#!/usr/bin/python
import time
import random
import datetime
import re
import ConfigParser
import telepot
from telepot.loop import MessageLoop


def writeconfig():
    global configParser
    with open('telegram-notify.conf', 'wb') as configfile:
        configParser.write(configfile)

def handle(msg):
    global configParser
    # {u'date': 1495655440, u'text': u'asd',
    #   u'from': {u'username': u'pasperti', u'first_name': u'Paolo', u'last_name': u'Asperti', u'id': 173226581, u'language_code': u'it'},
    # u'message_id': 64,
    # u'chat': {u'username': u'pasperti', u'first_name': u'Paolo', u'last_name': u'Asperti', u'type': u'private', u'id': 173226581}}

    pair_pin = configParser.get('general', 'pair_pin')
    chat_ids = configParser.get('general', 'chat_ids')

    print "pair pin"
    print pair_pin

    print "chat ids"
    print chat_ids

    chat_id = msg['chat']['id']
    command = msg['text']
    param = ''
    # sta roba non funziona
    paired_user = [x for x in chat_ids if x['id'] == chat_ids]
    is_paired = len(paired_user) > 0

    if re.match('/',msg['text']):
        # e' un comando
        command = re.sub(r"\s.*",'',msg['text'])
        param = re.sub(r"^([^\s]+)\s","",msg['text'])

    print 'Got command: %s (%s)' % (command, param)

    if command == '/pair':
        if is_paired:
            bot.sendMessage(chat_id, 'You\'re already paired.')
        elif param == pair_pin:
            chat_ids.append(msg['chat'])
            configParser.set('general', 'chat_ids', chat_ids)
            writeconfig()
            bot.sendMessage(chat_id, 'Pairing ok.')
        else:
            bot.sendMessage(chat_id, 'Pairing failed: wrong pin.')
    elif command == '/newpin':
        if not is_paired:
            bot.sendMessage(chat_id, 'You\'re not allowed to do that. You have to pair first.')
        elif param != '':
            pair_pin = param
            configParser.set('general', 'pair_pin', pair_pin)
            writeconfig()
            bot.sendMessage(chat_id, 'The new pin is: %s' % pair_pin)
        else:
            bot.sendMessage(chat_id, 'Please specify the new pin.')
    elif command == '/unpair':
        if not is_paired:
            bot.sendMessage(chat_id, 'You\'re not allowed to do that. You have to pair first.')
        else:
        # rimuovere dalla lista
            bot.sendMessage(chat_id, 'Bye.')
    elif command == '/users':
        users = [x['username'] + ' (' + x['first_name'] + ' ' + x['last_name'] + ')\n' for x in chat_ids]
        print users
        bot.sendMessage(chat_id, 'Paired users:\n' + "".join([str(i) for i in users]) )


configParser = ConfigParser.RawConfigParser()
configParser.read(r'telegram-notify.conf')

chat_ids = configParser.get('general', 'chat_ids')
print "type: "
print type(chat_ids)
print chat_ids
if type(chat_ids) is str:
    chat_ids=[]
    configParser.set('general', 'chat_ids', chat_ids)
    writeconfig()

token = configParser.get('general', 'token')
bot = telepot.Bot(token)

MessageLoop(bot, handle).run_as_thread()
print 'I am listening ...'

while 1:
    time.sleep(10)