# Copyright (C) 2007 Platform Computing Inc
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
#

import os
import glob
import string
from kusu.ngedit.ngedit import NGPluginLibBase

MAXIBIFCNT=8

numInterfaceKey = "num_interfaces"

class NGPluginLib(NGPluginLibBase):
    
    def __init__(self, database, kusuApp, **kwargs):
        NGPluginLibBase.__init__(self, database, kusuApp, **kwargs)

        # Plugin data
        self.__numInterfaces = None
        
        if kwargs.has_key(numInterfaceKey):
            try:
                self.__numInterfaces = int(kwargs[numInterfaceKey])
            except ValueError:
                self.__numInterfaces = None

    def validate(self):
        msgPrefix = "Plugin error ('%s'): " % self.compName
        errMsg = msgPrefix + "Number of interfaces must be >=0 and <=%s" % MAXIBIFCNT
        
        cnt = self.__numInterfaces
        if not isinstance(cnt,int):
            return False, errMsg
        else:
            if cnt<0 or cnt>MAXIBIFCNT:
                return False, errMsg

        return True, "Success"


    def add(self):
        # Nothing to do
        pass

    def remove(self):
        assert(self.ngid)
        query = '''DELETE FROM ng_has_net WHERE ngid = %s and netid in ( select netid 
                   from networks where device like 'ib%%')''' %self.ngid
        try:
            self.database.execute(query)
        except:
            #if delete fails - just forge on
            pass