#!/usr/bin/python
# -*- coding: utf-8 -*-
##############################################################################
#
# Copyright (c) 2012-2014 Vifib SARL and Contributors.
# All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly advised to contract a Free Software
# Service Company
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from slapos.package.base_promise import BasePromise
from slapos.package.conf import get_template, create
import os
import pkg_resources


class Promise(BasePromise):

  configuration_file_path = '/etc/cron.d/slappkg-update' 

  def _getCronTemplate(self): 
    configuration_content = get_template("update.cron.in")
    return configuration_content % {
                "configuration_path": self.config.slapos_configuration,
                # XXX Unhardcore me please.
                "slapos_location": "/opt/slapos"
           } 

  def checkConsistency(self, fixit=0, **kw):
    is_ok = False

    if os.path.exists(self.configuration_file_path):
       expected_content = self._getCronTemplate()
       with open(self.configuration_file_path, 'r') as actual_conf:
         is_ok = expected_content == actual_conf.read()

    if not is_ok and fixit:
      return self.fixConsistency(**kw)

    return is_ok

  def fixConsistency(self, **kw):
    self.log("Update cron : %s" % self.configuration_file_path)
    if os.path.exists(self.configuration_file_path):
      shutil.rmtree(self.configuration_file_path)

    create(path=self.configuration_file_path,
           text=self._getCronTemplate()) 

    return self.checkConsistency(fixit=0, **kw)

