"""views for the accounts application"""

import datetime
import logging

from django.shortcuts import render_to_response
from django.template import RequestContext
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.conf import settings

from accounts.models import PendingUser
from accounts.forms import RegisterForm


#######################################################################

def register(request):
    if request.user.is_authenticated():
        return HttpResponseRedirect(settings.LOGIN_REDIRECT_URL)

    if request.method == 'POST':
        form = RegisterForm(request.POST, ip=request.META.get('REMOTE_ADDR', '?'))
        if form.is_valid():
            form.save()
            return HttpResponseRedirect(reverse('accounts.views.register_thanks'))
    else:
        form = RegisterForm()

    return render_to_response('accounts/register.html', {
                'form': form,
            },
            context_instance = RequestContext(request))

#######################################################################

def register_thanks(request):
    if request.user.is_authenticated():
        return HttpResponseRedirect(settings.LOGIN_REDIRECT_URL)

    return render_to_response('accounts/register_thanks.html',
            context_instance = RequestContext(request))

#######################################################################

def register_confirm(request, username, key):
    if request.user.is_authenticated():
        return HttpResponseRedirect(settings.LOGIN_REDIRECT_URL)

    # purge expired users

    PendingUser.objects.purge_expired()

    ip = request.META.get('REMOTE_ADDR', '?')
    try:
        pending_user = PendingUser.objects.get(username = username)
    except PendingUser.DoesNotExist:
        logging.error('Accounts register_confirm [%s]: user does not exist: %s', ip, username)
        return render_to_response('accounts/register_failure.html', {
            'username': username,
            },
            context_instance = RequestContext(request))

    if pending_user.key != key:
        logging.error('Accounts register_confirm [%s]: key error: %s', ip, username)
        return render_to_response('accounts/register_failure.html', {
            'username': username,
            },
            context_instance = RequestContext(request))

    new_user = User()

    new_user.username = pending_user.username
    new_user.first_name = ''
    new_user.last_name = ''
    new_user.email = pending_user.email
    new_user.password = pending_user.password     # already been hashed
    new_user.is_staff = False
    new_user.is_active = True
    new_user.is_superuser = False
    new_user.last_login = datetime.datetime.now()
    new_user.date_joined = new_user.last_login

    new_user.save()
    pending_user.delete()

    logging.info('Accounts register_confirm [%s]: success: %s', ip, username)
    return render_to_response('accounts/register_success.html', {
        'username': username,
        },
        context_instance = RequestContext(request))