#!/usr/bin/env python
#
# $Id: simpleconf.py,v 1.2 2007/09/03 13:34:03 imil Exp $
#
# -*- coding: latin1 -*-

import re
import sys
import os

class SimpleConf:
	'''very basic conf file objectizer'''

	confline = '^\s*(\S+?)([\t\ =:]+)(\S.+)'

	def __init__(self):
		self.ordfile = []
		self.fdict = {}
		self.separator = ''

	def ordict(self):
		for l in self.ordfile:
			self.fdict[l.keys()[0]] = l.values()[0]

	def keys(self):
		return self.fdict.keys()

	def values(self):
		return self.fdict.values()

	def valueupdate(self, key, value):
		if not key in self.fdict.keys():
			return None

		for l in self.ordfile:
			k = l.keys()[0]
			if key == k:
				l[k] = value + '\n'
		# update fake dict, yeah, that sucks
		self.ordict()

	def read(self, path):
		if not os.path.isfile(path):
			print path + ' is not a file'
			return None

		f = open(path, "r")

		for line in f.readlines():
			
			if line[0] in ['#', '\n', '\0']:
				self.ordfile.append({line: ''})
				continue
			m = re.match(self.confline, line)
			if m:
				(key, self.separator, value) = m.groups()
				self.ordfile.append({key: value + '\n'})

		f.close()
		# update fake dict
		self.ordict()

		return self.fdict

	def write(self, filename):
		f = open(filename, "w")
		for l in self.ordfile:
			k = l.keys()[0]
			if l[k] == '':
				f.write(k)
			else:
				f.write(k + self.separator + l[k])
		f.close()


def basic_test(file):
	cf = SimpleConf()
	kv = cf.read(file)
	for k in kv.keys():
		print 'key: ' + k + ', value: ' + kv[k]
	cf.write('/tmp/out.tmp')

if __name__ == "__main__":
	if (len(sys.argv) < 2):
		sys.exit(2)

	basic_test(sys.argv[1])