from django.contrib import messages
from django.db.models import Sum
from django.http import HttpResponse, JsonResponse
from django.utils import timezone
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from django.views.generic import DetailView, CreateView
from django.views.generic.base import View
from pprint import pprint, pformat

from .forms import WithDrawForm, TmpCheckOrderForm, TmpPaymentAvisoForm
from .models import InvoiceHistory, WithDraw
from users.mixins import CheckForUserMixin
from users.models import User


class ScoreDetailView(CheckForUserMixin, DetailView):
    model = User
    template_name = 'score-detail.html'
    context_object_name = 'user_score'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        user_score_balance = InvoiceHistory.objects.filter(user=self.get_object()).aggregate(Sum('sum'))
        context['user_score_balance'] = user_score_balance['sum__sum'] or 0
        context['form'] = WithDrawForm
        return context


class AjaxableResponseMixin(object):
    def form_invalid(self, form):
        response = super().form_invalid(form)
        if self.request.is_ajax():
            return JsonResponse(form.errors, status=400)
        else:
            return response

    def form_valid(self, form):
        # import code; code.interact(local=dict(globals(), **locals()))
        response = super(AjaxableResponseMixin, self).form_valid(form)
        if self.request.is_ajax():
            messages.info(self.request, 'Ваша заявка на вывод средств принята!')
            data = {
                'pk': self.object.pk,
                'status': 'ok',
            }
            return JsonResponse(data)
        else:
            return response


# class WithDrawCreate(AjaxableResponseMixin, CreateView):
#     model = WithDraw
#     form_class = WithDrawForm
#     success_url = '/'

class WithDrawCreate(CreateView):
    model = WithDraw
    form_class = WithDrawForm

    def form_valid(self, form):
        if self.request.is_ajax():
            self.object = form.save()
            messages.info(self.request, 'Ваша заявка на вывод средств принята!')
            data = {
                'pk': self.object.pk,
                'status': 'ok',
            }
            return JsonResponse(data)
        return super().form_valid(form)

    def form_invalid(self, form):
        if self.request.is_ajax():
            return JsonResponse(form.errors, status=400)
        return super().form_invalid(form)



# Yandex Money ------------------------------------------------



class TmpCheckOrderView(View):
    form_class = TmpCheckOrderForm
    
    @method_decorator(csrf_exempt)
    def dispatch(self, request, *args, **kwargs):
        return super().dispatch(request, *args, **kwargs)
    
    def post(self, request, *args, **kwargs):
        form = self.form_class(request.POST)
        
        if form.is_valid():
            res = """<?xml version="1.0" encoding="utf-8"?>
                <checkOrderResponse
                    performedDatetime="{date}"
                    code="0"
                    invoiceId="{invoice_id}"
                    shopId="{shop_id}"/>
            """.format(
                date=timezone.now().isoformat(),
                invoice_id=form.cleaned_data.get('invoiceId'),
                shop_id=form.cleaned_data.get('shopId'),
            )
            
            return HttpResponse(res, content_type='application/xml')
        else:
            res = """<?xml version="1.0" encoding="utf-8"?>
                <checkOrderResponse
                    performedDatetime="{date}"
                    code="1"
                    invoiceId="{invoice_id}"
                    shopId="{shop_id}"
                    message="Check order, validation error"
                    techMessage="Check order, validation error"/>
            """.format(
                date=timezone.now().isoformat(),
                invoice_id=form.cleaned_data.get('invoiceId'),
                shop_id=form.cleaned_data.get('shopId'),
            )
            
            # return HttpResponse(res, content_type='application/xml')
            return HttpResponse('<pre>{msg}</pre>'.format(msg=pformat(form.errors))) # Debug


class TmpPaymentAvisoView(View):
    form_class = TmpPaymentAvisoForm
    
    @method_decorator(csrf_exempt)
    def dispatch(self, request, *args, **kwargs):
        return super().dispatch(request, *args, **kwargs)
    
    def post(self, request, *args, **kwargs):
        form = self.form_class(request.POST)
        
        if form.is_valid():
            res = """<?xml version="1.0" encoding="utf-8"?>
                <paymentAvisoResponse
                    performedDatetime="{date}"
                    code="0"
                    invoiceId="{invoice_id}"
                    shopId="{shop_id}"/>
            """.format(
                date=timezone.now().isoformat(),
                invoice_id=form.cleaned_data.get('invoiceId'),
                shop_id=form.cleaned_data.get('shopId'),
            )
            
            return HttpResponse(res, content_type='application/xml')
        else:
            res = """<?xml version="1.0" encoding="utf-8"?>
                <paymentAvisoResponse
                    performedDatetime="{date}"
                    code="1"
                    message="Payment aviso, validation error"
                    techMessage="Payment aviso, validation error"/>
            """.format(date=timezone.now().isoformat())
            
            # return HttpResponse(res, content_type='application/xml')
            return HttpResponse('<pre>{msg}</pre>'.format(msg=pformat(form.errors))) # Debug