# -*- coding: utf-8 -*-
import json

from django.views.generic import DetailView
from django.conf import settings
from django.shortcuts import get_object_or_404
from django.utils.translation import ugettext as _

from functions.custom_views import ListView

from theme.models import Tag, Theme
from meta.views import MetadataMixin

from .models import Article
from .forms import BlogFilterForm, NewsFilterForm


class NewsList(MetadataMixin, ListView):
    model = Article
    template_name = 'client/article/news_list.html'
    paginate_by = settings.CLIENT_PAGINATION

    def get_queryset(self):
        """
        filters queryset by get params if they exists
        """
        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().filter(publish_date__isnull=False)

    def get_context_data(self, **kwargs):
        """
        add filter form to context
        """
        context = super(NewsList, self).get_context_data(object_list=self.object_list)
        if self.request.GET:
            filter_form = NewsFilterForm(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 = NewsFilterForm()

        context['article_filter_form'] = filter_form
        return context


class EventNewsList(MetadataMixin, ListView):
    model = Article
    template_name = 'client/article/event_news_list.html'
    paginate_by = settings.CLIENT_PAGINATION

    def get_queryset(self):
        """
        filters queryset by event if exists or 404
        """
        slug = self.kwargs.get('slug')
        event_model = self.kwargs.get('event_model')
        self.event = get_object_or_404(event_model.enable, url=slug)

        params = {event_model.__name__.lower(): self.event}

        qs = self.model.objects.news()\
            .filter(publish_date__isnull=False, **params).order_by('-publish_date')
        return qs

    def get_context_data(self, **kwargs):
        """
        add filter form to context
        """
        context = super(EventNewsList, self).get_context_data(object_list=self.object_list)
        context['event'] = self.event
        return context


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


class BlogList(MetadataMixin, ListView):
    model = Article
    template_name = 'client/article/blog_list.html'
    paginate_by = settings.CLIENT_PAGINATION

    def get_queryset(self):
        """
        filters queryset by get params if they exists
        """
        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):
        """
        add filter form to context
        """
        context = super(BlogList, self).get_context_data(object_list=self.object_list)
        if self.request.GET:
            filter_form = BlogFilterForm(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 = BlogFilterForm()

        context['article_filter_form'] = filter_form
        return context


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

    def get_queryset(self):
        qs = super(BlogDetail, self).get_queryset()
        return qs.filter(draft=False)


class NewsTagCatalog(MetadataMixin, ListView):
    """
    returns queryset filtered by filtered_object and dates
    filtered_object can be theme or tag
    """
    model = Article
    template_name = 'client/article/catalog.html'
    catalog_url = '/news/tag/'
    filter_object = None
    year = None
    month = None

    def get_queryset(self):
        slug = self.kwargs.get('slug')
        tag = get_object_or_404(Tag, url=slug)
        self.kwargs['tag'] = tag
        self.filter_object = tag
        qs = Article.objects.news().filter(tag=tag)
        year = self.kwargs.get('year')

        if year:
            qs = qs.filter(publish_date__year=year)
            # info for breadscrumbs
            self.year = {'text': year, 'link': '%s%s/%s/'%(self.catalog_url, self.filter_object.url, year)}

        month = self.kwargs.get('month')

        monthes = {'jan': {'value': 1, 'name': _(u'Январь')}, 'feb': {'value': 2, 'name': _(u'Февраль')},
                   'mar': {'value': 3, 'name': _(u'Март')}, 'apr': {'value': 4, 'name': _(u'Апрель')},
                   'may': {'value': 5, 'name': _(u'Май')}, 'jun': {'value': 6, 'name': _(u'Июнь')},
                   'jul': {'value': 7, 'name': _(u'Июль')}, 'aug': {'value': 8, 'name': _(u'Август')},
                   'sep': {'value': 9, 'name': _(u'Сентябрь')}, 'oct': {'value': 10, 'name': _(u'Октябрь')},
                   'nov': {'value': 11, 'name': _(u'Ноябрь')}, 'dec': {'value': 12, 'name': _(u'Декабрь')}}

        if month and monthes.get(month):
            qs = qs.filter(publish_date__month=monthes[month]['value'])

            self.month = {'text': monthes[month]['name'], 'link': '%s%s/%s/%s/'%(self.catalog_url, self.filter_object.url, year, month)}
        return qs

    def get_context_data(self, **kwargs):
        context = super(NewsTagCatalog, self).get_context_data(**kwargs)
        context['filter_object'] = self.filter_object
        context['year'] = self.year
        context['month'] = self.month
        context['catalog_url'] = self.catalog_url
        return context


class BlogsFilterCatalog(MetadataMixin, ListView):
    model = Article
    template_name = 'client/article/catalog.html'
    catalog_url = '/blogs/tag/'
    filter_object = None
    year = None
    month = None

    def get_queryset(self, **kwargs):
        slug = self.kwargs.get('slug')
        filter_slug = self.kwargs['filter']
        if filter_slug == 'tag':
            tag = get_object_or_404(Tag, url=slug)
            self.kwargs['tag'] = tag
            self.filter_object = tag
            qs = Article.objects.blogs().filter(tag=tag)
        else:
            theme = get_object_or_404(Theme, url=slug)
            self.kwargs['theme'] = theme
            self.filter_object = theme
            qs = Article.objects.blogs().filter(theme=theme)
        year = self.kwargs.get('year')

        if year:
            qs = qs.filter(publish_date__year=year)
            # info for breadscrumbs
            self.year = {'text': year, 'link': '%s%s/%s/' % (self.catalog_url, self.filter_object.url, year)}

        month = self.kwargs.get('month')

        monthes = {'jan': {'value': 1, 'name': _(u'Январь')}, 'feb': {'value': 2, 'name': _(u'Февраль')},
                   'mar': {'value': 3, 'name': _(u'Март')}, 'apr': {'value': 4, 'name': _(u'Апрель')},
                   'may': {'value': 5, 'name': _(u'Май')}, 'jun': {'value': 6, 'name': _(u'Июнь')},
                   'jul': {'value': 7, 'name': _(u'Июль')}, 'aug': {'value': 8, 'name': _(u'Август')},
                   'sep': {'value': 9, 'name': _(u'Сентябрь')}, 'oct': {'value': 10, 'name': _(u'Октябрь')},
                   'nov': {'value': 11, 'name': _(u'Ноябрь')}, 'dec': {'value': 12, 'name': _(u'Декабрь')}}

        if month and monthes.get(month):
            qs = qs.filter(publish_date__month=monthes[month]['value'])

            self.month = {'text': monthes[month]['name'], 'link': '%s%s/%s/%s/'%(self.catalog_url, self.filter_object.url, year, month)}
        return qs

    def get_context_data(self, **kwargs):
        context = super(BlogsFilterCatalog, self).get_context_data(**kwargs)
        context['filter_object'] = self.filter_object
        context['type'] = 'article'
        context['year'] = self.year
        context['month'] = self.month
        context['catalog_url'] = self.catalog_url
        return context