#!/usr/bin/env python
'''
 CLI interface which configures and makes new nodes with the most commonly
 used commands.
 
 Rick van der Zwet <info@rickvanderzwet.nl>
'''

import getrange
import gformat
import os
import readline
import sys


print "WARNING I AM NOT PRODUCTION CODE YET!" + __doc__

DEBUG =  "-g" in sys.argv

def rlprompt(prompt, prefill=''):
   ''' Get line with some boring default '''
   if DEBUG:
     return prefill
   return raw_input("%s%s: " % (prompt, ' [' + str(prefill) + ']' if prefill else '')) or prefill

def rlinput(prompt, prefill=''):
   ''' Get line with some editable boring default '''
   if DEBUG:
     return prefill
   readline.set_startup_hook(lambda: readline.insert_text(prefill))
   try:
      return raw_input(prompt + ": ")
   finally:
      readline.set_startup_hook()

def rlinput_float(prompt, prefill=0):
  while True:
    try:
      prefill = rlinput(prompt, prefill)
      return float(prefill)
    except ValueError:
      print "Invalid Number!"
      pass

def rlinput_choices(prompt, choices, prefill=''):
  if DEBUG:
    return prefill
  while True:
    filtered_choices = [x for x in choices if (str(prefill).lower() in str(x).lower())]
    if len(filtered_choices) == 1:
      return filtered_choices[0]
    elif len(filtered_choices) == 0:
      filtered_choices = choices
    prefill = rlinput(prompt + ' ' + str(filtered_choices), prefill)
    if prefill in prompt:
      return prefill
     
      
    



def newNode():
  datadump = {
    'nodename' : "New",
    'location' : "1234 AB, Leiden",
    'nodetype' : "Hybrid",
    'latitude' : "52.",
    'longitude' : "4.",
  }
  datadump['nodename'] = rlprompt("Nodename", datadump['nodename'])
  datadump['location'] = rlprompt("Location", datadump['location'])
  datadump['nodetype'] = rlprompt("Nodetype", datadump['nodetype'])
  datadump['latitude'] =  rlinput_float("Latitude", datadump['latitude'])
  datadump['longitude'] = rlinput_float("Longitude", datadump['longitude'])
  datadump['autogen_item'] =  datadump['nodetype'] + datadump['nodename']
 
  print "Generating the Master IP range..."
  master_network = getrange.get_ranges(False, 24, 1)[0]
  master_ip = getrange.showaddr(master_network + 1)
  datadump['master_ip'] = master_ip

  if rlprompt("Add ath0 Accesspoint", "yes") == "yes":
    ifname = rlinput("Interface name", "ath0")
    datadump['iface_' + ifname] = {
      'ip' : rlinput(" - IP", master_ip + "/26"),
      'dhcp' : rlinput(" - DHCP range", "10-60"),
      'ssid' : rlinput(" - SSID", "ap-WirelessLeiden-" + datadump['nodename']),
      'mode' : 'ap',
      'type' : '11b',
      'comment' : rlinput(" - Comment", "Omni voor de Buurt"),
      'sdesc': rlinput(" - Short Description", "2buurt"),
      'channel' : rlprompt(" - Channel", "10"),
      'status' : 'up', 
    }

  if_nr = 0
  while rlprompt("Add Interlink", "yes") == "yes":
    ifname = rlinput("Interface name", "vr%i" % if_nr)
    if_nr = if_nr + 1
    remote = rlinput_choices("Create interlink", gformat.get_hostlist(),'HybridCeTIM2')
    remote_datadump = gformat.get_yaml(remote)
    print "Available remote interfaces:"
    for ifkey in remote_datadump['autogen_iface_keys']:
      ifdump = remote_datadump[ifkey]
      print " - %4s" % ifdump['autogen_ifbase'], '- %30s' % ifdump['comment'],
      if ifdump.has_key('ssid'): 
        print '-', ifdump['ssid']
      else:
        print ''
    iface = rlinput_choices("Interface Used", remote_datadump['autogen_iface_keys'], "vr1")
    netmask = 28
    print "Generating the Interlink IP range..."
    link_network = getrange.get_ranges(True, netmask, 1)[0]

    datadump['iface_%s' % ifname] = {
      'comment': rlinput(" - Comment", "Link naar " + remote),
      'sdesc': rlinput(" - Short Description", "2" + remote),
      'ssid': rlinput(" - SSID", 'il-X.wleiden.net'),
      'dhcp': 'False',
      'mode': "ap-wds",
      'ip': rlinput(" - IP", getrange.showaddr(link_network + 1) + "/" + str(netmask)),
      'type': "eth",
      'ns_ip': rlinput(" - NS IP", getrange.showaddr(link_network + 2) + "/" + str(netmask)),
      'ns_mac': rlinput(" - NS MAC", "00:27:22:"),
      'bridge_type': rlinput(' - Bridge Type', 'NanoStation5M'),
      'status': 'up',
    }
    break

  print datadump
  #os.mkdir(datadump['autogen_item'])
  #gformat.store_yaml(datadump)
  


if __name__ == '__main__':
  def printMenu(): 
    print '''Node File Editor by Rick van der Zwet
  
  1) New Node
  9) Quit
  '''

  printMenu()
  choice = 1
  while choice != 9:
    choice = int(rlprompt("Choice", choice))
    if choice == 9:
      break
    elif choice == 1:
      newNode()
      printMenu()
      sys.exit(1)
    else:
      print "Invalid choice!"