import os
import re
import sys
import platform
import subprocess
import shlex

import shutil
from setuptools import setup, Extension, find_packages
from setuptools.command.build_ext import build_ext
from distutils.version import LooseVersion

# Convert distutils Windows platform specifiers to CMake -A arguments
PLAT_TO_CMAKE = {
    "win32": "Win32",
    "win-amd64": "x64",
    "win-arm32": "ARM",
    "win-arm64": "ARM64",
}

class CMakeExtension(Extension):
    def __init__(self, name, sourcedir=''):
        Extension.__init__(self, name, sources=[])
        self.sourcedir = os.path.abspath(sourcedir)


class CMakeBuild(build_ext):

    def build_extension(self, ext):
        
        extdir = os.path.abspath(os.path.dirname(self.get_ext_fullpath(ext.name)))

        # required for auto-detection & inclusion of auxiliary "native" libs
        if not extdir.endswith(os.path.sep):
            extdir += os.path.sep

        debug = int(os.environ.get("DEBUG", 0)) if self.debug is None else self.debug
        cfg = "Debug" if debug else "Release"

        # CMake lets you override the generator - we need to check this.
        # Can be set with Conda-Build, for example.
        cmake_generator = os.environ.get("CMAKE_GENERATOR", "")

        # Set Python_EXECUTABLE instead if you use PYBIND11_FINDPYTHON
        # EXAMPLE_VERSION_INFO shows you how to pass a value into the C++ code
        # from Python.
        cmake_args = [
            "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={}".format(extdir),
            "-DPYTHON_EXECUTABLE={}".format(sys.executable),
            "-DCMAKE_BUILD_TYPE={}".format(cfg),  # not used on MSVC, but no harm
        ]
        build_args = []

        # In this example, we pass in the version to C++. You might not need to.
        cmake_args += [
            "-DEXAMPLE_VERSION_INFO={}".format(self.distribution.get_version())
        ]

        if self.compiler.compiler_type != "msvc":
            # Using Ninja-build since it a) is available as a wheel and b)
            # multithreads automatically. MSVC would require all variables be
            # exported for Ninja to pick it up, which is a little tricky to do.
            # Users can override the generator with CMAKE_GENERATOR in CMake
            # 3.15+.
            if not cmake_generator:
                try:
                    import ninja  # noqa: F401

                    cmake_args += ["-GNinja"]
                except ImportError:
                    pass

        else:

            # Single config generators are handled "normally"
            single_config = any(x in cmake_generator for x in {"NMake", "Ninja"})

            # CMake allows an arch-in-generator style for backward compatibility
            contains_arch = any(x in cmake_generator for x in {"ARM", "Win64"})

            # Specify the arch if using MSVC generator, but only if it doesn't
            # contain a backward-compatibility arch spec already in the
            # generator name.
            if not single_config and not contains_arch:
                cmake_args += ["-A", PLAT_TO_CMAKE[self.plat_name]]

            # Multi-config generators have a different way to specify configs
            if not single_config:
                cmake_args += [
                    "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}".format(cfg.upper(), extdir),
                    "-DENABLE_STRATEGA_BINDINGS=ON"
                ]
                build_args += ["--config", cfg]

        if sys.platform.startswith("darwin"):
            # Cross-compile support for macOS - respect ARCHFLAGS if set
            archs = re.findall(r"-arch (\S+)", os.environ.get("ARCHFLAGS", ""))
            if archs:
                cmake_args += ["-DCMAKE_OSX_ARCHITECTURES={}".format(";".join(archs))]

        # Set CMAKE_BUILD_PARALLEL_LEVEL to control the parallel build level
        # across all generators.
        if "CMAKE_BUILD_PARALLEL_LEVEL" not in os.environ:
            # self.parallel is a Python 3 only way to set parallel jobs by hand
            # using -j in the build_ext call, not supported by pip or PyPA-build.
            if hasattr(self, "parallel") and self.parallel:
                # CMake 3.12+ only.
                build_args += ["-j{}".format(self.parallel)]

        if not os.path.exists(self.build_temp):
            os.makedirs(self.build_temp)

        subprocess.check_call(
            ["cmake", ext.sourcedir] + cmake_args, cwd=self.build_temp
        )
        subprocess.check_call(
            ["cmake", "--build", "."] + build_args , cwd=self.build_temp
        )


from os import path

python_directory = path.join(path.abspath(path.dirname(__file__)), "src/python")
with open(path.join(python_directory, "README.md")) as f:
    long_description = f.read()

setup(
    name='Stratega',
    version='0.0.16',
    author='Diego Perez-Liebana, Alexander Dockhorn, Jorge Hurtado Grueso, Dominik Jeurissen',
    description='Stratega python bindings',
    long_description=long_description,
    cmake_args=shlex.split(os.environ.get('STRATEGA_EXTRA_CMAKE_ARGS', '')),
    long_description_content_type="text/markdown",
    ext_modules=[CMakeExtension('stratega')],
    cmdclass=dict(build_ext=CMakeBuild),
    url="",
    project_urls={
        "Github": "https://github.com/GAIGResearch/Stratega",
        "Community-Discord": "https://discord.com/invite/VVj8Y32DPK",
    },
    include_package_data=True,
    packages=['resources'],    
    package_dir={'resources': 'resources'},
    #package_data={'Stratega': stratega_package_data('Release')},
    package_data={
        'resources': ['assets/*frag'],
        'resources': ['assets/*.ttf'],
        'resources': ['assets/Tiles/*.png'],
        'resources': ['assets/Entities/*.png'],
        'resources': ['gameConfigurations/*.yaml'],
    },
    classifiers=[
        "Topic :: Scientific/Engineering :: Artificial Intelligence",
        "Intended Audience :: Science/Research",
        "Intended Audience :: Education",
        "Natural Language :: English",
        "Operating System :: MacOS :: MacOS X",
        "Operating System :: POSIX :: Linux",
        "Operating System :: Microsoft :: Windows",
        "Programming Language :: C++",
        "Programming Language :: Python :: 3 :: Only",
        "Programming Language :: Python :: 3.6",
        "Programming Language :: Python :: 3.7",
        "Programming Language :: Python :: 3.8",
        "Programming Language :: Python :: 3.9",
        "Programming Language :: Python :: 3.10",
        "Programming Language :: Python :: Implementation :: CPython",
    ],
    zip_safe=False,
)