#!/usr/bin/python2.5
"""
Copyright (C) 2008 Norman Messtorff <normes@normes.org>

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
"""

import ConfigParser
import string
import os
from socket import gethostname
from Global import Global


class Configuration(Global):
	"""Now we have a Configuration Class."""
	config = { }
	def __init__(self, type):
		"""If no configuration available -> generate default"""
		configpath="/etc/debman/"
		configsuffix = ".conf"
		
		if type == "server":
			self.configfile = configpath + type + configsuffix
			if not os.path.exists(self.configfile):
				self.__gen_server_default()
			
		elif type == "node":
			self.configfile = configpath + type + configsuffix
			if not os.path.exists(self.configfile):
				self.__gen_node_default()
		else:
			debug(1, " -!- Unknown configuration type! -!- ")
		
		self.read_config()
		self.debug(4, "Class Configuration initialized, configfile: " + self.configfile)
	
	
	def __gen_server_default(self):
		self.debug(3, "Generating default configuration file")
		config = ConfigParser.ConfigParser()
		config.add_section("server")
		config.set("server", "listen_ip", "localhost")
		config.set("server", "listen_port", 8080)
		
		config.add_section("database")
		config.set("database", "type", "sqlite")
		config.set("database", "sqlite_filename", "/etc/debman/server.db")
		config.set("database", "session_timeout", 5)
		
		config.add_section("compare")
		config.set("compare", "packages_url", "http://ftp.de.debian.org/debian/")
		config.set("compare", "release", "testing")
		config.set("compare", "component", "main")
		config.set("compare", "arch", "i386")
		
		
		fp = open(self.configfile, 'w')
		config.write(fp)
		fp.close()
		del config
		del fp
	
	
	def __gen_node_default(self):
		self.debug(3, "Generating default configuration file")
		config = ConfigParser.ConfigParser()
		config.add_section("server")
		config.set("server", "url", "http://localhost:8080")
		
		config.add_section("local")
		config.set("local", "nodeid", "0")
		config.set("local", "hostname", gethostname())
		config.set("local", "password", "0")
		
		fp = open(self.configfile, 'w')
		config.write(fp)
		fp.close()
		del config
		del fp
	
	
	def read_config(self):
		config = ConfigParser.ConfigParser()
		config.read(self.configfile)
		for section in config.sections():
			self.config[section] = { }
			for option in config.options(section):
				self.config[section][option] = config.get(section, option)
		self.debug(3, "Configuration loaded")
	
	
	def cfg_write_item(self, section, option, value):
		config = ConfigParser.ConfigParser()
		config.read(self.configfile)
		config.set(section, option, value)
		self.config[section][option] = value
		
		fp = open(self.configfile, 'w')
		config.write(fp)
		fp.close()
		del config
		del fp