# -*- coding: utf-8 -*-
import json
import hashlib

from django.shortcuts import render, redirect, get_object_or_404
from django.http import Http404, HttpResponseRedirect, HttpResponseForbidden, HttpResponse
from django.views.decorators.csrf import csrf_exempt
from django.utils.http import urlquote
from django.contrib.auth.decorators import login_required
from django.template.response import TemplateResponse
from django.core.urlresolvers import reverse
from django.views.decorators.csrf import csrf_protect
from django.db.models import Q
from django.conf import settings

from yandex_money.models import Payment

from project.customer import consts

from ..models import License, LicensePrice
from ..forms import LicenseForm, YaForm
from ..utils import raise_if_no_profile


@login_required
@csrf_protect
def yandex_pay(request, payment_id):
    template_name = 'customer/profile/yandex.html'

    payment = Payment.objects.get(pk=payment_id)

    if payment.user != request.user:
        raise Exception(u'[yandex_pay error] Different users! | payment.user_id = %d ; request.user_id = %d' % (payment.user_id, request.user.pk,))

    form = YaForm(instance=payment)

    return render(request, template_name, {'form': form, 'ya_url': settings.YANDEX_MONEY_PAYMENT_URL})


@login_required
@csrf_protect
def order_license(request):
    """заказ лицензии
    """
    raise_if_no_profile(request)

    template_name = 'customer/profile/license.html'

    # срок лицензии. по умолчанию, 6 месяцев
    # TODO don't use the magic index `1`. maybe add field to LicensePrice model to mark the default record via admin
    term_default = LicensePrice.objects.all()[1]

    form = LicenseForm(
        request.POST or None,
        initial = {
            'term': term_default,
            'payform': consts.PAYFORM_BEZNAL,
        }
    )

    if form.is_valid():
        _payform = int(form.cleaned_data['payform'])

        new_license = License(
            company = request.user.profile,
            term = form.cleaned_data['term'].term,
            payform = _payform,
            pay_sum = form.cleaned_data['term'].price,
        )
        new_license.save()

        if _payform == consts.PAYFORM_CARD:
            payment, _ = Payment.objects.get_or_create(
                order_amount = form.cleaned_data['term'].price,
                payment_type = Payment.PAYMENT_TYPE.AC,
                order_number = new_license.pk,
            )

            payment.user = request.user
            # payment.cps_email = request.user.email
            payment.customer_number = request.user.email
            # payment.customer_number = request.user.profile.get_company_name().strip()

            payment.save()

            return redirect(reverse('yamoney_confirm', kwargs={'payment_id': payment.pk}))

        return redirect(reverse('customer_license_list'))

    return render(request, template_name, {'form': form})


@login_required
def license_list(request):
    """Список счетов на лицензии
    """
    raise_if_no_profile(request)

    template_name = 'customer/profile/license_list.html'

    # TODO maybe explicitly list license statuses?
    licenses = License.objects.filter(company=request.user.profile, status__gt=consts.LICENSE_TEST_PERIOD, deleted=False).order_by('-id')

    return render(request, template_name, {'licenses': licenses})


@login_required
def paid_list(request):
    """Оплаченные лицензии
    """
    raise_if_no_profile(request)

    template_name = 'customer/profile/paid_list.html'

    # TODO почему в оплаченных лицензиях выводится пробный период и замороженные?
    licenses = (License.objects
        .filter(company=request.user.profile, deleted=False)
        .filter(Q(status__in = [consts.LICENSE_TEST_PERIOD, consts.LICENSE_ACTIVE, consts.LICENSE_EXPIRED]) |
            Q(order_status__in=[consts.ORDER_PAID, consts.ORDER_SUSPENDED]))
        .order_by('-id')
    )

    return render(request, template_name, {'licenses': licenses})


@login_required
def delete_license(request, pk):
    if not request.is_ajax():
        return HttpResponseBadRequest()

    raise_if_no_profile(request)

    try:
        license = License.objects.get(pk=pk, company=request.user.profile,
            order_status=consts.ORDER_UNPAID, payform__gt=consts.PAYFORM_FREE)
        if request.method == 'POST':
            license.deleted = True
            license.save()
            dictionary = {'res': 'Ok', 'id': pk}
    except:
        dictionary = {'res': 'fail'}

    data = json.dumps(dictionary)
    return HttpResponse(data, mimetype='application/json')


#@csrf_exempt
#def payment_result(request):
#    if request.method == 'POST':
#        try:
#            nInvId = request.POST.get('InvId')
#            nOutSum = request.POST.get('OutSum')
#            sSignatureValue = request.POST.get('SignatureValue')
#            SignatureValue = hashlib.md5('%s:%s:%s' % (nOutSum, nInvId, settings.ROBOKASSA_PASSWORD2)).hexdigest() # robokassa???
#            if sSignatureValue.upper() == SignatureValue.upper():
#                license = License.objects.get(pk=nInvId)
#                license.set_paid()
#                license.save()
#                return HttpResponse('OK%s' % nInvId)
#            else:
#                return HttpResponse('bad sign')
#        except License.DoesNotExist:
#            return HttpResponseForbidden()
#    else:
#        return HttpResponseForbidden()


@csrf_exempt
def payment_success(request):
    nInvId = request.GET.get('orderNumber')
    order = get_object_or_404(License, pk=nInvId)
    context = {'success': True, 'order_num': nInvId}
    return TemplateResponse(request, 'customer/profile/end_order.html', context)


@csrf_exempt
def payment_fail(request):
    message = u"Возникла проблема. Ваш Заказ не оплачен. Попробуйте оформить заявку снова, или позвоните по номеру."
    return TemplateResponse(request, 'customer/profile/end_order.html', {'message': message, 'success': False})