#! /usr/bin/env python
# -*- coding: ISO-8859-15 -*-

# PyKotIcon - Windows System Tray Icon for PyKota
#
# (c) 2003-2004 Jerome Alet <alet@librelogiciel.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
# $Id$
#
#

import sys
import os
import pwd
import time
import urllib
import urllib2

DUMPYKOTA_URL = "http://cgi.librelogiciel.com/cgi-bin/dumpykota.cgi"
USERNAME = "jerome"

class CGINetworkInterface :
    """A class for all network interactions."""
    def __init__(self, url, username=None, password=None) :
        """Initialize CGI connection datas."""
        self.url = url
        self.username = username
        self.password = password
        
    def retrieveDatas(self, arguments, fieldnames) :
        """Retrieve datas from the CGI script."""
        args = { "report" : 1,
                 "format" : "csv",
               }  
        args.update(arguments)            
        answer = {}
        try :            
            url = "%s?%s" % (self.url, urllib.urlencode(args))
            u = urllib2.urlopen(url)
            lines = u.readlines()
        except IOError, msg :    
            raise IOError, "Unable to retrieve %s : %s" % (url, msg)
        else :    
            u.close()
            try :
                lines = [ line.strip().split(",") for line in lines ]
                fields = [field[1:-1] for field in lines[0]]
                indices = [fields.index(fname) for fname in fieldnames]
                answer = dict([ (fieldname, \
                                  [ line[fields.index(fieldname)][1:-1] for line in lines[1:] ]) \
                                for fieldname in fieldnames ])
            except :    
                raise ValueError, "Invalid datas retrieved from %s" % url
        return answer
        
    def getPrinterNames(self) :
        """Retrieve the printer's names."""
        arguments = { "report" : 1,
                      "format" : "csv",
                      "datatype" : "printers",
                    }  
        return self.retrieveDatas(arguments, ["printername"])["printername"]
        
    def getUserInfo(self, username) :
        """Retrieve the user's information."""
        arguments = { "datatype" : "users",
                      "filter" : "username=%s" % username,
                    }  
        return self.retrieveDatas(arguments, ("limitby", "balance", "lifetimepaid"))
        
    def getUserPQuotas(self, username) :
        """Retrieve the user's print quota information."""
        arguments = { "datatype" : "upquotas",
                      "filter" : "username=%s" % username,
                    }  
        return self.retrieveDatas(arguments, ("printername", "pagecounter", "softlimit", "datelimit"))
    
if __name__ == "__main__" :
    net = CGINetworkInterface(DUMPYKOTA_URL)
    print "List of printers : ", net.getPrinterNames()
    
    print "User : ", net.getUserInfo("jerome")
    
    print "User print quotas : ", net.getUserPQuotas("jerome")