# 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)

from spack.package import *


class PyModin(PythonPackage):
    """Modin: Make your pandas code run faster by changing one line of code."""

    homepage = "https://github.com/modin-project/modin"
    pypi = "modin/modin-0.16.2.tar.gz"

    version("0.16.2", sha256="8e3f4cb478ae08dcc71b5a345781d57f29d6b95bc6ce1dc5c14d597a382f1354")

    variant(
        "engine",
        default="ray",
        values=["ray", "dask", "python", "native"],
        description="Default distribution engine. All engines are installed and "
        "functional as long as dependencies are found at run-time",
    )

    depends_on("python@3.6:", type=("build", "run"))
    depends_on("py-setuptools", type="build")
    depends_on("py-pandas@1.5.1", when="^python@3.8:", type=("build", "run"))
    depends_on("py-pandas@1.1.5", when="^python@:3.7", type=("build", "run"))
    depends_on("py-packaging", type=("build", "run"))
    depends_on("py-numpy@1.18.5:", type=("build", "run"))
    depends_on("py-fsspec", type=("build", "run"))
    depends_on("py-psutil", type=("build", "run"))

    with when("engine=ray"):
        depends_on("py-ray@1.4:+default", type=("build", "run"))
        depends_on("py-pyarrow@4.0.1:", type=("build", "run"))
        depends_on("py-redis@3.5:3", type=("build", "run"))

    with when("engine=dask"):
        depends_on("py-dask@2.22:", type=("build", "run"))
        depends_on("py-distributed@2.22:", type=("build", "run"))
        depends_on("py-pickle5", when="^python@:3.7", type=("build", "run"))

    def setup_run_environment(self, env):
        # modin/config/envvars.py
        env.set("MODIN_ENGINE", self.spec.variants["engine"].value)