import json
from django.views.generic import DetailView, ListView
from django.http import HttpResponse
from models import Article
from forms import ArticleFilterForm
from theme.models import Tag
from meta.views import MetadataMixin



class NewsList(ListView):
    model = Article
    template_name = 'article/news_list.html'
    paginate_by = 10

    def get_queryset(self):
        if self.request.GET:
            qs = self.model.objects.news()
            themes = self.request.GET.getlist('theme')
            if themes:
                qs = qs.filter(theme__id__in=themes)

            tags = self.request.GET.getlist('tag')
            if u'' in tags:
                tags.remove(u'')
            if tags:
                tags = tags[0].split(',')
                qs = qs.filter(tag__id__in=tags)

            return qs
        else:
            return self.model.objects.news()

    def get_context_data(self, **kwargs):
        context = super(NewsList, self).get_context_data(object_list=self.object_list)
        if self.request.GET:
            filter_form = ArticleFilterForm(self.request.GET)
            tags = self.request.GET.getlist('tag')
            if u'' in tags:
                tags.remove(u'')
            if tags:
                tags = tags[0].split(',')
                tag_qs = Tag.objects.filter(id__in=tags)
                tags = [{'id': str(tag.id), 'text': tag.name} for tag in tag_qs]
                filter_form.fields['tag'].widget.attrs['data-predifined'] = json.dumps(tags)
                filter_form.fields['tag'].widget.attrs['value'] = ''
        else:
            filter_form = ArticleFilterForm()

        context['article_filter_form'] = filter_form
        return context



class NewsDetail(MetadataMixin, DetailView):
    model = Article
    slug_field = 'slug'
    template_name = 'article/news.html'


class BlogList(ListView):
    model = Article
    template_name = 'article/blog_list.html'
    paginate_by = 10

    def get_queryset(self):
        if self.request.GET:
            qs = self.model.objects.blogs()

            themes = self.request.GET.getlist('theme')
            if themes:
                qs = qs.filter(theme__id__in=themes)

            tags = self.request.GET.getlist('tag')
            if u'' in tags:
                tags.remove(u'')
            if tags:
                tags = tags[0].split(',')
                qs = qs.filter(tag__id__in=tags)

            return qs
        else:
            return self.model.objects.blogs()

    def get_context_data(self, **kwargs):
        context = super(BlogList, self).get_context_data(object_list=self.object_list)
        if self.request.GET:
            filter_form = ArticleFilterForm(self.request.GET)
            tags = self.request.GET.getlist('tag')
            if u'' in tags:
                tags.remove(u'')
            if tags:
                tags = tags[0].split(',')
                tag_qs = Tag.objects.filter(id__in=tags)
                tags = [{'id': str(tag.id), 'text': tag.name} for tag in tag_qs]
                filter_form.fields['tag'].widget.attrs['data-predifined'] = json.dumps(tags)
                filter_form.fields['tag'].widget.attrs['value'] = ''
        else:
            filter_form = ArticleFilterForm()

        context['article_filter_form'] = filter_form
        return context



class BlogDetail(MetadataMixin, DetailView):
    model = Article
    slug_field = 'slug'
    template_name = 'article/article.html'