"],
    ext_modules=ext_modules,
    cmdclass={"build_ext": BuildExtension},
)

# python setup.py build && cp build/lib*/gradlib* ../
