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# 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 spack.package import *


class Libmolgrid(CMakePackage):
    """libmolgrid is a library to generate tensors from molecular data, with properties
    that make its output particularly suited to machine learning."""

    homepage = "https://gnina.github.io/libmolgrid/"
    url = "https://github.com/gnina/libmolgrid/archive/refs/tags/v0.5.2.tar.gz"

    maintainers("RMeli")

    license("Apache-2.0")

    version("0.5.3", sha256="a9f7a62cdeb516bc62a06b324cdd33b095a787df175c6166d74a8d30b6916abb")
    version("0.5.2", sha256="e732d13a96c2f374d57a73999119bef700172d392c195c751214aa6ac6680c3a")

    depends_on("zlib-api")
    depends_on("boost +regex +test +program_options +system +filesystem +iostreams +python")
    depends_on("openbabel@3:~gui~cairo")
    depends_on("cuda@11")

    depends_on("python")
    depends_on("py-numpy")
    depends_on("py-pytest")

    def cmake_args(self):
        ob_incl = os.path.join(self.spec["openbabel"].prefix.include, "openbabel3")
        ob_libs = self.spec["openbabel"].libs.joined(";")

        args = [
            "-DOPENBABEL3_INCLUDE_DIR=" + ob_incl,
            "-DOPENBABEL3_LIBRARIES=" + ob_libs,
            f"-DPYTHON_EXECUTABLE={self.spec['python'].command.path}",
        ]
        return args