# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import sys
import re
import fnmatch

import setuptools
from setuptools import setup
from distutils.core import Command

try:
    import epydoc  # NOQA

    has_epydoc = True
except ImportError:
    has_epydoc = False

# NOTE: Those functions are intentionally moved in-line to prevent setup.py dependening on any
# Libcloud code which depends on libraries such as typing, enum, requests, etc.
# START: Taken From Twisted Python which licensed under MIT license
# https://github.com/powdahound/twisted/blob/master/twisted/python/dist.py
# https://github.com/powdahound/twisted/blob/master/LICENSE

# Names that are excluded from globbing results:
EXCLUDE_NAMES = ["{arch}", "CVS", ".cvsignore", "_darcs", "RCS", "SCCS", ".svn"]
EXCLUDE_PATTERNS = ["*.py[cdo]", "*.s[ol]", ".#*", "*~", "*.py"]


def _filter_names(names):
    """
    Given a list of file names, return those names that should be copied.
    """
    names = [n for n in names if n not in EXCLUDE_NAMES]
    # This is needed when building a distro from a working
    # copy (likely a checkout) rather than a pristine export:
    for pattern in EXCLUDE_PATTERNS:
        names = [
            n
            for n in names
            if not fnmatch.fnmatch(n, pattern) and not n.endswith(".py")
        ]
    return names


def relative_to(base, relativee):
    """
    Gets 'relativee' relative to 'basepath'.

    i.e.,

    >>> relative_to('/home/', '/home/radix/')
    'radix'
    >>> relative_to('.', '/home/radix/Projects/Twisted')
    'Projects/Twisted'

    The 'relativee' must be a child of 'basepath'.
    """
    basepath = os.path.abspath(base)
    relativee = os.path.abspath(relativee)
    if relativee.startswith(basepath):
        relative = relativee[len(basepath) :]
        if relative.startswith(os.sep):
            relative = relative[1:]
        return os.path.join(base, relative)
    raise ValueError("%s is not a subpath of %s" % (relativee, basepath))


def get_packages(dname, pkgname=None, results=None, ignore=None, parent=None):
    """
    Get all packages which are under dname. This is necessary for
    Python 2.2's distutils. Pretty similar arguments to getDataFiles,
    including 'parent'.
    """
    parent = parent or ""
    prefix = []
    if parent:
        prefix = [parent]
    bname = os.path.basename(dname)
    ignore = ignore or []
    if bname in ignore:
        return []
    if results is None:
        results = []
    if pkgname is None:
        pkgname = []
    subfiles = os.listdir(dname)
    abssubfiles = [os.path.join(dname, x) for x in subfiles]

    if "__init__.py" in subfiles:
        results.append(prefix + pkgname + [bname])
        for subdir in filter(os.path.isdir, abssubfiles):
            get_packages(
                subdir,
                pkgname=pkgname + [bname],
                results=results,
                ignore=ignore,
                parent=parent,
            )
    res = [".".join(result) for result in results]
    return res


def get_data_files(dname, ignore=None, parent=None):
    """
    Get all the data files that should be included in this distutils Project.

    'dname' should be the path to the package that you're distributing.

    'ignore' is a list of sub-packages to ignore.  This facilitates
    disparate package hierarchies.  That's a fancy way of saying that
    the 'twisted' package doesn't want to include the 'twisted.conch'
    package, so it will pass ['conch'] as the value.

    'parent' is necessary if you're distributing a subpackage like
    twisted.conch.  'dname' should point to 'twisted/conch' and 'parent'
    should point to 'twisted'.  This ensures that your data_files are
    generated correctly, only using relative paths for the first element
    of the tuple ('twisted/conch/*').
    The default 'parent' is the current working directory.
    """
    parent = parent or "."
    ignore = ignore or []
    result = []
    for directory, subdirectories, filenames in os.walk(dname):
        resultfiles = []
        for exname in EXCLUDE_NAMES:
            if exname in subdirectories:
                subdirectories.remove(exname)
        for ig in ignore:
            if ig in subdirectories:
                subdirectories.remove(ig)
        for filename in _filter_names(filenames):
            resultfiles.append(filename)
        if resultfiles:
            for filename in resultfiles:
                file_path = os.path.join(directory, filename)
                if parent:
                    file_path = file_path.replace(parent + os.sep, "")
                result.append(file_path)

    return result


# END: Taken from Twisted


# Different versions of python have different requirements.  We can't use
# libcloud.utils.py3 here because it relies on backports dependency being
# installed / available
PY_pre_36 = sys.version_info < (3, 6, 0)

HTML_VIEWSOURCE_BASE = "https://svn.apache.org/viewvc/libcloud/trunk"
PROJECT_BASE_DIR = "https://libcloud.apache.org"
TEST_PATHS = [
    "libcloud/test",
    "libcloud/test/common",
    "libcloud/test/compute",
    "libcloud/test/storage",
    "libcloud/test/loadbalancer",
    "libcloud/test/dns",
    "libcloud/test/container",
    "libcloud/test/backup",
]
DOC_TEST_MODULES = [
    "libcloud.compute.drivers.dummy",
    "libcloud.storage.drivers.dummy",
    "libcloud.dns.drivers.dummy",
    "libcloud.container.drivers.dummy",
    "libcloud.backup.drivers.dummy",
]

SUPPORTED_VERSIONS = ["PyPy 3.6+", "Python 3.6+"]

# NOTE: python_version syntax is only supported when build system has
# setuptools >= 36.2
# For installation, minimum required pip version is 1.4
# Reference: https://hynek.me/articles/conditional-python-dependencies/
# We rely on >= 2.26.0 to avoid issues with LGPL transitive dependency
# See https://github.com/apache/libcloud/issues/1594 for more context
INSTALL_REQUIREMENTS = []
INSTALL_REQUIREMENTS.append("requests>=2.26.0")


setuptools_version = tuple(setuptools.__version__.split(".")[0:2])
setuptools_version = tuple([int(c) for c in setuptools_version])

if setuptools_version < (36, 2):
    if "bdist_wheel" in sys.argv:
        # NOTE: We need to do that because we use universal wheel
        msg = (
            "Need to use latest version of setuptools when building wheels to ensure included "
            "metadata is correct. Current version: %s" % (setuptools.__version__)
        )
        raise RuntimeError(msg)

TEST_REQUIREMENTS = [
    "mock",
    "requests_mock",
    "pytest",
    "pytest-runner",
] + INSTALL_REQUIREMENTS

if PY_pre_36:
    version = ".".join([str(x) for x in sys.version_info[:3]])
    print(
        "Python version %s is not supported. Supported versions are: %s. "
        "Latest version which supports Python 2.7 and Python 3 < 3.5.0 is "
        "Libcloud v2.8.2 and Libcloud v3.4.0 for Python 3.5."
        % (version, ", ".join(SUPPORTED_VERSIONS))
    )
    sys.exit(1)


def read_version_string():
    version = None
    cwd = os.path.dirname(os.path.abspath(__file__))
    version_file = os.path.join(cwd, "libcloud/__init__.py")

    with open(version_file) as fp:
        content = fp.read()

    match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", content, re.M)

    if match:
        version = match.group(1)
        return version

    raise Exception("Cannot find version in libcloud/__init__.py")


def forbid_publish():
    argv = sys.argv
    if "upload" in argv:
        print(
            "You shouldn't use upload command to upload a release to PyPi. "
            "You need to manually upload files generated using release.sh "
            "script.\n"
            'For more information, see "Making a release section" in the '
            "documentation"
        )
        sys.exit(1)


class ApiDocsCommand(Command):
    description = "generate API documentation"
    user_options = []

    def initialize_options(self):
        pass

    def finalize_options(self):
        pass

    def run(self):
        if not has_epydoc:
            raise RuntimeError('Missing "epydoc" package!')

        os.system(
            "pydoctor"
            " --add-package=libcloud"
            " --project-name=libcloud"
            " --make-html"
            ' --html-viewsource-base="%s"'
            " --project-base-dir=`pwd`"
            ' --project-url="%s"' % (HTML_VIEWSOURCE_BASE, PROJECT_BASE_DIR)
        )


forbid_publish()

needs_pytest = {"pytest", "test", "ptr"}.intersection(sys.argv)
pytest_runner = ["pytest-runner"] if needs_pytest else []

setup(
    name="apache-libcloud",
    version=read_version_string(),
    description="A standard Python library that abstracts away differences"
    + " among multiple cloud provider APIs. For more information"
    + " and documentation, please see https://libcloud.apache.org",
    long_description=open("README.rst").read(),
    author="Apache Software Foundation",
    author_email="dev@libcloud.apache.org",
    install_requires=INSTALL_REQUIREMENTS,
    python_requires=">=3.6, <4",
    packages=get_packages("libcloud"),
    package_dir={
        "libcloud": "libcloud",
    },
    package_data={
        "libcloud": get_data_files("libcloud", parent="libcloud") + ["py.typed"],
    },
    license="Apache License (2.0)",
    url="https://libcloud.apache.org/",
    setup_requires=pytest_runner,
    tests_require=TEST_REQUIREMENTS,
    cmdclass={
        "apidocs": ApiDocsCommand,
    },
    zip_safe=False,
    classifiers=[
        "Development Status :: 5 - Production/Stable",
        "Environment :: Console",
        "Intended Audience :: Developers",
        "Intended Audience :: System Administrators",
        "License :: OSI Approved :: Apache Software License",
        "Operating System :: OS Independent",
        "Programming Language :: Python",
        "Topic :: Software Development :: Libraries :: Python Modules",
        "Programming Language :: Python :: 3",
        "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",
        "Programming Language :: Python :: Implementation :: PyPy",
    ],
)