from django.http import HttpResponseForbidden
from django.core.urlresolvers import reverse
from django.contrib.auth.mixins import PermissionRequiredMixin
from django.views.generic import ListView, DetailView, CreateView
from django.views.generic.edit import FormMixin

from .models import Project, Portfolio
from .forms import ProjectForm, PortfolioForm, AnswerForm


class ProjectListView(ListView):
    model = Project

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)

        return context


class ProjectDetailView(FormMixin, DetailView):
    model = Project
    form_class = AnswerForm

    def get_success_url(self):
        return reverse('projects:detail', kwargs={'pk': self.object.pk})

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['form'] = self.get_form()
        return context

    def get_form_kwargs(self, **kwargs):
        kwargs = super().get_form_kwargs(**kwargs)
        kwargs.update({'project_id': self.object.pk})
        return kwargs

    def post(self, request, *args, **kwargs):
        if not request.user.is_authenticated():
            return HttpResponseForbidden()

        self.object = self.get_object()
        form = self.get_form()
        if form.is_valid():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)

    def form_valid(self, form):
        answer = form.instance
        answer.user = self.request.user
        answer.save()
        return super().form_valid(form)


class ProjectCreateView(PermissionRequiredMixin, CreateView):
    model = Project
    permission_required = ('projects.add_project',)
    raise_exception = True
    form_class = ProjectForm
    success_url = '/projects/' # TODO: Use `reverse_lazy('projects-list')` from `django.core.urlresolvers`
    
    def form_valid(self, form):
        project = form.instance
        project.user = self.request.user
        project.save()
        
        return super().form_valid(form)


class PortfolioCreateView(PermissionRequiredMixin, CreateView):
    model = Portfolio
    form_class = PortfolioForm
    permission_required = ('projects.add_portfolio',)
    success_url = '/projects/'

# import code; code.interact(local=dict(globals(), **locals()))