import sys
from os import path

from setuptools import find_packages, setup

import versioneer

# NOTE: This file must remain Python 2 compatible for the foreseeable future,
# to ensure that we error out properly for people with outdated setuptools
# and/or pip.
min_version = (3, 6)
if sys.version_info < min_version:
    error = """
bluesky-widgets does not support Python {0}.{1}.
Python {2}.{3} and above is required. Check your Python version like so:

python3 --version

This may be due to an out-of-date pip. Make sure you have pip >= 9.0.1.
Upgrade pip like so:

pip install --upgrade pip
""".format(
        *(sys.version_info[:2] + min_version)
    )
    sys.exit(error)

here = path.abspath(path.dirname(__file__))

with open(path.join(here, "README.rst"), encoding="utf-8") as readme_file:
    readme = readme_file.read()


def read_requirements(requirements_filename):
    with open(path.join(here, requirements_filename)) as requirements_file:
        # Parse requirements.txt, ignoring any commented-out lines.
        requirements = [line for line in requirements_file.read().splitlines() if not line.startswith("#")]
    return requirements


requirements = read_requirements("requirements.txt")

# TODO Some of the views do not require matplotlib. Should that get its own
# group? Seems a little much to ask the user to manage all this, so I am
# erring on the side of inclusion for now.
extras_require = {
    key: read_requirements(f"requirements-{key}.txt") for key in ["examples", "jupyter", "pyside2", "pyqt5"]
}
extras_require["complete"] = sorted(set(sum(extras_require.values(), [])))

setup(
    name="bluesky-widgets",
    version=versioneer.get_version(),
    cmdclass=versioneer.get_cmdclass(),
    description="Toolbox of widgets for visualizing streaming data",
    long_description=readme,
    author="Brookhaven National Lab",
    author_email="dallan@bnl.gov",
    url="https://github.com/bluesky/bluesky-widgets",
    python_requires=">={}".format(".".join(str(n) for n in min_version)),
    packages=find_packages(exclude=["docs", "tests"]),
    entry_points={
        "console_scripts": [
            "queue-monitor = bluesky_widgets.apps.queue_monitor.main:main"
            # 'command = some.module:some_function',
        ],
    },
    include_package_data=True,
    package_data={
        "bluesky_widgets": [
            # When adding files here, remember to update MANIFEST.in as well,
            # or else they will not be included in the distribution on PyPI!
            # 'path/to/data_file',
        ]
    },
    install_requires=requirements,
    extras_require=extras_require,
    license="BSD (3-clause)",
    classifiers=[
        "Development Status :: 2 - Pre-Alpha",
        "Natural Language :: English",
        "Programming Language :: Python :: 3",
    ],
)
