# -*-python-*-
#--------------------------------------------------------------------------------
#
#       OpenAlea.SConsX: SCons extension package for building platform
#                        independant packages.
#
#       Copyright 2006-2009 INRIA - CIRAD - INRA
#
#       File author(s): Christophe Pradal <christophe.prada@cirad.fr>
#
#       Distributed under the Cecill-C License.
#       See accompanying file LICENSE.txt or copy at
#           http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.html
#
#       OpenAlea WebSite : http://openalea.gforge.inria.fr
#
#--------------------------------------------------------------------------------
""" Gnuplot configure environment. """

__license__ = "Cecill-C"
__revision__ = "$Id$"


import os, sys
from openalea.sconsx.config import *


class Gnuplot:
   def __init__(self, config):
      self.name = 'gnuplot'
      self.config = config
      self._default = {}


   def default(self):
      if CONDA_ENV:
         self._default['bin'] = pj(CONDA_PREFIX,'bin')
      elif isinstance(platform, Posix):
         self._default['bin'] = pj('/usr','bin')
      elif isinstance(platform, Win32):
         self._default['bin'] = 'C:\\'


   def option( self, opts):

      self.default()

      opts.Add(PathVariable('gnuplot_bin',
                            'Gnuplot binary path',
                            self._default['bin']))


   def update(self, env):
      """ Update the environment with specific flags """
      pass


   def configure(self, config):
      g = WhereIs("gnuplot", config.conf.env['gnuplot_bin'])

      if not g:
        s = """
        Warning !!! Gnuplot not found !
        Please, install Gnuplot and try again.
        """
        print(s)
        sys.exit(-1)


def create(config):
   " Create gnuplot tool "
   gnuplot = Gnuplot(config)

   return gnuplot