views.py

# -*- coding: utf-8 -*-
import json
import uuid
from datetime import date, timedelta
from django.http import HttpResponse, HttpResponseBadRequest
from django.conf import settings
from django.contrib.sites.models import Site
from django.contrib import messages
from django.core.urlresolvers import reverse
from django.core.mail import EmailMultiAlternatives, send_mail
from django.template.loader import render_to_string
from django.views.decorators.csrf import csrf_exempt
from django.shortcuts import render, redirect, get_object_or_404
from formtools.wizard.views import SessionWizardView
from django.contrib.admin.views.decorators import staff_member_required
from django.utils import timezone
from django.db.models import Q
import mercadopago

from lacalma.models import Reserva, Departamento, Temporada
from lacalma.forms import ReservaForm1, ReservaForm2


class ReservaWizard(SessionWizardView):
    _reserva = None

    def get_template_names(self):
        return 'step_%s.html' % self.steps.current

    def get_context_data(self, form, **kwargs):

        context = super(ReservaWizard, self).get_context_data(form=form, **kwargs)
        hoy = date.today()
        context['hoy'] = str(hoy)

        reservas_pendientes = {}
        reservas_confirmadas = {}
        for depto in Departamento.objects.all():
            pendientes = []
            confirmadas = []
            for reserva in Reserva.objects.filter(departamento=depto, hasta__gte=hoy, estado=Reserva.ESTADOS.pendiente):
                pendientes.extend((d.isoformat() for d in reserva.rango()))
            for reserva in Reserva.objects.filter(departamento=depto, hasta__gte=hoy, estado=Reserva.ESTADOS.confirmada):
                confirmadas.extend((d.isoformat() for d in reserva.rango()))

            reservas_pendientes[str(depto.id)] = pendientes
            reservas_confirmadas[str(depto.id)] = confirmadas
        context['reservas_pendientes'] = json.dumps(reservas_pendientes)
        context['reservas_confirmadas'] = json.dumps(reservas_confirmadas)
        context['deptos'] = Departamento.objects.all()

        if self.steps.current != 'fechas':
            fe = self.get_form('fechas', data=self.storage.get_step_data('fechas'))
            fe.is_valid()
            reserva = Reserva(desde=fe.cleaned_data['desde'],
                              hasta=fe.cleaned_data['hasta'],
                              departamento=fe.cleaned_data['departamento'])
            reserva.calcular_costo()
            reserva.calcular_vencimiento()
            context['reserva'] = reserva
        return context

    def done(self, form_list, **kwargs):
        data = self.get_all_cleaned_data()
        del data['fechas']
        del data['email_confirma']
        reserva = Reserva(**data)
        reserva.calcular_vencimiento()
        reserva.save()

        site = Site.objects.get_current()
        self.request.session['reserva_reciente'] = reserva.id
        if reserva.forma_pago == Reserva.METODO.deposito:

            mail_txt = render_to_string('mail_txt.html', {'reserva': reserva})
            mail_html = render_to_string('mail.html', {'reserva': reserva})

            msg = EmailMultiAlternatives(
                'Reserva %s - Las Grutas /ref. #%s' % (site.name, reserva.id),
                mail_txt,
                'info@lacalma-lasgrutas.com.ar',
                [reserva.email],
                cc=['info@lacalma-lasgrutas.com.ar']
            )
            msg.attach_alternative(mail_html, "text/html")
            msg.send()
            return redirect('gracias')
        else:
            reserva.generar_cupon_mercadopago()
            return redirect(reserva.mp_url)


reserva_view = ReservaWizard.as_view([('fechas', ReservaForm1), ('datos', ReservaForm2)])


def gracias(request):
    reserva_id = request.session.pop('reserva_reciente', None)
    reserva = Reserva.objects.get(id=reserva_id) if reserva_id else None
    return render(request, 'gracias.html', {'gracias': True, 'reserva': reserva})


def gracias_mp(request):
    reserva_id = request.session.pop('reserva_reciente', None)
    reserva = Reserva.objects.get(id=reserva_id) if reserva_id else None
    return render(request, 'gracias_mp.html', {'gracias': True, 'reserva': reserva})


@staff_member_required
def presupuesto(request, id):
    reserva = get_object_or_404(Reserva, id=id)
    return render(request, 'presupuesto.html', {'reserva': reserva})


@staff_member_required
def regenerar_mercadopago(request, id):
    reserva = get_object_or_404(Reserva, id=id)
    reserva.generar_cupon_mercadopago()
    messages.success(request, 'URL de pago actualizada')
    return redirect(reverse('admin:lacalma_reserva_change', args=[id]))


@csrf_exempt
def mp_notification(request):
    mp = mercadopago.MP(settings.MP_CLIENT_ID, settings.MP_CLIENT_SECRET)
    if settings.MP_SANDBOX_MODE:
        mp.sandbox_mode(True)

    if request.GET.get('topic', '') == 'payment':
        site = Site.objects.get_current()

        payment_info = mp.get_payment_info(request.GET["id"])
        send_mail('MP payment info - %s' % site.name, json.dumps(payment_info, indent=2), 'info@lacalma-lasgrutas.com.ar',
                  ['gaitan@gmail.com'], fail_silently=False)

        if payment_info['status'] == 200:
            mp_id = payment_info['response']['collection']['external_reference']
            status = payment_info['response']['collection']['status']
            if status == 'approved':
                reserva = get_object_or_404(Reserva, mp_id=mp_id)

                reserva.estado = reserva.ESTADOS.confirmada
                reserva.fecha_deposito_reserva = timezone.now()
                reserva.deposito_reserva = reserva.costo_total
                reserva.save()

                mail_txt = render_to_string('mail_mp_txt.html', {'reserva': reserva})
                mail_html = render_to_string('mail_mp.html', {'reserva': reserva})

                msg = EmailMultiAlternatives(
                    u'Confirmación de Reserva %s - Las Grutas /ref. #%s' % (site.name, reserva.id),
                    mail_txt, 'info@lacalma-lasgrutas.com.ar', [reserva.email],
                    cc=['info@lacalma-lasgrutas.com.ar'])
                msg.attach_alternative(mail_html, "text/html")
                msg.send()

            return HttpResponse('ok')
    return HttpResponseBadRequest('bad boy')


def temporadas_vigentes(requests):
    now = timezone.now()
    one_year = now + timedelta(days=365)
    temporadas = Temporada.objects.filter(
        Q(desde__range=(now, one_year)) | Q(hasta__range=(now, one_year))
    ).order_by('desde', '-precio')
    desde = temporadas.first().desde.year
    hasta = temporadas.last().hasta.year
    return render(
        requests, 'temporadas_vigentes.html', {
            'temporadas': temporadas,
            'desde': desde,
            'hasta': hasta
        }
    )