from django.template import RequestContext
from misago.acl.utils import ACLError403, ACLError404
from misago.forums.models import Forum
from misago.threads.models import Thread, Post
from misago.threads.views.base import BaseView
from misago.views import error403, error404
from misago.utils import make_pagination, slugify

class DetailsView(BaseView):
    def fetch_target(self, kwargs):
        self.thread = Thread.objects.get(pk=kwargs['thread'])
        self.forum = self.thread.forum
        self.proxy = Forum.objects.parents_aware_forum(self.forum)
        self.request.acl.forums.allow_forum_view(self.forum)
        self.request.acl.threads.allow_thread_view(self.request.user, self.thread)
        self.parents = Forum.objects.forum_parents(self.forum.pk, True)
        self.post = Post.objects.select_related('user').get(pk=kwargs['post'], thread=self.thread.pk)
        self.post.thread = self.thread
        self.request.acl.threads.allow_post_view(self.request.user, self.thread, self.post)
        self.request.acl.users.allow_details_view()

    def __call__(self, request, **kwargs):
        self.request = request
        self.forum = None
        self.thread = None
        self.post = None
        try:
            self.fetch_target(kwargs)
        except (Forum.DoesNotExist, Thread.DoesNotExist, Post.DoesNotExist):
            return error404(self.request)
        except ACLError403 as e:
            return error403(request, e.message)
        except ACLError404 as e:
            return error404(request, e.message)
        return request.theme.render_to_response('threads/details.html',
                                                {
                                                 'forum': self.forum,
                                                 'parents': self.parents,
                                                 'thread': self.thread,
                                                 'post': self.post,
                                                 },
                                                context_instance=RequestContext(request))