from django.shortcuts import render

# Create your views here.
from .models import Comment
from blog.models import Article
from .forms import CommentForm
from django.views.generic.edit import FormView
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.contrib.auth import get_user_model
from django import forms


class CommentPostView(FormView):
    form_class = CommentForm
    template_name = 'blog/article_detail.html'

    def get(self, request, *args, **kwargs):
        article_id = self.kwargs['article_id']
        url = reverse('blog:detail', kwargs={'article_id': article_id})
        return HttpResponseRedirect(url + "#comments")

    def form_invalid(self, form):
        article_id = self.kwargs['article_id']
        article = Article.objects.get(pk=article_id)
        u = self.request.user

        if self.request.user.is_authenticated:
            form.fields.update({
                'email': forms.CharField(widget=forms.HiddenInput()),
                'name': forms.CharField(widget=forms.HiddenInput()),
            })
            user = self.request.user
            form.fields["email"].initial = user.email
            form.fields["name"].initial = user.username

        return self.render_to_response({
            'form': form,
            'article': article
        })

    def form_valid(self, form):
        """提交的数据验证合法后的逻辑"""
        user = self.request.user

        article_id = self.kwargs['article_id']
        article = Article.objects.get(pk=article_id)
        if not self.request.user.is_authenticated():
            email = form.cleaned_data['email']
            username = form.cleaned_data['name']

            user = get_user_model().objects.create_user(username=username, email=email, password=None,
                                                        nikename=username)
        author_id = user.pk

        comment = form.save(False)
        comment.article = article

        comment.author = get_user_model().objects.get(pk=author_id)

        if form.cleaned_data['parent_comment_id']:
            parent_comment = Comment.objects.get(pk=form.cleaned_data['parent_comment_id'])
            comment.parent_comment = parent_comment

        comment.save(True)

        # return HttpResponseRedirect(article.get_absolute_url() + "#div-comment-" + comment.pk)
        return HttpResponseRedirect("%s#div-comment-%d" % (article.get_absolute_url(), comment.pk))