from __future__ import print_function
from __future__ import absolute_import
from setuptools.command.build_py import build_py
# Work around mbcs bug in distutils.
# http://bugs.python.org/issue10945
import codecs
try:
    codecs.lookup('mbcs')
except LookupError:
    ascii = codecs.lookup('ascii')
    func = lambda name, enc=ascii: {True: enc}.get(name=='mbcs')
    codecs.register(func)

from setuptools import setup, Extension
import glob, os, shutil, fnmatch, platform, sys

version = '2.2.1'


def generate_content():
    # generate the file content...
    from generator import mavgen, mavparse

    # path to message_definitions directory
    if os.getenv("MDEF",None) is not None:
        mdef_paths = [os.getenv("MDEF")]
    else:
        mdef_paths = [os.path.join('..', 'message_definitions'),
                      os.path.join('mavlink', 'message_definitions'),
                      os.path.join('..', 'mavlink', 'message_definitions'),
                      os.path.join('message_definitions'),
        ]

    for path in mdef_paths:
        mdef_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), path)
        if os.path.exists(mdef_path):
            print("Using message definitions from %s" % mdef_path)
            break

    dialects_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'dialects')

    v10_dialects = glob.glob(os.path.join(mdef_path, 'v1.0', '*.xml'))

    # for now v2.0 uses same XML files as v1.0
    v20_dialects = glob.glob(os.path.join(mdef_path, 'v1.0', '*.xml'))

    should_generate = not "NOGEN" in os.environ
    if should_generate:
        if len(v10_dialects) == 0:
            print("No XML message definitions found")
            sys.exit(1)

        for xml in v10_dialects:
            shutil.copy(xml, os.path.join(dialects_path, 'v10'))
        for xml in v20_dialects:
            shutil.copy(xml, os.path.join(dialects_path, 'v20'))

        for xml in v10_dialects:
            dialect = os.path.basename(xml)[:-4]
            wildcard = os.getenv("MAVLINK_DIALECT",'*')
            if not fnmatch.fnmatch(dialect, wildcard):
                continue
            print("Building %s for protocol 1.0" % xml)
            if not mavgen.mavgen_python_dialect(dialect, mavparse.PROTOCOL_1_0):
                print("Building failed %s for protocol 1.0" % xml)
                sys.exit(1)

        for xml in v20_dialects:
            dialect = os.path.basename(xml)[:-4]
            wildcard = os.getenv("MAVLINK_DIALECT",'*')
            if not fnmatch.fnmatch(dialect, wildcard):
                continue
            print("Building %s for protocol 2.0" % xml)
            if not mavgen.mavgen_python_dialect(dialect, mavparse.PROTOCOL_2_0):
                print("Building failed %s for protocol 2.0" % xml)
                sys.exit(1)

extensions = []  # Assume we might be unable to build native code
if platform.system() != 'Windows':
    extensions = [ Extension('mavnative',
                   sources=['mavnative/mavnative.c'],
                   include_dirs=[
                       'generator/C/include_v1.0',
                       'generator/C/include_v2.0',
                       'mavnative'
                       ]
                   ) ]
else:
    print("Skipping mavnative due to Windows possibly missing a compiler...")


class custom_build_py(build_py):
    def run(self):
        generate_content()

        # distutils uses old-style classes, so no super()
        build_py.run(self)


setup (name = 'pymavlink',
       version = version,
       description = 'Python MAVLink code',
       long_description = '''A Python library for handling MAVLink protocol streams and log files. This allows for the creation of simple scripts to analyse telemetry logs from autopilots such as ArduPilot which use the MAVLink protocol. See the scripts that come with the package for examples of small, useful scripts that use pymavlink. For more information about the MAVLink protocol see http://qgroundcontrol.org/mavlink/''',
       url = 'http://github.com/mavlink/mavlink',
       classifiers=['Development Status :: 4 - Beta',
                    'Environment :: Console',
                    'Intended Audience :: Science/Research',
                    'License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)',
                    'Operating System :: OS Independent',
                    'Programming Language :: Python :: 2.7',
                    'Programming Language :: Python :: 3.5',
                    'Topic :: Scientific/Engineering'
                    ],
       license='LGPLv3',
       package_dir = { 'pymavlink' : '.' },
       package_data = { 'pymavlink.dialects.v10' : ['*.xml'],
                        'pymavlink.dialects.v20' : ['*.xml'],
                        'pymavlink.generator'    : [ '*.xsd',
                                                     'java/lib/*.*',
                                                     'java/lib/Messages/*.*',
                                                     'C/include_v1.0/*.h',
                                                     'C/include_v1.0/*.hpp',
                                                     'C/include_v2.0/*.h',
                                                     'C/include_v2.0/*.hpp',
                                                     'CPP11/include_v2.0/*.hpp', ],
                        'pymavlink' : ['mavnative/*.h'],
                        'pymavlink' : ['message_definitions/v*/*.xml'] },
       packages = ['pymavlink',
                   'pymavlink.generator',
                   'pymavlink.dialects',
                   'pymavlink.dialects.v10',
                   'pymavlink.dialects.v20'],
       scripts = [ 'tools/magfit_delta.py', 'tools/mavextract.py',
                   'tools/mavgraph.py', 'tools/mavparmdiff.py',
                   'tools/mavtogpx.py', 'tools/magfit_gps.py',
                   'tools/mavflightmodes.py', 'tools/mavlogdump.py',
                   'tools/mavparms.py', 'tools/magfit_motors.py',
                   'tools/mavflighttime.py', 'tools/mavloss.py',
                   'tools/mavplayback.py', 'tools/magfit.py',
                   'tools/mavgpslock.py',
                   'tools/mavmission.py',
                   'tools/mavsigloss.py',
                   'tools/mavsearch.py',
                   'tools/mavtomfile.py',
                   'tools/mavgen.py',
                   'tools/mavkml.py',
                   'tools/mavfft.py',
                   'tools/mavsummarize.py',
                   'tools/MPU6KSearch.py'],
       install_requires=[
            'future',
            'lxml',
       ],
       cmdclass={'build_py': custom_build_py},
       ext_modules = extensions
       )
