from django.conf import settings
from django.contrib.auth.models import User
from django.db.models import Count
from django.http import Http404
from django.shortcuts import redirect
from django.views.decorators.cache import cache_control
from django.views.generic import list_detail
from django.views.generic.simple import direct_to_template

from devel.models import MasterKey, PGPSignature
from main.models import Arch, Repo, Donor
from mirrors.models import MirrorUrl
from news.models import News
from .utils import get_recent_updates

@cache_control(max_age=300)
def index(request):
    pkgs = get_recent_updates()
    context = {
        'news_updates': News.objects.order_by('-postdate', '-id')[:15],
        'pkg_updates': pkgs,
    }
    return direct_to_template(request, 'public/index.html', context)

USER_LISTS = {
    'hackers': {
        'user_type': 'Hackers',
        'description': "This is a list of the current Parabola Hackers. They maintain the [libre] package repository and keep the [core], [extra] and [community] repositories clean of unfree software, in addition to doing any other developer duties.",
    },
    'fellows': {
        'user_type': 'Fellows',
        'description': "Below you can find a list of ex-hackers (aka project fellows). These folks helped make Parabola what it is today. Thanks!",
    },
}

@cache_control(max_age=300)
def userlist(request, user_type='hackers'):
    users = User.objects.order_by(
            'username').select_related('userprofile')
    if user_type == 'hackers':
        users = users.filter(is_active=True, groups__name="Hackers")
    elif user_type == 'fellows':
        users = users.filter(is_active=False,
                groups__name__in=["Hackers"])
    else:
        raise Http404

    users = users.distinct()
    context = USER_LISTS[user_type].copy()
    context['users'] = users
    return direct_to_template(request, 'public/userlist.html', context)

@cache_control(max_age=300)
def donate(request):
    context = {
        'donors': Donor.objects.filter(visible=True).order_by('name'),
    }
    return direct_to_template(request, 'public/donate.html', context)

@cache_control(max_age=300)
def download(request):
    return redirect('//wiki.parabolagnulinux.org/get', permanent=True)

@cache_control(max_age=300)
def feeds(request):
    context = {
        'arches': Arch.objects.all(),
        'repos': Repo.objects.all(),
    }
    return direct_to_template(request, 'public/feeds.html', context)

@cache_control(max_age=300)
def keys(request):
    master_keys = MasterKey.objects.select_related('owner', 'revoker',
            'owner__userprofile', 'revoker__userprofile').filter(
            revoked__isnull=True)
    sig_counts = PGPSignature.objects.filter(valid=True,
            expires__isnull=True).values_list('signer').annotate(
            Count('signer'))
    sig_counts = dict((key_id[-16:], ct) for key_id, ct in sig_counts)
    for key in master_keys:
        key.signature_count = sig_counts.get(key.pgp_key[-16:], 0)
    context = {
        'keys': master_keys,
    }
    return direct_to_template(request, 'public/keys.html', context)

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