#! /usr/bin/env python

from distutils.core import setup, Extension
import os
import subprocess

longdesc = """This is a simple SWIG wrapper on the main steering interface of
the APFEL library. It is used to create, query and use the APFEL data from 
a Python program.
"""

## Extension definition
import os
wrapsrc = './apfel_wrap.cc'
incdir_src = os.path.abspath('../include')
incdir_build = os.path.abspath('../include')
libdir = os.path.abspath('../lib')
cxxargs = '-g -O2'.split()
ldargs = ''.split()

def get_status_output(*args):
    p = subprocess.Popen(*args, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell=True)
    stdout, stderr = p.communicate()
    return p.returncode, stdout

status, result = get_status_output(["lhapdf-config","--version"])
if status == 0:
    lhapdfdir = os.popen('lhapdf-config --libdir').read()
    ext = Extension('_apfel',
                [wrapsrc],
                include_dirs=[incdir_src, incdir_build],
                library_dirs=[libdir, os.path.join(libdir,'.libs'), lhapdfdir.replace('\n','')],
                extra_compile_args = cxxargs,
                extra_link_args = ldargs,
                libraries=['APFEL','LHAPDF'])
else:    
    ext = Extension('_apfel',
                [wrapsrc],
                include_dirs=[incdir_src, incdir_build],
                library_dirs=[libdir, os.path.join(libdir,'.libs')],
                extra_compile_args = cxxargs,
                extra_link_args = ldargs,
                libraries=['APFEL'])

## Setup definition
setup(name = 'APFEL',
      version = '3.0.6',
      #include_package_data = True,
      ext_modules=[ext],
      py_modules = ['apfel'],

      author = ['Valerio Bertone'],
      author_email = 'valerio.bertone@cern.ch',
      url = 'https://github.com/vbertone/apfel',
      description = 'A PDF Evolution Library',
      long_description = longdesc,
      keywords = 'PDFs, FFs, DGLAP, DIS, structure functions',
      license = 'GPL',
      )