#!/usr/bin/env python

from xml.dom.ext import *
from xml.dom.ext.reader.Sax import *
import os
import sys
from account import Account

class Config:
  def __init__(self):
    # create an empty list
    self.account_list=None
    # initialise xmlTree
    self.xmlTree=None

  def loadFromFile(self,configFile):
    self.xmlTree=FromXmlFile(configFile)
    return 0
  
  def getAccounts(self):
    if self.xmlTree:
      xmlAccountList = self.xmlTree.getElementsByTagName("account")
      accountList=[]
      for xmlAccount in xmlAccountList:
	account=Account()
	account.setHost(xmlAccount.getAttribute("host"))
	account.setLogin(xmlAccount.getAttribute("login"))
	account.setPassword(xmlAccount.getAttribute("password"))
        xmlTransportList=xmlAccount.getElementsByTagName("transport")
	for xmlTransport in xmlTransportList:
	  isdefault=xmlTransport.getAttribute("default")
	  if isdefault=="true":
	    account.setTransport(\
	      xmlTransport.getAttribute("host"),\
	      xmlTransport.getAttribute("protocol"))
	  account.setProtocol(\
	    xmlTransport.getAttribute("protocol"),\
	    xmlTransport.getAttribute("host"))
	  #TODO:add something to override servers' defaults
	accountList.append(account)
      return accountList
    else:
      return None