# -*- coding: utf-8 -*-
import json
import re
from django.http import HttpResponse
from django.shortcuts import redirect, get_object_or_404
from django.shortcuts import render_to_response
from django.template import RequestContext
from .models import Banner, BannerGroup, URL, Top
from expobanner.utils import get_banner_by_params, get_client_ip, get_top_events, get_referer_view, set_cookie


def click(request, banner_id):
    banner = get_object_or_404(Banner, pk=banner_id)
    banner.log(request, 2)
    return redirect(banner.url)


def view(request, banner_id):
    banner = get_object_or_404(Banner, pk=banner_id)
    banner.log(request, 1)
    return redirect(banner.img.url)

def get_banners(request):
    """
    return list of banners filtered by sending data
    """
    url = get_referer_view(request, default='/')
    # get urls by current url
    urls = URL.cached.all()
    good_urls = []
    for u in urls:
        if u.regex:
            try:
                url_re = re.compile(u.url)
            except:
                continue
            if url_re.findall(url):
                good_urls.append(u)
        elif url == u.url:
            good_urls.append(u)
    # fill parameters dict
    params = {'theme': request.GET.getlist('theme', []),
              'tag': request.GET.get('tag'),
              'country': request.GET.get('country'),
              'city': request.GET.get('city'),
              'ip': get_client_ip(request)}

    group_banners = BannerGroup.cached.group_banners()
    result = []
    cookie = None
    # get banners for all groups
    places = request.GET.getlist('places', [])

    for group, banners in group_banners.iteritems():
        if group not in places:
            # on this page there is no such group
            continue
        banner = get_banner_by_params(banners, good_urls, params, request)
        if banner:
            if banner.html:
                text = banner.text
                img = ''
                alt = ''
                is_img = False
            else:
                text = ''
                try:
                    img = banner.img.url
                except ValueError:
                    continue
                alt = banner.alt
                is_img = True
            result.append({'id': group,
                           'url': banner.get_click_link(),
                           'is_html': banner.html,
                           'is_flash': banner.flash,
                           'is_img': is_img,
                           'is_popup': banner.popup,
                           'img': img,
                           'alt': alt,
                           'text': text
                           })
            if banner.popup:
                cookie = banner.cookie
            # add view log
            banner.log(request, 1)
    response = HttpResponse(json.dumps(result, indent=4), content_type='application/json')
    if cookie:
        response = set_cookie(response, cookie, '1')

    return response


def get_top(request):
    catalog = request.GET.get('catalog')
    params = {'theme': request.GET.getlist('theme', []),
              'tag': request.GET.get('tag'),
              'country': request.GET.get('country'),
              'city': request.GET.get('city'),
              'catalog': catalog,
              'month': request.GET.get('month')}

    tops = Top.cached.all()
    events = get_top_events(tops, params, request)
    context = {'objects': events}
    if catalog == 'places':
        return render_to_response('client/includes/exposition/expo_top_place.html', context, context_instance=RequestContext(request))
    return render_to_response('client/includes/exposition/expo_top.html', context, context_instance=RequestContext(request))