from django.shortcuts import render
from django.urls import reverse_lazy, reverse
from django.views.generic.base import TemplateView
from django.views.generic.edit import FormView, CreateView, UpdateView, DeleteView
from django.views.generic.detail import DetailView
from django.views.generic.list import ListView

from charts.models import Chart, Dressing
from charts.forms import DressingForm


from django.db.models import (Exists, OuterRef,
    Prefetch, Subquery, Count, Sum, F, Q, Value)
from django.db.models.functions import Length, Upper

# Entries
class ListView(ListView):
    model = Dressing
    pk_url_kwarg = 'entry_pk'

class CreateView(CreateView):
    model = Dressing
    pk_url_kwarg = 'entry_pk'
    template_name = 'charts/entry_create_form.html'
    form_class = DressingForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['chart'] = Chart.objects.get(pk=self.kwargs['pk'])
        return context

    def form_valid(self, form):
        form.instance.chart = Chart.objects.get(pk=self.kwargs['pk'])
        return super().form_valid(form)

    def get_success_url(self):
        return reverse('chart-detail', kwargs={'pk': self.kwargs['pk']})

class DetailView(DetailView):
    model = Dressing
    pk_url_kwarg = 'entry_pk'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['chart'] = Chart.objects.get(pk=self.kwargs['pk'])
        return context

class UpdateView(UpdateView):
    model = Dressing
    pk_url_kwarg = 'entry_pk'
    template_name = 'charts/entry_form.html'
    form_class = DressingForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['chart'] = Chart.objects.get(pk=self.kwargs['pk'])
        return context

class DeleteView(DeleteView):
    model = Dressing
    pk_url_kwarg = 'entry_pk'
    
    def get_success_url(self):
        return reverse('chart-detail', kwargs={'pk': self.kwargs['pk']})