# pylint: disable=no-name-in-module,import-error,missing-class-docstring
import os
import subprocess
import sys
import shutil
import glob
import multiprocessing
import platform
from distutils.command.build import build as st_build
from distutils.util import get_platform

from setuptools import setup
from setuptools.command.develop import develop as st_develop
from setuptools.command.sdist import sdist as st_sdist
from setuptools.errors import LibError

PROJECT_DIR = os.path.dirname(os.path.realpath(__file__))
LIB_DIR = os.path.join(PROJECT_DIR, "pyvex", "lib")
INCLUDE_DIR = os.path.join(PROJECT_DIR, "pyvex", "include")


if sys.platform in ("win32", "cygwin"):
    LIBRARY_FILE = "pyvex.dll"
    STATIC_LIBRARY_FILE = "pyvex.lib"
elif sys.platform == "darwin":
    LIBRARY_FILE = "libpyvex.dylib"
    STATIC_LIBRARY_FILE = "libpyvex.a"
else:
    LIBRARY_FILE = "libpyvex.so"
    STATIC_LIBRARY_FILE = "libpyvex.a"


VEX_LIB_NAME = "vex"  # can also be vex-amd64-linux
VEX_PATH = os.path.abspath(os.path.join(PROJECT_DIR, "vex"))


def _build_vex():
    if len(os.listdir(VEX_PATH)) == 0:
        raise LibError(
            "vex submodule not cloned correctly, aborting.\nThis may be fixed with `git submodule update --init`"
        )

    e = os.environ.copy()
    e["MULTIARCH"] = "1"
    e["DEBUG"] = "1"

    if sys.platform == "win32":
        cmd = ["nmake", "/f", "Makefile-msvc", "all"]
    elif shutil.which("gmake") is not None:
        cmd = ["gmake", "-f", "Makefile-gcc", "-j", str(multiprocessing.cpu_count()), "all"]
    else:
        cmd = ["make", "-f", "Makefile-gcc", "-j", str(multiprocessing.cpu_count()), "all"]

    try:
        subprocess.run(cmd, cwd=VEX_PATH, env=e, check=True)
    except FileNotFoundError as err:
        raise LibError("Couldn't find " + cmd[0] + " in PATH") from err
    except subprocess.CalledProcessError as err:
        raise LibError("Error while building libvex: " + str(err)) from err


def _build_pyvex():
    e = os.environ.copy()
    e["VEX_LIB_PATH"] = VEX_PATH
    e["VEX_INCLUDE_PATH"] = os.path.join(VEX_PATH, "pub")
    e["VEX_LIB_FILE"] = os.path.join(VEX_PATH, "libvex.lib")

    if sys.platform == "win32":
        cmd = ["nmake", "/f", "Makefile-msvc"]
    elif shutil.which("gmake") is not None:
        cmd = ["gmake", "-f", "Makefile", "-j", str(multiprocessing.cpu_count())]
    else:
        cmd = ["make", "-f", "Makefile", "-j", str(multiprocessing.cpu_count())]

    try:
        subprocess.run(cmd, cwd="pyvex_c", env=e, check=True)
    except FileNotFoundError as err:
        raise LibError("Couldn't find " + cmd[0] + " in PATH") from err
    except subprocess.CalledProcessError as err:
        raise LibError("Error while building libpyvex: " + str(err)) from err


def _shuffle_files():
    shutil.rmtree(LIB_DIR, ignore_errors=True)
    shutil.rmtree(INCLUDE_DIR, ignore_errors=True)
    os.mkdir(LIB_DIR)
    os.mkdir(INCLUDE_DIR)

    pyvex_c_dir = os.path.join(PROJECT_DIR, "pyvex_c")

    shutil.copy(os.path.join(pyvex_c_dir, LIBRARY_FILE), LIB_DIR)
    shutil.copy(os.path.join(pyvex_c_dir, STATIC_LIBRARY_FILE), LIB_DIR)
    shutil.copy(os.path.join(pyvex_c_dir, "pyvex.h"), INCLUDE_DIR)
    for f in glob.glob(os.path.join(VEX_PATH, "pub", "*")):
        shutil.copy(f, INCLUDE_DIR)


def _clean_bins():
    shutil.rmtree(LIB_DIR, ignore_errors=True)
    shutil.rmtree(INCLUDE_DIR, ignore_errors=True)


def _build_ffi():
    sys.path.append(".")  # PEP 517 doesn't include . in sys.path
    import make_ffi  # pylint: disable=import-outside-toplevel

    sys.path.pop()

    make_ffi.doit(os.path.join(VEX_PATH, "pub"))


class build(st_build):
    def run(self, *args):
        self.execute(_build_vex, (), msg="Building libVEX")
        self.execute(_build_pyvex, (), msg="Building libpyvex")
        self.execute(_shuffle_files, (), msg="Copying libraries and headers")
        self.execute(_build_ffi, (), msg="Creating CFFI defs file")
        super().run(*args)


class develop(st_develop):
    def run(self):
        self.run_command("build")
        super().run()


class sdist(st_sdist):
    def run(self, *args):
        self.execute(_clean_bins, (), msg="Removing binaries")
        super().run(*args)


cmdclass = {
    "build": build,
    "develop": develop,
    "sdist": sdist,
}

try:
    from setuptools.command.editable_wheel import editable_wheel as st_editable_wheel

    class editable_wheel(st_editable_wheel):
        def run(self):
            self.run_command("build")
            super().run()

    cmdclass["editable_wheel"] = editable_wheel
except ModuleNotFoundError:
    pass

if "bdist_wheel" in sys.argv and "--plat-name" not in sys.argv:
    sys.argv.append("--plat-name")
    name = get_platform()
    if "linux" in name:
        sys.argv.append("manylinux2014_" + platform.machine())
    else:
        # https://www.python.org/dev/peps/pep-0425/
        sys.argv.append(name.replace(".", "_").replace("-", "_"))

setup(cmdclass=cmdclass)