#!/usr/bin/python
# vim: set fileencoding=utf-8 : sts=4 : et : sw=4
#    Callcentric "click 2 dial" client
#
#    Copyright © 2013 Jeff Epler <jepler@unpythonic.net>
#    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import cookielib
import mechanize
import os
import sys
import traceback
import bs4 as bs

callcentric_cookiefile = os.path.expanduser("~/.callcentric.cookies")

moderator = password = login = None

try:
    execfile(os.path.expanduser("~/.callcentricrc"))
except:
    traceback.print_exc()

if not login: login = raw_input("Callcentric login: ")
if not password: password = getpass.getpass()

if len(sys.argv) > 1:
    dial = sys.argv[1]
else:
    dial = raw_input("Dial number: ")

if len(sys.argv) > 2:
    src = sys.argv[2]
    if len(src) == 3: moderator = moderator[:11] + src
    else: moderator = src

if moderator is None:
    moderator = raw_input("Moderator: ")
cookies = cookielib.LWPCookieJar(callcentric_cookiefile)
if os.path.exists(callcentric_cookiefile): cookies.load(ignore_discard=True)
mech = mechanize.Browser()
mech.set_cookiejar(cookies)

LOGIN_URL = 'https://www.callcentric.com/login/'
C2D_URL = "https://my.callcentric.com/click2dial.php"
if 0:
    mech.set_debug_http(True)
    mech.set_debug_redirects(True)
    mech.set_debug_responses(True)

def is_login_form(f):
    return f.action == LOGIN_URL
def is_c2d_form(f):
    return f.action == C2D_URL

def do_login(do_open = True):
    if do_open: mech.open(LOGIN_URL)
    mech.select_form(predicate=is_login_form)
    mech['l_login'] = login
    mech['l_passwd'] = password
    mech.submit()

    cookies.save(ignore_discard=True)

mech.open(C2D_URL)
if 'login' in mech.geturl():
    do_login(False)
    if mech.geturl() != C2D_URL:
        mech.open(C2D_URL)

print "Moderator", repr(moderator)
print "Dialing", repr(dial)

mech.select_form(predicate=is_c2d_form)
mech['moderator'] = moderator
mech['dial_number1'] = dial
mech.submit()

b = bs.BeautifulSoup(mech.response())
bad = b.find('input', {'class': 'error'})
if bad:
    name = bad.get('name')
    if name == 'dial_number1': name = 'dial'

    raise SystemExit, "Callcentric reported bad input for %s (possibly an invalid number)" % name

if b.find('td', {'class': 'error_msg'}):
    raise SystemExit, "Callcentric reported an error (possibly an invalid number)"

t = b.find('table', bgcolor="#444444")

# Stupidest html renderer ever
def h2d(t):
    for i in t:
        if isinstance(i, basestring): yield i.strip()
        elif getattr(i, 'name', None) == 'br': yield '\n'
        else:
            for j in h2d(i):
                yield j


print "".join(h2d(t))