from distutils.core import setup, Extension

import os,sys

TCLHOME=os.getenv("TCLHOME")
if not TCLHOME:
   print "TCLHOME not set : use /usr"
   TCLHOME="/usr"
TCLINCL=os.path.join(TCLHOME,"include")
TCLLIB=os.path.join(TCLHOME,"lib")

# _CS_gbo_ Ajout de TKHOME pour la modularité des installations. Si
# TKHOME n'est pas définie, elle prend la valeur de TCLHOME.
TKHOME=os.getenv("TKHOME")
if not TKHOME:
   print "TKHOME not set : use ", TCLHOME
   TKHOME=TCLHOME
TKINCL=os.path.join(TKHOME,"include")
TKLIB=os.path.join(TKHOME,"lib")

# _CS_gbo_ Ajout de TIXHOME pour la modularité des installations. Si
# TIXHOME n'est pas définie, elle prend la valeur de TCLHOME.
TIXHOME=os.getenv("TIXHOME")
if not TIXHOME:
   print "TIXHOME not set : use ", TCLHOME
   TIXHOME=TCLHOME
TIXINCL=os.path.join(TIXHOME,"include")
TIXLIB=os.path.join(TIXHOME,"lib")


QT_INCLUDES="@QT_INCLUDES@".split()
SIP_INCLUDES="@SIP_INCLUDES@".split()
QT_LIBS="@QT_MT_LIBS@".split()
SIP_LIBS="@SIP_LIBS@".split()
PYQT_LIBS="@PYQT_LIBS@".split()

PYDIR=sys.prefix
VERS="%s.%s" % (sys.version_info[0],sys.version_info[1])

def find_file(filename, std_dirs, paths):
    """Searches for the directory where a given file is located,
    and returns a possibly-empty list of additional directories, or None
    if the file couldn't be found at all.

    'filename' is the name of a file, such as readline.h or libcrypto.a.
    'std_dirs' is the list of standard system directories; if the
        file is found in one of them, no additional directives are needed.
    'paths' is a list of additional locations to check; if the file is
        found in one of them, the resulting list will contain the directory.
    """

    # Check the standard locations
    for dir in std_dirs:
        f = os.path.join(dir, filename)
        # if os.path.exists(f): return []
	# _CS_gbo_ A priori, c'est plutôt ce comportement qu'il faut implémenter
        if os.path.exists(f): return [dir]

    # Check the additional directories
    for dir in paths:
        f = os.path.join(dir, filename)
        if os.path.exists(f):
            return [dir]

    # Not found anywhere
    return None

inc_dirs=[TCLINCL,TKINCL,TIXINCL]
lib_dirs=[TCLLIB,TKLIB,TIXLIB]

# _CS_gbo_ Je pense qu'il faut dissocier la recherche dans les
# répertoires définis sur la base de TCLHOME (paramétrage utilisateur)
# de la recherche aux emplacement système par défaut. Par ailleurs, le
# positionnement du numéro de version sert ici à définir le nom de la
# bibliothèques à lié (libtcl8.3.so par exemple). Il serait plus
# pertinant de faire le même contrôle que pour les includes

tcl_includes = find_file('tcl.h', inc_dirs, [])
tk_includes = find_file('tk.h', inc_dirs, [])
if tcl_includes and tk_includes:
    # On recherche la bibliothèque "versionnées"
    for version in ['8.4', '8.3', '8.2', '8.1', '8.0']:
        libtcl = 'libtcl' + version + '.so'
        libtk  = 'libtk' + version + '.so'
        tcl_lib = find_file(libtcl, lib_dirs, [])
        tk_lib  = find_file(libtk, lib_dirs, [])
        if tcl_lib and tk_lib:
	    # On retiend ce numéro de version
            break


#
# Recherche des includes dans les emplacement système par
# défaut. Cette boucle est entammée uniquement si les include n'ont pas
# encore été déterminés.
#
if not tcl_includes or not tk_includes or not tcl_lib or not tk_lib:
   for version in ['8.4', '8.3', '8.2', '8.1', '8.0']:
       # Check for the include files on Debian, where
       # they're put in /usr/include/{tcl,tk}X.Y
       debian_tcl_include = [ '/usr/include/tcl' + version ]
       debian_tk_include =  [ '/usr/include/tk'  + version ] + debian_tcl_include
       tcl_includes = find_file('tcl.h', [], debian_tcl_include)
       tk_includes = find_file('tk.h', [], debian_tk_include)
       if tcl_includes and tk_includes:
          break
   # _CS_gbo_ Si quand bien même on ne trouve pas les éléments
   # recherchés, je pense qu'il faut arrêter le setup, il y a un problème
   # de configuration.
   if not tcl_includes or not tk_includes:
	print "setup.py: Impossible de définir la configuration Tcl/Tk"
	sys.exit(1)


print "Found Tk version:",version
print "Found Tcl includes:",tcl_includes
print "Found Tk includes:",tk_includes

include_dirs=[".", "@srcdir@"]+tcl_includes+tk_includes
libs_tk=["tk"+version,"tcl"+version]

setup(name="notifqt", version="1.0",
    ext_modules=[
             Extension("notifqt", ["@srcdir@/notifqtmodule.cpp", "moc_notify.cpp",
                                  ],
                        include_dirs=include_dirs,
                        library_dirs=lib_dirs,
                        libraries=libs_tk,
                        extra_compile_args= SIP_INCLUDES + QT_INCLUDES,
                        extra_objects=[],
                        extra_link_args=QT_LIBS + PYQT_LIBS + SIP_LIBS,
                      )
                ])