# Licensed under a 3-clause BSD style license - see PYFITS.rst

import sys
from collections import defaultdict
from distutils.core import Extension
from os import path


def get_extensions():
    import numpy as np

    exts = []

    # malloc
    mac_incl_path = "/usr/include/malloc"

    # Some READTHEDOCS hacks - see
    # https://github.com/pyFFTW/pyFFTW/pull/161/files
    # https://github.com/pyFFTW/pyFFTW/pull/162/files
    include_dirs = [path.join(sys.prefix, "include")]
    library_dirs = [path.join(sys.prefix, "lib")]

    # all need these:
    include_dirs.extend([np.get_include(), mac_incl_path, "gala", "gala/potential"])

    cfg = defaultdict(list)
    cfg["include_dirs"].extend(include_dirs)
    cfg["library_dirs"].extend(library_dirs)
    cfg["extra_compile_args"].append("--std=gnu99")
    cfg["sources"].append("gala/potential/scf/computecoeff.pyx")
    cfg["sources"].append("gala/potential/scf/src/bfe_helper.c")
    cfg["sources"].append("gala/potential/scf/src/coeff_helper.c")
    exts.append(Extension("gala.potential.scf._computecoeff", **cfg))

    cfg = defaultdict(list)
    cfg["include_dirs"].extend(include_dirs)
    cfg["library_dirs"].extend(library_dirs)
    cfg["extra_compile_args"].append("--std=gnu99")
    cfg["sources"].append("gala/potential/potential/src/cpotential.c")
    cfg["sources"].append("gala/potential/potential/builtin/builtin_potentials.c")
    cfg["sources"].append("gala/potential/scf/bfe.pyx")
    cfg["sources"].append("gala/potential/scf/src/bfe.c")
    cfg["sources"].append("gala/potential/scf/src/bfe_helper.c")
    exts.append(Extension("gala.potential.scf._bfe", **cfg))

    cfg = defaultdict(list)
    cfg["include_dirs"].extend(include_dirs)
    cfg["library_dirs"].extend(library_dirs)
    cfg["extra_compile_args"].append("--std=gnu99")
    cfg["sources"].append("gala/potential/scf/bfe_class.pyx")
    cfg["sources"].append("gala/potential/scf/src/bfe.c")
    cfg["sources"].append("gala/potential/scf/src/bfe_helper.c")
    exts.append(Extension("gala.potential.scf._bfe_class", **cfg))

    return exts


def get_package_data():
    return {
        "gala.potential.scf": [
            "*.pyx",
            "tests/data/*",
            "tests/data/*.csv",
            "tests/data/*.dat.gz",
            "tests/data/*.coeff",
            "*.h",
            "*.pyx",
            "*.pxd",
            "src/*.c",
            "src/*.h",
        ]
    }
