#!/usr/bin/env python
#  -*- coding: utf-8 -*-
# Copyright (C) 2012-2015  CEA/DEN, EDF R&D, OPEN CASCADE
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
#
# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#

#################################################################################
#
# File:   collect_geom_methods.py
# Author: Roman NIKOLAEV, Open CASCADE S.A.S (roman.nikolaev@opencascade.com)
#
#################################################################################
#
# Extraction of the methods dynamically added by the Geometry 
# module plug-in(s) to the geomBuilder class.
# 
# This script is intended for internal usage - only
# for generatation of the extra developer documentation for
# the Geometry module plug-in(s).
# 
# Usage:
#       collect_geom_methods.py <plugin_name>
# where
#   <plugin_name> is a name of the plug-in module
#
# Notes:
# - the script is supposed to be run in correct environment
# i.e. PYTHONPATH, GEOM_PluginsList and other important
# variables are set properly; otherwise the script will fail.
#
################################################################################

import sys
import inspect

def generate(plugin_name, output):
    plugin_module_name  = plugin_name + "Builder"
    plugin_module       = "salome.%s.%s" % (plugin_name, plugin_module_name)
    import_str          = "from salome.%s import %s" % (plugin_name, plugin_module_name)
    exec( import_str )
    exec( "import %s" % plugin_module )
    exec( "mod = %s" % plugin_module )
    functions = []
    for attr in dir( mod ):
        if attr.startswith( '_' ): continue # skip an internal methods 
        item = getattr( mod, attr )
        if type( item ).__name__ == 'function':
            if item not in functions: 
                functions.append( item )
                pass
            pass
        pass
    if functions:
        for function in functions:
            comments = inspect.getcomments(function)
            if comments:
                comments = comments.strip().split("\n")
                comments = "\t" + "\n\t".join(comments)
                output.append(comments)
                pass                
            sources = inspect.getsource(function)
            if sources is not None:
                sources_list = sources.split("\n")
                sources_new_list = []
                found = False
                for item in sources_list:
                    if '"""' in item:
                        if found == True:
                            found = False                                
                            continue
                        else:
                            found = True
                            continue
                            pass
                        pass                
                    if found == False :
                        sources_new_list.append(item)
                        pass
                    pass
                sources = "\n".join(sources_new_list)
                sources = "\t" + sources.replace("\n", "\n\t")
                output.append(sources)
                pass
            pass
        pass
    pass

if __name__ == "__main__":
    import optparse
    parser = optparse.OptionParser(usage="%prog [options] plugin")
    h  = "Output file (geomBuilder.py by default)"
    parser.add_option("-o", "--output", dest="output",
                      action="store", default=None, metavar="file",
                      help=h)
    h  = "If this option is True, dummy help for geomBuiler class is added. "
    h += "This option should be False (default) when building documentation for Geometry module "
    h += "and True when building documentation for Geometry module plug-ins."
    parser.add_option("-d", "--dummy-geom-help", dest="dummygeomhelp",
                      action="store_true", default=False,
                      help=h)
    (options, args) = parser.parse_args()
    if len( args ) < 1: sys.exit("Plugin name is not specified")

    f = open(options.output, "w")
    
    output = []
    if options.dummygeomhelp:
        output.append( "## @package geomBuilder" )
        output.append( "#  Documentation of the methods dynamically added by the " + plugin_name + " Geometry plug-in to the geomBuilder class." )
        # Add dummy Geometry help
        # This is supposed to be done when generating documentation for Geometry module plug-ins
        output.append( "#  @note The documentation below does not provide complete description of class @b %geomBuilder" )
        output.append( "#  from @b geomBuilder package. This documentation provides only information about" )
        output.append( "#  the methods dynamically added to the %geomBuilder class by the " + plugin_name + " plugin" )
        output.append( "#  For more details on the %geomBuilder class, please refer to the SALOME %Geometry module" )
        output.append( "#  documentation." )
        pass
    else:
        # Extend documentation for geomBuilder class with information about dynamically added methods.
        # This is supposed to be done only when building documentation for Geometry module
        output.append( "## @package geomBuilder" )
        output.append( "#  @note Some methods are dynamically added to the @b %geomBuilder class in runtime by the" )
        output.append( "#  plug-in modules. If you fail to find help on some methods in the documentation of Geometry module, " )
        output.append( "#  try to look into the documentation for the Geometry module plug-ins." )
        pass
    output.append("class geomBuilder():")
    
    for arg in args:
       generate( arg, output )
    pass

    for line in output: f.write( line + "\n" )
    f.close()    
