#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#       updater.py
#
#       Copyright 2009 Moises Henriquez <M0E.lnx [at] gmail [dot] 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, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#       MA 02110-1301, USA.
"""
Vectorlinux update utilities
"""
import os
import subprocess
import time
import datetime
import ConfigParser

__version__ = '0.1.2'
__author__ = 'M0E-lnx'
__credits__ = 'rbistolfi, lopz, Uelsk8s'

if os.path.exists('/etc/vlupdater.conf'):
    conf = ConfigParser.ConfigParser()
    conf.read('/etc/vlupdater.conf')
    tmpdir = conf.get('general', 'cachedir')
    pkg_ext = conf.get('general', 'compression')
else:
    tmpdir = '/tmp/vlupdater/'
    pkg_ext = 'tgz'

today = datetime.date.today().isoformat()


class Package:
    '''
    Returns a new package object

    Requires one argument. A path to a package file in /var/log/packages
    '''
    def __init__(self, path):
        self.pkgname = os.path.split(path)[-1]
        sp = self.pkgname.rsplit('-', 3)
        self.appname = sp[0]
        self.version = sp[1]
        f = open(path, 'r')
        self.data = f.readlines()
        f.close()

    def _pull_description(self):
        '''
        Re-generates the slack-desc file by parsing self.data
        '''
        res = []
        n = self.data.index('./\n')
        i = 0
        while i <= n:
            if self.data[i][:len(self.appname)] == self.appname:
                res.append(self.data[i].strip())
            i += 1
        return '\n'.join(res) + '\n'
    def _pull_install_script(self):

        '''
        Re-generates the doinst.sh file by parsing the script file
        '''
        scriptsloc = '/var/log/scripts/'
        if os.path.exists(os.path.join(scriptsloc, self.pkgname)) == False:
            return None
        else:
            out = []
            f = open(os.path.join(scriptsloc, self.pkgname), 'r')
            for i in f.readlines():
                out.append(i.strip())
            f.close
            return '\n'.join(out) + '\n'
    def _do_cmd(self, cmd):
        return subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, \
            stderr=subprocess.STDOUT, shell=True)
    def repackage(self):
        '''
        Re-creates the package based on the information provided by self.data
        '''
        n = self.data.index('./\n')
        tmp_pkg = os.path.join(tmpdir, today, 'pkg-%s' %(self.appname))
        for i in range(n, len(self.data)):
            if 'install/' in self.data[i].strip():
                print "I got install"
                pass
            if self.data[i].strip() == None:
                pass
            if self.data[i].strip()[-1] == '/':
                com = 'mkdir -p %s' % (os.path.join(tmp_pkg, self.data[i].strip()))
            else:
                com = 'cp -arp %s %s' % ('/' + self.data[i].strip(), \
                os.path.join(tmp_pkg, self.data[i].strip()))
            print com