# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.package import *


class Exago(CMakePackage, CudaPackage, ROCmPackage):
    """ExaGO is a package for solving large-scale power grid optimization
    problems on parallel and distributed architectures, particularly targeted
    for exascale machines."""

    homepage = "https://gitlab.pnnl.gov/exasgd/frameworks/exago"
    git = "https://gitlab.pnnl.gov/exasgd/frameworks/exago.git"
    maintainers = ["ashermancinelli", "CameronRutherford", "pelesh"]

    version(
        "1.4.1", commit="ea607c685444b5f345bfdc9a59c345f0f30adde2", submodules=True, preferred=True
    )
    version("1.4.0", commit="4f4c3fdb40b52ace2d6ba000e7f24b340ec8e886", submodules=True)
    version("1.3.0", commit="58b039d746a6eac8e84b0afc01354cd58caec485", submodules=True)
    version("1.2.0", commit="255a214e", submodules=True)
    version("1.1.2", commit="db3bb16e", submodules=True)
    version("1.1.1", commit="0e0a3f27", submodules=True)
    version("1.1.0", commit="dc8dd855", submodules=True)
    version("1.0.0", commit="230d7df2")
    version("0.99.2", commit="56961641")
    version("0.99.1", commit="0ae426c7")
    version("master", branch="master", submodules=True)
    version("develop", branch="develop", submodules=True)
    version("5-18-2022-snapshot", tag="5-18-2022-snapshot", submodules=True)

    # Progrmming model options
    variant("mpi", default=True, description="Enable/Disable MPI")
    variant("raja", default=False, description="Enable/Disable RAJA")
    variant("python", default=True, description="Enable/Disable Python bindings")
    conflicts("+python", when="@:1.3.0", msg="Python bindings require ExaGO 1.4")
    conflicts(
        "+python", when="+ipopt+rocm", msg="Python bindings require -fPIC with Ipopt for rocm."
    )

    # Solver options
    variant("hiop", default=False, description="Enable/Disable HiOp")
    variant("ipopt", default=False, description="Enable/Disable IPOPT")

    conflicts("~hiop~ipopt", msg="ExaGO needs at least one solver enabled")

    # Dependencides
    depends_on("pkgconfig", type="build")
    depends_on("mpi", when="+mpi")
    depends_on("blas")
    depends_on("cuda", when="+cuda")
    depends_on("raja", when="+raja")

    depends_on("raja@0.14.0:", when="@1.1.0: +raja")
    depends_on("umpire", when="+raja")
    depends_on("umpire@6.0.0:", when="@1.1.0: +raja")

    # Some allocator code in Umpire only works with static libs
    depends_on("umpire+cuda~shared", when="+raja+cuda")

    depends_on("cmake@3.18:", type="build")

    # HiOp dependency logic
    depends_on("hiop+raja", when="+hiop+raja")
    depends_on("hiop@0.3.99:", when="@0.99:+hiop")
    depends_on("hiop@0.5.1:", when="@1.1.0:+hiop")
    depends_on("hiop@0.5.3:", when="@1.3.0:+hiop")

    depends_on("hiop~mpi", when="+hiop~mpi")
    depends_on("hiop+mpi", when="+hiop+mpi")

    depends_on("petsc@3.13:3.14", when="@:1.2.99")
    depends_on("petsc@3.16.0:3.16", when="@1.3.0:")
    depends_on("petsc~mpi", when="~mpi")

    depends_on("py-pytest", type=("build", "run"), when="@1.4.1:+python")

    for arch in CudaPackage.cuda_arch_values:
        cuda_dep = "+cuda cuda_arch={0}".format(arch)
        depends_on("hiop {0}".format(cuda_dep), when=cuda_dep)
        depends_on("raja {0}".format(cuda_dep), when="+raja {0}".format(cuda_dep))

        # For some versions of RAJA package, camp cuda variant does not get set
        # correctly, so we must explicitly depend on it even though we don't use
        # camp
        depends_on("camp {0}".format(cuda_dep), when="+raja {0}".format(cuda_dep))

    for arch in ROCmPackage.amdgpu_targets:
        rocm_dep = "+rocm amdgpu_target={0}".format(arch)
        depends_on("hiop {0}".format(rocm_dep), when=rocm_dep)
        depends_on("raja {0}".format(rocm_dep), when="+raja {0}".format(rocm_dep))

    depends_on("ipopt", when="+ipopt")

    depends_on("py-mpi4py", when="@1.3.0:+mpi+python")

    flag_handler = build_system_flags

    def cmake_args(self):
        args = []
        spec = self.spec

        # NOTE: If building with spack develop on a cluster, you may want to
        # change the ctest launch command to use your job scheduler like so:
        #
        # args.append(
        #     self.define('EXAGO_CTEST_LAUNCH_COMMAND', 'srun -t 10:00'))

        args.extend(
            [
                self.define("EXAGO_ENABLE_GPU", "+cuda" in spec or "+rocm" in spec),
                self.define_from_variant("EXAGO_ENABLE_CUDA", "cuda"),
                self.define_from_variant("EXAGO_ENABLE_HIP", "rocm"),
                self.define("PETSC_DIR", spec["petsc"].prefix),
                self.define("EXAGO_RUN_TESTS", True),
                self.define_from_variant("EXAGO_ENABLE_MPI", "mpi"),
                self.define_from_variant("EXAGO_ENABLE_RAJA", "raja"),
                self.define_from_variant("EXAGO_ENABLE_HIOP", "hiop"),
                self.define_from_variant("EXAGO_ENABLE_IPOPT", "ipopt"),
                self.define_from_variant("EXAGO_ENABLE_PYTHON", "python"),
            ]
        )

        if "+cuda" in spec:
            cuda_arch_list = spec.variants["cuda_arch"].value
            if cuda_arch_list[0] != "none":
                args.append(self.define("CMAKE_CUDA_ARCHITECTURES", cuda_arch_list))

        # NOTE: if +rocm, some HIP CMake variables may not be set correctly.
        # Namely, HIP_CLANG_INCLUDE_PATH. If the configure phase fails due to
        # this variable being undefined, adding the following line typically
        # resolves this issue:
        #
        # args.append(
        #     self.define('HIP_CLANG_INCLUDE_PATH',
        #         '/opt/rocm-X.Y.Z/llvm/lib/clang/14.0.0/include/'))
        if "+rocm" in spec:
            args.append(self.define("CMAKE_CXX_COMPILER", spec["hip"].hipcc))

            rocm_arch_list = spec.variants["amdgpu_target"].value
            if rocm_arch_list[0] != "none":
                args.append(self.define("GPU_TARGETS", rocm_arch_list))
                args.append(self.define("AMDGPU_TARGETS", rocm_arch_list))

        return args