from django.shortcuts import render, get_object_or_404
from django.urls import reverse

from django.views.generic.edit import CreateView, FormView
from django.views.generic.base import TemplateView
from django.views.generic.list import ListView
from django.views.generic.detail import DetailView

from .models import *
from .forms import *
from .services import *


class OrderConfirmationView(TemplateView):
    template_name = 'app/order_confirmation.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        po_id = self.request.session.pop('product_order_id', None)
        context['product_order'] = get_object_or_404(ProductOrder, id=po_id)
        return context


class ProductOneTimeOrderView(FormView):
    form_class = ProductOneTimeOrderForm
    template_name = 'app/productorder_form.html'

    def get_success_url(self):
        return reverse("order-confirmation")

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()

        # Set the product so the form can retrieve the resources
        product = get_object_or_404(Product, slug=self.kwargs['product'])
        kwargs['resources'] = product.resources.all()
        return kwargs

    def get_initial(self):
        """
        Initial values for the form
        """

        initial = super().get_initial()

        initial['product'] = self.kwargs['product']

        if 'timeframe' in self.kwargs:
            initial['timeframe'] = self.kwargs['timeframe']
        return initial

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['product'] = get_object_or_404(Product, slug=self.kwargs['product'])
        if 'timeframe' in context:
            context['timeframe'] = get_object_or_404(TimeFrame, slug=self.kwargs['timeframe'])
        return context

    def form_valid(self, form):
        product = get_object_or_404(Product, slug=form.cleaned_data['product'])

        print("We got a valid form, let's create the order, listing fields:\n------")
        for f in form.fields:
            print(f)
        print(form.cleaned_data)

        if 'timeframe' in form.cleaned_data:
            timeframe = get_object_or_404(TimeFrame, slug=form.cleaned_data['timeframe'])
        else:
            timeframe = None

        po = order_product(product, timeframe, form.cleaned_data)
        self.request.session['product_order_id'] = po.id
        return super().form_valid(form)

class ProductOrderView(ProductOneTimeOrderView):
    form_class = ProductOrderForm

class ProductDetailView(DetailView):
    model = Product

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['productorder'] = reverse('product-order', kwargs={'product': self.object.slug })
        context['timeframes'] = context['product'].valid_timeframes()
        context['has_one_time_price'] = context['product'].has_one_time_price()
        print(context)
        return context


class ProductListView(ListView):
    model = Product


class ProductSelectView(CreateView):
    model = ProductOrder
    fields = ['product' ]

class IndexView(TemplateView):
    """
    The starting page containing a short intro
    """

    template_name = "app/index.html"

class Yearly(TemplateView):
    template_name = "app/config_product.html"

    def get_context_data(self, **kwargs):
        context = super(Yearly, self).get_context_data(**kwargs)
        context['current_year'] = self.current_year
        context['current_month'] = self.current_month
        return context