# -*- coding: iso-8859-1 -*-
# Copyright (C) 2011-2012  EDF R&D
#
# 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.
#
# 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
#
# Author(s): Guillaume Boulant (23/03/2011)
#

import sys, os
import ConfigParser
from MESHJOB import ConfigParameter
from salome.kernel.uiexception import AdminException, UiException

from salome_pluginsmanager import PLUGIN_PATH_PATTERN
CONFIG_RELPATH  = os.path.join(PLUGIN_PATH_PATTERN,'smesh')
CONFIG_FILENAME = "padder.cfg"
TYPE_LOCAL   = 'local'
TYPE_REMOTE  = 'remote'
TYPES=[TYPE_LOCAL, TYPE_REMOTE]

class ConfigReader:
    def __init__(self):
        # The first step is to look for the config file. This file
        # is supposed to be located in the same directory than the
        # padder plugin. Then, we have to scan the directories
        # specified in the SALOME plugins path.
        self.__configFilename = None
        try:
            smeshpath=os.environ["SMESH_ROOT_DIR"]
        except KeyError, ex:
            raise AdminException("You should define the variable SMESH_ROOT_DIR")

        pluginspath = os.path.join(smeshpath,CONFIG_RELPATH)
        filename    = os.path.join(pluginspath,CONFIG_FILENAME)
        if os.path.exists(filename):
            self.__configFilename = filename
        else:
            msg = "The configuration file %s can't be found in the SMESH plugins path %s"
            raise AdminException(msg%(CONFIG_FILENAME,pluginspath))

        print "The configuration file is : %s"%self.__configFilename
        self.__configparser = ConfigParser.RawConfigParser()
        try:
            self.__configparser.read(self.__configFilename)
        except ConfigParser.ParsingError, ex:
            raise AdminException(ex.message)

    def getLocalConfig(self):
        return self.__getConfig(TYPE_LOCAL)
    
    def getRemoteConfig(self):
        return self.__getConfig(TYPE_REMOTE)

    def getDefaultConfig(self):
        defaultType = self.__getDefaultType()
        return self.__getConfig(defaultType)
        
    def __getConfig(self, type=TYPE_LOCAL):
        configName = self.__configparser.get('resources', type)
        resname = self.__configparser.get(configName, 'resname')
        binpath = self.__configparser.get(configName, 'binpath')
        envpath = self.__configparser.get(configName, 'envpath')
        config = ConfigParameter(resname, binpath, envpath)
        config.resname = resname
        return config

    def __getDefaultType(self):
        '''This returns the default type read in the config file ([resources], default)'''
        defaultType = self.__configparser.get('preferences', 'defaultres')
        if defaultType not in TYPES:
            return TYPE_LOCAL
        return defaultType


def printConfig(config):
    print "PADDER CONFIGURATION:"
    print "\tconfig.resname = %s"%config.resname
    print "\tconfig.binpath = %s"%config.binpath
    print "\tconfig.envpath = %s"%config.envpath
    

#
# =========================================================================
# Test runner
# =========================================================================
#
def TEST_getDefaultConfig():
    try:
        configReader = ConfigReader()
        defaultConfig = configReader.getDefaultConfig()
        print defaultConfig.resname
        print defaultConfig.binpath
        print defaultConfig.envpath
    except Exception, ex:
        sys.stderr.write('ERROR: %s\n' % str(ex))
        return False
    
    return True

def TEST_getDefaultConfig_withError():
    global CONFIG_FILENAME
    CONFIG_FILENAME = "toto.cfg"
    try:
        configReader = ConfigReader()
        defaultConfig = configReader.getDefaultConfig()
    except UiException, err:
        print 'ERROR: %s' % str(err)
        return True
    
    return False


from salome.kernel import unittester
moduleName = "configreader"

def testsuite():
    unittester.run(moduleName, "TEST_getDefaultConfig")
    unittester.run(moduleName, "TEST_getDefaultConfig_withError")
    
if __name__ == "__main__":
    #import os, sys
    #pluginspath=os.environ["SALOME_PLUGINS_PATH"]
    #for path in pluginspath.split(":"):
    #    sys.path.insert(0,path)
    
    testsuite()