import codecs
import re
import os
from setuptools import setup, Extension, find_packages
from Cython.Build import cythonize
import numpy as np  # for np.get_include()


###############################################################################

NAME = 'ZigZag'

PACKAGES = find_packages(where=".")

META_PATH = os.path.join("zigzag", "__init__.py")

KEYWORDS = ["statistics", "time series", "switchpoints"]

CLASSIFIERS = [
        "Development Status :: 4 - Beta",
        "Intended Audience :: Science/Research",
        "Natural Language :: English",
        "License :: OSI Approved :: BSD License",
        "Operating System :: OS Independent",
        "Programming Language :: Python",
        "Programming Language :: Python :: 2",
        "Programming Language :: Python :: 2.6",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.3",
        "Programming Language :: Python :: 3.4",
        "Programming Language :: Python :: 3.5",
        "Programming Language :: Python :: Implementation :: CPython",
        "Programming Language :: Python :: Implementation :: PyPy",
        "Topic :: Software Development :: Libraries :: Python Modules",
]

INSTALL_REQUIRES = []

###############################################################################

SELF_DIR = os.path.abspath(os.path.dirname(__file__))


def read_file_safely(*path_parts):
    with codecs.open(os.path.join(SELF_DIR, *path_parts), "rb", "utf-8") as f:
        return f.read()


META_FILE = read_file_safely(META_PATH)

META_VARS_RE = re.compile(r"^__([_a-zA-Z0-9]+)__ = ['\"]([^'\"]*)['\"]", re.M)

META_VARS = dict(META_VARS_RE.findall(META_FILE))

###############################################################################

README_FILE = os.path.join(os.path.dirname(__file__), 'README.rst')


CYTHON_DEBUG = '1' if 'CYTHON_DEBUG' in os.environ else '0'


EXT = Extension("*",
                ["./zigzag/*.pyx"],
                define_macros=[('CYTHON_TRACE', CYTHON_DEBUG),
                               ('CYTHON_TRACE_NOGIL', CYTHON_DEBUG),
                               ('CYTHON_BINDING', CYTHON_DEBUG),
                               ('CYTHON_FAST_PYCCALL', '1')],
                include_dirs=[".", np.get_include()])


if __name__ == "__main__":
    setup(
        name=NAME,
        ext_modules=cythonize([EXT],
                              compiler_directives={'embedsignature': True,
                              'linetrace': True}),
        package_data = {'zigzag': ['*.pxd']},
        include_package_data=True,
        description=META_VARS["description"],
        license=META_VARS["license"],
        url=META_VARS["uri"],
        version=META_VARS["version"],
        author=META_VARS["author"],
        author_email=META_VARS["email"],
        maintainer=META_VARS["author"],
        maintainer_email=META_VARS["email"],
        keywords=KEYWORDS,
        long_description=read_file_safely("README.rst"),
        packages=PACKAGES,
        package_dir={"": "."},
        zip_safe=False,
        classifiers=CLASSIFIERS,
        install_requires=INSTALL_REQUIRES,
    )