from django.http import (Http404, HttpResponseRedirect, HttpResponseNotFound,
                        HttpResponse)
from django.core.paginator import Paginator, InvalidPage, EmptyPage
from django.core.urlresolvers import reverse
from django.conf import settings
from django.contrib import messages
from django.utils.functional import lazy
from django.shortcuts import render_to_response
from django.core.context_processors import csrf
from django.views.decorators.csrf import csrf_protect
from django.template import Context, RequestContext
from django.contrib.auth.decorators import login_required
from datetime import datetime, date, timedelta
from django_couchdb_utils.auth.models import User
from lepublicateur.app import RegisterForm, UserForm, ResetpwdForm, ChangepwdForm
from lepublicateur.views.utils import sender, template_sender
from lepublicateur.context_processors import *
import sys, os, subprocess, socket, uuid

from django.utils.translation import gettext_lazy as _

def _lookup_template(name):
    return 'lepublicateur/%s.html' % name  

def _device_template(name):
    if name:
        return '%s.html' % name
    else:
        return 'base.html'  

@csrf_protect
def register_email(request):
    """Display the register page.
    """
    device_template = _device_template(get_device())

    d = {}
    d.update(csrf(request))
    if 's' in request.POST:
        csrf_token = request.COOKIES['csrf_token']
        if csrf_token == "":
            # Fall back to X-CSRFToken, to make things easier for AJAX
            request_csrf_token = request.META.get('HTTP_X_CSRFTOKEN', '')  
        else:
            request_csrf_token = csrf_token

        if request_csrf_token != csrf_token:
            return HttpResponseRedirect('start') 

    # Use correct entry type Document class
    entry_type = User
    # Select correct form for entry
    form_class = RegisterForm    

    if request.method == 'POST':
        form = form_class(request.POST)
        if form.is_valid():
            entry = entry_type(**form.cleaned_data)
            uuidd = unicode(uuid.uuid4())
            entry['password'] = entry_type.gen_password(entry['password'])
            entry['uuid'] = uuidd
            entry['is_active'] = False
            # Save the entry to the DB
            entry.save()
            messages.info(request, _('Welcome !'))  
        else:
            messages.error(request, _('Error, no register'))               
        return HttpResponseRedirect('/register-account/%s%s/' % (get_device(), ".html"))        
    else:
        form = RegisterForm()

    context = {
        'form': form,
        'device_template': device_template
    }
    return render_to_response(_lookup_template('register_email'), context,
                              context_instance=RequestContext(request))                              

@csrf_protect
def register_you(request, uuid):
    """Display the register page.
    """
    # Use correct entry type Document class
    entry_type = User
    # Select correct form for entry
    form_class = UserForm    

    if request.method == 'POST':

        try:
            param = {'key': uuid }        
        except:
            raise Http404        

        try:  
            entry = User.get_user_by_uuid(uuid)         
        except IndexError:
            raise Http404

        form = form_class(request.POST)
        if form.is_valid():
            data = entry_type(**form.cleaned_data)
            entry['username'] = data['username']
            entry['first_name'] = data['first_name']
            entry['last_name'] = data['last_name']
            entry['uuid'] = unicode(entry.uuid)       
            password = entry_type.gen_password(data['password'])
            if password:
                entry['password'] = unicode(password)
                entry['is_active'] = True

            # Save the entry to the DB           
            entry.save()
            entry.has_usable_password()
            messages.info(request, _('Welcome !'))  
        else:
            messages.error(request, _('Error, no register'))               
        return HttpResponseRedirect(reverse('log-in'))
    else:
        form = UserForm()

    context = {
        'form': form,
    }
    return render_to_response(_lookup_template('register_you'), context,
                              context_instance=RequestContext(request))

@csrf_protect
def activate_account(request):
    """Display the register page.
    """
    if request.method == 'POST':
        email = request.POST['email']
        entry_type = User
        entry = entry_type.get_user_by_email(email)
        entry['is_active'] = True
        entry.save()

    title = _('Activate your account')
    context = {
        'title': title
    }
    return render_to_response(_lookup_template('email/thanks_register'), context,
                              context_instance=RequestContext(request))                               

@csrf_protect
def register_confirm(request):
    """Active invitation.
    """
    if request.method == 'POST':     

        try:  
            entry_id = request.POST['entry_id']
            entry = User.get_user_by_uuid(entry_id)         
        except IndexError:
            raise Http404

        if entry:
            entry['is_active'] = True
            entry.save()
            messages.info(request, _('Register confirm is correct'))                

        
            template_sender(
                        entry, entry['email'], 
                        _(u'[Mariage] : Your account is activated'), 
                        'lepublicateur/email/activate_register.txt', 
                        'lepublicateur/email/activate_register.html')

            template_sender(
                        entry, settings.DEFAULT_FROM_EMAIL, 
                        _(u'[Mariage] : New register'), 
                        'lepublicateur/email/notifiation_admin_register.txt', 
                        'lepublicateur/email/notifiation_admin_register.html')                    

        else:
            messages.error(request, _('Error, Register confirm not is correct'))   
        # # Get beautiful template 
        # plaintext = get_template('lepublicateur/email/activate_register.txt')
        # htmly     = get_template('lepublicateur/email/activate_register.html')
        # # get current url
        # current_path = get_full_domaine(settings.DOMAINNAME)
        # uuidd = unicode(uuid.uuid4())
        # context = Context({ 'email': entry['email'], 'username': entry['username'], 
        #                     'first_name': entry['first_name'],
        #                     'last_name': entry['last_name'], 'current_path': current_path })                
        # subject = _(u'[Mariage] : Your account is activated')
        # to_email = entry['email']
        # sender(subject, context, settings.DEFAULT_FROM_EMAIL, to_email, plaintext, htmly)
        # #messages.success(request, 'success test')

    return HttpResponseRedirect(reverse('list-users'))


@login_required
@csrf_protect
def register_admin(request):
    """Display the register page.
    """
    d = {}
    d.update(csrf(request))
    if 's' in request.POST:
        csrf_token = request.COOKIES['csrf_token']
        if csrf_token == "":
            # Fall back to X-CSRFToken, to make things easier for AJAX
            request_csrf_token = request.META.get('HTTP_X_CSRFTOKEN', '')  
        else:
            request_csrf_token = csrf_token

        if request_csrf_token != csrf_token:
            return HttpResponseRedirect('start') 

    # Use correct entry type Document class
    entry_type = User
    # Select correct form for entry
    form_class = UserForm    

    if request.method == 'POST':       
        form = form_class(request.POST)
        if form.is_valid():
            entries = entry_type(**form.cleaned_data)
            uuidd = unicode(uuid.uuid4())            
            username = request.POST['username']        
            password = entry_type.gen_password(entries['password'])
            email = request.POST['email']

            if password and uuidd and email:
                entries['username'] = unicode(username)
                entries['email'] = unicode(email)
                entries['uuid'] = unicode(uuidd)
                entries['password'] = unicode(password)
                entries['is_active'] = True

                # Save the entry to the DB          
                entries.save()
                entries.has_usable_password()
                messages.info(request, _('Insert user is correct'))  
            else:
                messages.error(request, _('Error, Insert user is not correct'))                
            return HttpResponseRedirect(reverse('list-users'))
    else:
        # Add email for register
        register = RegisterForm()

    context = {
        'register': register
    }
    return render_to_response(_lookup_template('register_admin'), context,
                              context_instance=RequestContext(request))    

@csrf_protect
def reset_password(request):
    """Display the reset password page.
    """
    d = {}
    d.update(csrf(request))
    if 's' in request.POST:
        csrf_token = request.COOKIES['csrf_token']
        if csrf_token == "":
            # Fall back to X-CSRFToken, to make things easier for AJAX
            request_csrf_token = request.META.get('HTTP_X_CSRFTOKEN', '')  
        else:
            request_csrf_token = csrf_token

        if request_csrf_token != csrf_token:
            return HttpResponseRedirect('start') 

    # Use correct entry type Document class
    entry_type = User
    # Select correct form for entry
    form_class = ResetpwdForm    

    if request.method == 'POST':
        form = form_class(request.POST)
        if form.is_valid():
            data = entry_type(**form.cleaned_data)  
            try:
                entry = entry_type.get_user_by_email(data['email'])
                if entry != None:
                    if entry['email'] == data['email']:
                        template_sender(
                                    entry, settings.DEFAULT_FROM_EMAIL, 
                                    _(u'[Mariage] : Reset password'), 
                                    'lepublicateur/email/reset_password.txt', 
                                    'lepublicateur/email/reset_password.html') 

                        messages.info(request, _('Reset password is correct'))  
                    else:
                        messages.error(request, _('Error, Reset password is not correct'))  
                else:
                    messages.error(request, _('Error, Reset password is not correct'))                      
            except IndexError:
                raise Http404
                                
            return HttpResponseRedirect(reverse('log-in'))
    else:
        form = form_class()

    context = {
        'form': form,
    }
    return render_to_response(_lookup_template('reset_password'), context,
                              context_instance=RequestContext(request))    

@csrf_protect
def change_password(request, uuid):
    """Display the reset password page.
    """
    d = {}
    d.update(csrf(request))
    if 's' in request.POST:
        csrf_token = request.COOKIES['csrf_token']
        if csrf_token == "":
            # Fall back to X-CSRFToken, to make things easier for AJAX
            request_csrf_token = request.META.get('HTTP_X_CSRFTOKEN', '')  
        else:
            request_csrf_token = csrf_token

        if request_csrf_token != csrf_token:
            return HttpResponseRedirect('start') 

    # Use correct entry type Document class
    entry_type = User
    # Select correct form for entry
    form_class = ChangepwdForm    

    if request.method == 'POST':       

        form = form_class(request.POST)
        if form.is_valid():
            data = entry_type(**form.cleaned_data)  
            try:
                entry = entry_type.get_user(request.POST['username'])  
            except IndexError:
                raise Http404
           
            if data['password'] == data['confirm_password']:
                password = entry_type.gen_password(data['password'])
                if password:
                    entry['password'] = unicode(password)
                  
                    # Save the entry to the DB          
                    entry.save()
                    entry.has_usable_password()
                    messages.info(request, _('Change password is correct'))  
                else:
                    messages.error(request, _('Error, Change password is not correct'))             

            return HttpResponseRedirect(reverse('log-in'))
    else:
        if request.method == 'GET':
            try:
                entry = entry_type.get_user_by_uuid(uuid)
                if entry:
                    form = form_class()
                    messages.info(request, _('Change password is correct'))  
                else:
                    messages.error(request, _('Error, Change password is not correct'))  
            except IndexError:
                raise Http404                

    context = {
        'entry': entry,
        'form': form,
    }
    return render_to_response(_lookup_template('change_password'), context,
                              context_instance=RequestContext(request))