# Copyright 2013-2023 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)

import os
from glob import glob

from spack.package import *


class Libxsmm(MakefilePackage):
    """Library for specialized dense
    and sparse matrix operations,
    and deep learning primitives."""

    homepage = "https://github.com/hfp/libxsmm"
    url = "https://github.com/hfp/libxsmm/archive/1.17.tar.gz"
    git = "https://github.com/hfp/libxsmm.git"

    maintainers("hfp")

    license("BSD-3-Clause")

    # 2.0 release is planned for Jan / Feb 2024. This commit from main is added
    # as a stable version that supports other targets than x86. Remove this
    # after 2.0 release.
    version("main-2023-11", commit="0d9be905527ba575c14ca5d3b4c9673916c868b2")
    version("main", branch="main")

    version("1.17", sha256="8b642127880e92e8a75400125307724635ecdf4020ca4481e5efe7640451bb92")
    version("1.16.3", sha256="e491ccadebc5cdcd1fc08b5b4509a0aba4e2c096f53d7880062a66b82a0baf84")
    version("1.16.2", sha256="bdc7554b56b9e0a380fc9c7b4f4394b41be863344858bc633bc9c25835c4c64e")
    version("1.16.1", sha256="93dc7a3ec40401988729ddb2c6ea2294911261f7e6cd979cf061b5c3691d729d")
    version("1.16", sha256="4f4f2ad97815413af80821d2e306eb6f00541941ad412662da05c02361a20e07")
    version("1.15", sha256="499e5adfbf90cd3673309243c2b56b237d54f86db2437e1ac06c8746b55ab91c")
    version("1.14", sha256="9c0af4509ea341d1ee2c6c19fc6f19289318c3bd4b17844efeb9e7f9691abf76")
    version("1.13", sha256="47c034e169820a9633770eece0e0fdd8d4a744e09b81da2af8c2608a4625811e")
    version("1.12.1", sha256="3687fb98da00ba92cd50b5f0d18b39912c7886dad3856843573aee0cb34e9791")
    version("1.12", sha256="37432fae4404ca12d8c5a205bfec7f9326c2d607d9ec37680f42dae60b52382a")
    version("1.11", sha256="5fc1972471cd8e2b8b64ea017590193739fc88d9818e3d086621e5c08e86ea35")
    version("1.10", sha256="2904f7983719fd5c5af081121c1d028d45b10b854aec9a9e67996a0602631abc")
    version("1.9", sha256="cd8532021352b4a0290d209f7f9bfd7c2411e08286a893af3577a43457287bfa")
    version("1.8.3", sha256="08ed4a67731d07c739fa83c426a06a5a8fe576bc273da4bab84eb0d1f4405011")
    version("1.8.2", sha256="252ab73e437f5fcc87268df1ac130ffe6eb41e4281d9d3a3eaa7d591a85a612f")
    version("1.8.1", sha256="2ade869c3f42f23b5263c7d594aa3c7e5e61ac6a3afcaf5d6e42899d2a7986ce")
    version("1.8", sha256="0330201afb5525d0950ec861fec9dd75eb40a03845ebe03d2c635cf8bfc14fea")
    version("1.7.1", sha256="9d3f63ce3eed62f04e4036de6f2be2ce0ff07781ca571af6e0bf85b077edf17a")
    version("1.7", sha256="2eea65624a697e74b939511cd2a686b4c957e90c99be168fe134d96771e811ad")
    version("1.6.6", sha256="7c048a48e17f7f14a475be7b83e6e941289e03debb42ce9e02a06353412f9f2a")
    version("1.6.5", sha256="5231419a8e13e7a6d286cf25d32a3aa75c443a625e5ea57024d36468bc3d5936")
    version("1.6.4", sha256="3788bf1cdb60f119f8a04ed7ed96861322e539ce2d2ea977f00431d6b2b80beb")
    version("1.6.3", sha256="afad4f75ec5959bc3b18b741f3f16864f699c8b763598d01faf6af029dded48c")
    version("1.6.2", sha256="c1ad21dee1239c9c2422b2dd2dc83e7a364909fc82ff9bd6ce7d9c73ee4569de")
    version("1.6.1", sha256="1dd81077b186300122dc8a8f1872c21fd2bd9b88286ab9f068cc7b62fa7593a7")
    version("1.6", sha256="c2a56f8cdc2ab03a6477ef98dbaa00917674fda59caa2824a1a29f78d2255ba5")
    version("1.5.2", sha256="a037b7335932921960d687ef3d49b50ee38a83e0c8ad237bc20d3f4a0523f7d3")
    version("1.5.1", sha256="9e2a400e63b6fb2d4954e53536090eb8eb6f0ca25d0f34dd3a4f166802aa3d54")
    version("1.5", sha256="c52568c5e0e8dc9d8fcf869a716d73598e52f71c3d83af5a4c0b3be81403b423")
    version("1.4.4", sha256="bf4a0fff05cf721e11cb6cdb74f3d27dd0fa67ccc024055f2d9dd5dbd928c7c0")
    version("1.4.3", sha256="5033c33038ba4a75c675387aeb7c86b629e43ffc0a40df0b78e4ed52e4b5bd90")
    version("1.4.2", sha256="9c89391635be96759486a245365793bc4593859e6d7957b37c39a29f9b4f95eb")
    version("1.4.1", sha256="c19be118694c9b4e9a61ef4205b1e1a7e0c400c07f9bce65ae430d2dc2be5fe1")
    version("1.4", sha256="cf483a370d802bd8800c06a12d14d2b4406a745c8a0b2c8722ccc992d0cd72dd")

    variant("shared", default=False, description="With shared libraries (and static libraries).")
    variant("debug", default=False, description="With call-trace (LIBXSMM_TRACE); unoptimized.")
    variant(
        "header-only", default=False, when="@1.6.2:", description="With header-only installation"
    )
    variant("generator", default=False, description="With generator executable(s)")
    variant(
        "blas",
        default="default",
        multi=False,
        description="Control behavior of BLAS calls",
        values=("default", "0", "1", "2"),
    )
    variant(
        "large_jit_buffer",
        default=False,
        when="@1.17:",
        description="Max. JIT buffer size increased to 256 KiB",
    )
    depends_on("python", type="build")

    # A recent `as` is needed to compile libxmss until version 1.17
    # (<https://github.com/spack/spack/issues/28404>), but not afterwards
    # (<https://github.com/spack/spack/pull/21671#issuecomment-779882282>).
    depends_on("binutils+ld+gas@2.33:", type="build", when="@:1.17")

    # Version 2.0 supports both x86_64 and aarch64
    requires("target=x86_64:", "target=aarch64:")
    requires("target=x86_64:", when="@:1")

    @property
    def libs(self):
        result = find_libraries(["libxsmm", "libxsmmf"], root=self.prefix, recursive=True)
        if len(result) == 0:
            result = find_libraries(
                ["libxsmm", "libxsmmf"], root=self.prefix, shared=False, recursive=True
            )
        return result

    def build(self, spec, prefix):
        # include symbols by default
        make_args = [
            "CC={0}".format(spack_cc),
            "CXX={0}".format(spack_cxx),
            "FC={0}".format(spack_fc),
            "PREFIX=%s" % prefix,
            "SYM=1",
        ]

        # JIT (AVX and later) makes MNK, M, N, or K spec. superfluous
        # make_args += ['MNK=1 4 5 6 8 9 13 16 17 22 23 24 26 32']

        # include call trace as the build is already de-optimized
        if "+debug" in spec:
            make_args += ["DBG=1"]
            make_args += ["TRACE=1"]

        blas_val = spec.variants["blas"].value
        if blas_val != "default":
            make_args += ["BLAS={0}".format(blas_val)]

        if "+large_jit_buffer" in spec:
            make_args += ["CODE_BUF_MAXSIZE=262144"]

        if "+shared" in spec:
            make(*(make_args + ["STATIC=0"]))

        # builds static libraries by default
        make(*make_args)

    def install(self, spec, prefix):
        install_tree("include", prefix.include)

        # move pkg-config files to their right place
        mkdirp("lib/pkgconfig")
        for pcfile in glob("lib/*.pc"):
            os.rename(pcfile, os.path.join("lib/pkgconfig", os.path.basename(pcfile)))

        # always install libraries
        install_tree("lib", prefix.lib)

        if "+header-only" in spec:
            install_tree("src", prefix.src)

        if "+generator" in spec:
            install_tree("bin", prefix.bin)

        mkdirp(prefix.doc)
        install(join_path("documentation", "*.md"), prefix.doc)
        install(join_path("documentation", "*.pdf"), prefix.doc)
        if "@1.8.2:" in spec:
            install("LICENSE.md", prefix.doc)
        else:
            install("README.md", prefix.doc)
            install("LICENSE", prefix.doc)
        install("version.txt", prefix.doc)