root / pykota / trunk / bin / pkbcodes @ 3260

#! /usr/bin/env python
# -*- coding: UTF-8 -*-
#
# PyKota : Print Quotas for CUPS
#
# (c) 2003, 2004, 2005, 2006, 2007 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 3 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, see <http://www.gnu.org/licenses/>.
#
# $Id$
#
#

import os
import sys
import pwd

from pykota.tool import Percent, PyKotaTool, PyKotaCommandLineError, crashed, N_
from pykota.storage import StorageBillingCode

__doc__ = N_("""pkbcodes v%(__version__)s (c) %(__years__)s %(__author__)s

A billing codes Manager for PyKota.

command line usage :

  pkbcodes [options] code1 code2 code3 ... codeN

options :

  -v | --version       Prints pkbcodes version number then exits.
  -h | --help          Prints this message then exits.
  
  -a | --add           Adds billing codes if they don't exist in PyKota's
                       database. If they exist, they are modified
                       unless -s|--skipexisting is also used.

  -d | --delete        Deletes billing codes from PyKota's database.
                       NB : the history entries with this billing code
                       are not deleted, voluntarily.

  -D | --description d Adds a textual description to billing codes.

  -l | --list          List informations about the billing codes.

  -r | --reset         Resets the billing codes' balance and page counters
                       to 0.

  -s | --skipexisting  In combination with the --add option above, tells
                       pkbcodes to not modify existing billing codes.

  code1 through codeN can contain wildcards if the --add option
  is not set.

examples :                              

  $ pkbcodes --add -D "My project" myproj

  Will create the myproj billing code with "My project"
  as the description.

  $ pkbcodes --delete "*"

  This will completely delete all the billing codes, but without
  removing any matching job from the history. USE WITH CARE ANYWAY !
  
  $ pkbcodes --list "my*"
  
  This will list all billing codes which name begins with 'my'.
""")
        
class PKBcodes(PyKotaTool) :        
    """A class for a billing codes manager."""
    def modifyBillingCode(self, billingcode, reset, description) :
        """Modifies a billing code."""
        if reset :
            billingcode.reset()    
        if description is not None : # NB : "" is allowed !
            billingcode.setDescription(description)
        
    def main(self, names, options) :
        """Manage billing codes."""
        if (not self.config.isAdmin) and (not options["list"]) :
            raise PyKotaCommandLineError, "%s : %s" % (pwd.getpwuid(os.geteuid())[0], _("You're not allowed to use this command."))
            
        if not options["list"] :    
            percent = Percent(self)
            
        if not options["add"] :
            if not options["list"] :
                percent.display("%s..." % _("Extracting datas"))
            if not names :      # NB : can't happen for --delete because it's catched earlier
                names = ["*"]
            billingcodes = self.storage.getMatchingBillingCodes(",".join(names))
            if not billingcodes :
                if not options["list"] :
                    percent.display("\n")
                raise PyKotaCommandLineError, _("There's no billingcode matching %s") % " ".join(names)
            if not options["list"] :    
                percent.setSize(len(billingcodes))
                        
        if options["list"] :
            for billingcode in billingcodes :
                print "%s [%s] %s %s %s %.2f %s" % \
                      (billingcode.BillingCode, billingcode.Description, \
                       billingcode.PageCounter, \
                       _("pages"), \
                       _("and"), \
                       billingcode.Balance, \
                       _("credits"))
        elif options["delete"] :    
            percent.display("\n%s..." % _("Deletion"))
            self.storage.deleteManyBillingCodes(billingcodes)
            percent.display("\n")
        else :
            reset = options["reset"]
            description = options["description"]
            if description :
                description = options["description"].strip()
            skipexisting = options["skipexisting"]        
            
            self.storage.beginTransaction()
            try :
                if options["add"] :    
                    percent.display("%s...\n" % _("Creation"))
                    percent.setSize(len(names))
                    for bname in names :
                        billingcode = StorageBillingCode(self.storage, bname)
                        self.modifyBillingCode(billingcode, reset, description)
                        oldbillingcode = self.storage.addBillingCode(billingcode)
                        if oldbillingcode is not None :
                            if skipexisting :
                                self.logdebug(_("Billing code [%s] already exists, skipping.") % bname)
                            else :    
                                self.logdebug(_("Billing code [%s] already exists, will be modified.") % bname)
                                self.modifyBillingCode(oldbillingcode, reset, description)
                                oldbillingcode.save()
                        percent.oneMore()
                else :        
                    percent.display("\n%s...\n" % _("Modification"))
                    for billingcode in billingcodes :
                        self.modifyBillingCode(billingcode, reset, description)
                        billingcode.save()    
                        percent.oneMore()
            except :                    
                self.storage.rollbackTransaction()
                raise
            else :    
                self.storage.commitTransaction()
                        
        if not options["list"] :
            percent.done()
                     
if __name__ == "__main__" : 
    retcode = 0
    try :
        short_options = "hvaD:dlrs"
        long_options = ["help", "version", "add", "description=", "delete", "list", "reset", "skipexisting"]
        
        # Initializes the command line tool
        manager = PKBcodes(doc=__doc__)
        manager.deferredInit()
        
        # parse and checks the command line
        (options, args) = manager.parseCommandline(sys.argv[1:], short_options, long_options)
        
        # sets long options
        options["help"] = options["h"] or options["help"]
        options["version"] = options["v"] or options["version"]
        options["add"] = options["a"] or options["add"]
        options["description"] = options["D"] or options["description"]
        options["delete"] = options["d"] or options["delete"] 
        options["list"] = options["l"] or options["list"]
        options["reset"] = options["r"] or options["reset"]
        options["skipexisting"] = options["s"] or options["skipexisting"]
        
        if options["help"] :
            manager.display_usage_and_quit()
        elif options["version"] :
            manager.display_version_and_quit()
        elif (options["delete"] and (options["add"] or options["reset"] or options["description"])) \
           or (options["skipexisting"] and not options["add"]) \
           or (options["list"] and (options["add"] or options["delete"] or options["reset"] or options["description"])) :
            raise PyKotaCommandLineError, _("incompatible options, see help.")
        elif (not args) and (options["add"] or options["delete"]) :    
            raise PyKotaCommandLineError, _("You have to pass billing codes on the command line")
        else :
            retcode = manager.main(args, options)
    except KeyboardInterrupt :        
        sys.stderr.write("\nInterrupted with Ctrl+C !\n")
        retcode = -3
    except PyKotaCommandLineError, msg :    
        sys.stderr.write("%s : %s\n" % (sys.argv[0], msg))
        retcode = -2
    except SystemExit :        
        pass
    except :
        try :
            manager.crashed("pkbcodes failed")
        except :    
            crashed("pkbcodes failed")
        retcode = -1

    try :
        manager.storage.close()
    except (TypeError, NameError, AttributeError) :    
        pass
        
    sys.exit(retcode)