Sith/com/views.py

# -*- coding:utf-8 -*
#
# Copyright 2016,2017
# - Skia <skia@libskia.so>
# - Sli <antoine@bartuccio.fr>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#

from django.shortcuts import redirect, get_object_or_404
from django.http import HttpResponseRedirect
from django.views.generic import ListView, DetailView, View
from django.views.generic.edit import UpdateView, CreateView, DeleteView
from django.views.generic.detail import SingleObjectMixin
from django.utils.translation import gettext_lazy as _
from django.urls import reverse, reverse_lazy
from django.core.exceptions import ValidationError
from django.utils import timezone
from django.conf import settings
from django.db.models import Max
from django.forms.models import modelform_factory
from django.core.exceptions import PermissionDenied
from django import forms

from datetime import timedelta
from smtplib import SMTPRecipientsRefused

from com.models import Sith, News, NewsDate, Weekmail, WeekmailArticle, Screen, Poster
from core.views import (
    CanViewMixin,
    CanEditMixin,
    CanEditPropMixin,
    TabedViewMixin,
    CanCreateMixin,
    QuickNotifMixin,
)
from core.views.forms import SelectDateTime, MarkdownInput
from core.models import Notification, RealGroup, User
from club.models import Club, Mailing
from core.views.forms import TzAwareDateTimeField


# Sith object

sith = Sith.objects.first


class PosterForm(forms.ModelForm):
    class Meta:
        model = Poster
        fields = [
            "name",
            "file",
            "club",
            "screens",
            "date_begin",
            "date_end",
            "display_time",
        ]
        widgets = {"screens": forms.CheckboxSelectMultiple}
        help_texts = {"file": _("Format: 16:9 | Resolution: 1920x1080")}

    date_begin = TzAwareDateTimeField(
        label=_("Start date"),
        required=True,
        initial=timezone.now().strftime("%Y-%m-%d %H:%M:%S"),
    )
    date_end = TzAwareDateTimeField(label=_("End date"), required=False)

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop("user", None)
        super(PosterForm, self).__init__(*args, **kwargs)
        if self.user:
            if not self.user.is_com_admin:
                self.fields["club"].queryset = Club.objects.filter(
                    id__in=self.user.clubs_with_rights
                )
                self.fields.pop("display_time")


class ComTabsMixin(TabedViewMixin):
    def get_tabs_title(self):
        return _("Communication administration")

    def get_list_of_tabs(self):
        tab_list = []
        tab_list.append(
            {"url": reverse("com:weekmail"), "slug": "weekmail", "name": _("Weekmail")}
        )
        tab_list.append(
            {
                "url": reverse("com:weekmail_destinations"),
                "slug": "weekmail_destinations",
                "name": _("Weekmail destinations"),
            }
        )
        tab_list.append(
            {"url": reverse("com:info_edit"), "slug": "info", "name": _("Info message")}
        )
        tab_list.append(
            {
                "url": reverse("com:alert_edit"),
                "slug": "alert",
                "name": _("Alert message"),
            }
        )
        tab_list.append(
            {
                "url": reverse("com:mailing_admin"),
                "slug": "mailings",
                "name": _("Mailing lists administration"),
            }
        )
        tab_list.append(
            {
                "url": reverse("com:poster_list"),
                "slug": "posters",
                "name": _("Posters list"),
            }
        )
        tab_list.append(
            {
                "url": reverse("com:screen_list"),
                "slug": "screens",
                "name": _("Screens list"),
            }
        )
        return tab_list


class IsComAdminMixin(View):
    def dispatch(self, request, *args, **kwargs):
        if not request.user.is_com_admin:
            raise PermissionDenied
        return super(IsComAdminMixin, self).dispatch(request, *args, **kwargs)


class ComEditView(ComTabsMixin, CanEditPropMixin, UpdateView):
    model = Sith
    template_name = "core/edit.jinja"

    def get_object(self, queryset=None):
        return Sith.objects.first()


class AlertMsgEditView(ComEditView):
    form_class = modelform_factory(
        Sith, fields=["alert_msg"], widgets={"alert_msg": MarkdownInput}
    )
    current_tab = "alert"
    success_url = reverse_lazy("com:alert_edit")


class InfoMsgEditView(ComEditView):
    form_class = modelform_factory(
        Sith, fields=["info_msg"], widgets={"info_msg": MarkdownInput}
    )
    current_tab = "info"
    success_url = reverse_lazy("com:info_edit")


class WeekmailDestinationEditView(ComEditView):
    fields = ["weekmail_destinations"]
    current_tab = "weekmail_destinations"
    success_url = reverse_lazy("com:weekmail_destinations")


# News


class NewsForm(forms.ModelForm):
    class Meta:
        model = News
        fields = ["type", "title", "club", "summary", "content", "author"]
        widgets = {
            "author": forms.HiddenInput,
            "type": forms.RadioSelect,
            "summary": MarkdownInput,
            "content": MarkdownInput,
        }

    start_date = TzAwareDateTimeField(label=_("Start date"), required=False)
    end_date = TzAwareDateTimeField(label=_("End date"), required=False)
    until = TzAwareDateTimeField(label=_("Until"), required=False)

    automoderation = forms.BooleanField(label=_("Automoderation"), required=False)

    def clean(self):
        self.cleaned_data = super(NewsForm, self).clean()
        if self.cleaned_data["type"] != "NOTICE":
            if not self.cleaned_data["start_date"]:
                self.add_error(
                    "start_date", ValidationError(_("This field is required."))
                )
            if not self.cleaned_data["end_date"]:
                self.add_error(
                    "end_date", ValidationError(_("This field is required."))
                )
            if (
                not self.has_error("start_date")
                and not self.has_error("end_date")
                and self.cleaned_data["start_date"] > self.cleaned_data["end_date"]
            ):
                self.add_error(
                    "end_date",
                    ValidationError(
                        _("You crazy? You can not finish an event before starting it.")
                    ),
                )
            if self.cleaned_data["type"] == "WEEKLY" and not self.cleaned_data["until"]:
                self.add_error("until", ValidationError(_("This field is required.")))
        return self.cleaned_data

    def save(self):
        ret = super(NewsForm, self).save()
        self.instance.dates.all().delete()
        if self.instance.type == "EVENT" or self.instance.type == "CALL":
            NewsDate(
                start_date=self.cleaned_data["start_date"],
                end_date=self.cleaned_data["end_date"],
                news=self.instance,
            ).save()
        elif self.instance.type == "WEEKLY":
            start_date = self.cleaned_data["start_date"]
            end_date = self.cleaned_data["end_date"]
            while start_date <= self.cleaned_data["until"]:
                NewsDate(
                    start_date=start_date, end_date=end_date, news=self.instance
                ).save()
                start_date += timedelta(days=7)
                end_date += timedelta(days=7)
        return ret


class NewsEditView(CanEditMixin, UpdateView):
    model = News
    form_class = NewsForm
    template_name = "com/news_edit.jinja"
    pk_url_kwarg = "news_id"

    def get_initial(self):
        init = {}
        try:
            init["start_date"] = (
                self.object.dates.order_by("id")
                .first()
                .start_date.strftime("%Y-%m-%d %H:%M:%S")
            )
        except:
            pass
        try:
            init["end_date"] = (
                self.object.dates.order_by("id")
                .first()
                .end_date.strftime("%Y-%m-%d %H:%M:%S")
            )
        except:
            pass
        return init

    def post(self, request, *args, **kwargs):
        form = self.get_form()
        if form.is_valid() and "preview" not in request.POST.keys():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)

    def form_valid(self, form):
        self.object = form.save()
        if form.cleaned_data["automoderation"] and self.request.user.is_com_admin:
            self.object.moderator = self.request.user
            self.object.is_moderated = True
            self.object.save()
        else:
            self.object.is_moderated = False
            self.object.save()
            for u in (
                RealGroup.objects.filter(id=settings.SITH_GROUP_COM_ADMIN_ID)
                .first()
                .users.all()
            ):
                if not u.notifications.filter(
                    type="NEWS_MODERATION", viewed=False
                ).exists():
                    Notification(
                        user=u,
                        url=reverse(
                            "com:news_detail", kwargs={"news_id": self.object.id}
                        ),
                        type="NEWS_MODERATION",
                    ).save()
        return super(NewsEditView, self).form_valid(form)


class NewsCreateView(CanCreateMixin, CreateView):
    model = News
    form_class = NewsForm
    template_name = "com/news_edit.jinja"

    def get_initial(self):
        init = {"author": self.request.user}
        try:
            init["club"] = Club.objects.filter(id=self.request.GET["club"]).first()
        except:
            pass
        return init

    def post(self, request, *args, **kwargs):
        form = self.get_form()
        if form.is_valid() and "preview" not in request.POST.keys():
            return self.form_valid(form)
        else:
            self.object = form.instance
            return self.form_invalid(form)

    def form_valid(self, form):
        self.object = form.save()
        if form.cleaned_data["automoderation"] and self.request.user.is_com_admin:
            self.object.moderator = self.request.user
            self.object.is_moderated = True
            self.object.save()
        else:
            for u in (
                RealGroup.objects.filter(id=settings.SITH_GROUP_COM_ADMIN_ID)
                .first()
                .users.all()
            ):
                if not u.notifications.filter(
                    type="NEWS_MODERATION", viewed=False
                ).exists():
                    Notification(
                        user=u,
                        url=reverse("com:news_admin_list"),
                        type="NEWS_MODERATION",
                    ).save()
        return super(NewsCreateView, self).form_valid(form)


class NewsDeleteView(CanEditMixin, DeleteView):
    model = News
    pk_url_kwarg = "news_id"
    template_name = "core/delete_confirm.jinja"
    success_url = reverse_lazy("com:news_admin_list")


class NewsModerateView(CanEditMixin, SingleObjectMixin):
    model = News
    pk_url_kwarg = "news_id"

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        if "remove" in request.GET.keys():
            self.object.is_moderated = False
        else:
            self.object.is_moderated = True
        self.object.moderator = request.user
        self.object.save()
        if "next" in self.request.GET.keys():
            return redirect(self.request.GET["next"])
        return redirect("com:news_admin_list")


class NewsAdminListView(CanEditMixin, ListView):
    model = News
    template_name = "com/news_admin_list.jinja"
    queryset = News.objects.all()


class NewsListView(CanViewMixin, ListView):
    model = News
    template_name = "com/news_list.jinja"
    queryset = News.objects.filter(is_moderated=True)

    def get_context_data(self, **kwargs):
        kwargs = super(NewsListView, self).get_context_data(**kwargs)
        kwargs["NewsDate"] = NewsDate
        kwargs["timedelta"] = timedelta
        kwargs["birthdays"] = (
            User.objects.filter(
                date_of_birth__month=timezone.now().month,
                date_of_birth__day=timezone.now().day,
            )
            .filter(role__in=["STUDENT", "FORMER STUDENT"])
            .order_by("-date_of_birth")
        )
        return kwargs


class NewsDetailView(CanViewMixin, DetailView):
    model = News
    template_name = "com/news_detail.jinja"
    pk_url_kwarg = "news_id"


# Weekmail


class WeekmailPreviewView(ComTabsMixin, QuickNotifMixin, CanEditPropMixin, DetailView):
    model = Weekmail
    template_name = "com/weekmail_preview.jinja"
    success_url = reverse_lazy("com:weekmail")
    current_tab = "weekmail"

    def dispatch(self, request, *args, **kwargs):
        self.bad_recipients = []
        return super(WeekmailPreviewView, self).dispatch(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        if request.POST["send"] == "validate":
            try:
                self.object.send()
                return HttpResponseRedirect(
                    reverse("com:weekmail") + "?qn_weekmail_send_success"
                )
            except SMTPRecipientsRefused as e:
                self.bad_recipients = e.recipients
        elif request.POST["send"] == "clean":
            try:
                self.object.send()  # This should fail
            except SMTPRecipientsRefused as e:
                users = User.objects.filter(email__in=e.recipients.keys())
                for u in users:
                    u.preferences.receive_weekmail = False
                    u.preferences.save()
                self.quick_notif_list += ["qn_success"]
        return super(WeekmailPreviewView, self).get(request, *args, **kwargs)

    def get_object(self, queryset=None):
        return self.model.objects.filter(sent=False).order_by("-id").first()

    def get_context_data(self, **kwargs):
        """Add rendered weekmail"""
        kwargs = super(WeekmailPreviewView, self).get_context_data(**kwargs)
        kwargs["weekmail_rendered"] = self.object.render_html()
        kwargs["bad_recipients"] = self.bad_recipients
        return kwargs


class WeekmailEditView(ComTabsMixin, QuickNotifMixin, CanEditPropMixin, UpdateView):
    model = Weekmail
    template_name = "com/weekmail.jinja"
    form_class = modelform_factory(
        Weekmail,
        fields=["title", "intro", "joke", "protip", "conclusion"],
        help_texts={"title": _("Delete and save to regenerate")},
        widgets={
            "intro": MarkdownInput,
            "joke": MarkdownInput,
            "protip": MarkdownInput,
            "conclusion": MarkdownInput,
        },
    )
    success_url = reverse_lazy("com:weekmail")
    current_tab = "weekmail"

    def get_object(self, queryset=None):
        weekmail = self.model.objects.filter(sent=False).order_by("-id").first()
        if not weekmail.title:
            now = timezone.now()
            weekmail.title = _("Weekmail of the ") + (
                now + timedelta(days=6 - now.weekday())
            ).strftime("%d/%m/%Y")
            weekmail.save()
        return weekmail

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        if "up_article" in request.GET.keys():
            art = get_object_or_404(
                WeekmailArticle, id=request.GET["up_article"], weekmail=self.object
            )
            prev_art = (
                self.object.articles.order_by("rank").filter(rank__lt=art.rank).last()
            )
            if prev_art:
                art.rank, prev_art.rank = prev_art.rank, art.rank
                art.save()
                prev_art.save()
                self.quick_notif_list += ["qn_success"]
        if "down_article" in request.GET.keys():
            art = get_object_or_404(
                WeekmailArticle, id=request.GET["down_article"], weekmail=self.object
            )
            next_art = (
                self.object.articles.order_by("rank").filter(rank__gt=art.rank).first()
            )
            if next_art:
                art.rank, next_art.rank = next_art.rank, art.rank
                art.save()
                next_art.save()
                self.quick_notif_list += ["qn_success"]
        if "add_article" in request.GET.keys():
            art = get_object_or_404(
                WeekmailArticle, id=request.GET["add_article"], weekmail=None
            )
            art.weekmail = self.object
            art.rank = self.object.articles.aggregate(Max("rank"))["rank__max"] or 0
            art.rank += 1
            art.save()
            self.quick_notif_list += ["qn_success"]
        if "del_article" in request.GET.keys():
            art = get_object_or_404(
                WeekmailArticle, id=request.GET["del_article"], weekmail=self.object
            )
            art.weekmail = None
            art.rank = -1
            art.save()
            self.quick_notif_list += ["qn_success"]
        return super(WeekmailEditView, self).get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        """Add orphan articles"""
        kwargs = super(WeekmailEditView, self).get_context_data(**kwargs)
        kwargs["orphans"] = WeekmailArticle.objects.filter(weekmail=None)
        return kwargs


class WeekmailArticleEditView(
    ComTabsMixin, QuickNotifMixin, CanEditPropMixin, UpdateView
):
    """Edit an article"""

    model = WeekmailArticle
    form_class = modelform_factory(
        WeekmailArticle,
        fields=["title", "club", "content"],
        widgets={"content": MarkdownInput},
    )
    pk_url_kwarg = "article_id"
    template_name = "core/edit.jinja"
    success_url = reverse_lazy("com:weekmail")
    quick_notif_url_arg = "qn_weekmail_article_edit"
    current_tab = "weekmail"


class WeekmailArticleCreateView(QuickNotifMixin, CreateView):
    """Post an article"""

    model = WeekmailArticle
    form_class = modelform_factory(
        WeekmailArticle,
        fields=["title", "club", "content"],
        widgets={"content": MarkdownInput},
    )
    template_name = "core/create.jinja"
    success_url = reverse_lazy("core:user_tools")
    quick_notif_url_arg = "qn_weekmail_new_article"

    def get_initial(self):
        init = {}
        try:
            init["club"] = Club.objects.filter(id=self.request.GET["club"]).first()
        except:
            pass
        return init

    def post(self, request, *args, **kwargs):
        form = self.get_form()
        self.object = form.instance
        form.is_valid()  #  Valid a first time to populate club field
        try:
            m = form.instance.club.get_membership_for(request.user)
            if m.role <= settings.SITH_MAXIMUM_FREE_ROLE:
                raise
        except:
            form.add_error(
                "club",
                ValidationError(
                    _(
                        "You must be a board member of the selected club to post in the Weekmail."
                    )
                ),
            )
        if form.is_valid() and not "preview" in request.POST.keys():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super(WeekmailArticleCreateView, self).form_valid(form)


class WeekmailArticleDeleteView(CanEditPropMixin, DeleteView):
    """Delete an article"""

    model = WeekmailArticle
    template_name = "core/delete_confirm.jinja"
    success_url = reverse_lazy("com:weekmail")
    pk_url_kwarg = "article_id"


class MailingListAdminView(ComTabsMixin, ListView):
    template_name = "com/mailing_admin.jinja"
    model = Mailing
    current_tab = "mailings"

    def dispatch(self, request, *args, **kwargs):
        if not (request.user.is_com_admin or request.user.is_root):
            raise PermissionDenied
        return super(MailingListAdminView, self).dispatch(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        kwargs = super(MailingListAdminView, self).get_context_data(**kwargs)
        kwargs["moderated"] = self.get_queryset().filter(is_moderated=True).all()
        kwargs["unmoderated"] = self.get_queryset().filter(is_moderated=False).all()
        kwargs["has_moderated"] = len(kwargs["moderated"]) > 0
        kwargs["has_unmoderated"] = len(kwargs["unmoderated"]) > 0
        return kwargs


class MailingModerateView(View):
    def get(self, request, *args, **kwargs):
        mailing = get_object_or_404(Mailing, pk=kwargs["mailing_id"])
        if mailing.can_moderate(request.user):
            mailing.is_moderated = True
            mailing.moderator = request.user
            mailing.save()
            return redirect("com:mailing_admin")

        raise PermissionDenied


class PosterListBaseView(ListView):
    """List communication posters"""

    current_tab = "posters"
    model = Poster
    template_name = "com/poster_list.jinja"

    def dispatch(self, request, *args, **kwargs):
        club_id = kwargs.pop("club_id", None)
        self.club = None
        if club_id:
            self.club = get_object_or_404(Club, pk=club_id)
        return super(PosterListBaseView, self).dispatch(request, *args, **kwargs)

    def get_queryset(self):
        if self.request.user.is_com_admin:
            return Poster.objects.all().order_by("-date_begin")
        else:
            return Poster.objects.filter(club=self.club.id)

    def get_context_data(self, **kwargs):
        kwargs = super(PosterListBaseView, self).get_context_data(**kwargs)
        if not self.request.user.is_com_admin:
            kwargs["club"] = self.club
        return kwargs


class PosterCreateBaseView(CreateView):
    """Create communication poster"""

    current_tab = "posters"
    form_class = PosterForm
    template_name = "core/create.jinja"

    def get_queryset(self):
        return Poster.objects.all()

    def dispatch(self, request, *args, **kwargs):
        if "club_id" in kwargs:
            self.club = get_object_or_404(Club, pk=kwargs["club_id"])
        return super(PosterCreateBaseView, self).dispatch(request, *args, **kwargs)

    def get_form_kwargs(self):
        kwargs = super(PosterCreateBaseView, self).get_form_kwargs()
        kwargs.update({"user": self.request.user})
        return kwargs

    def get_context_data(self, **kwargs):
        kwargs = super(PosterCreateBaseView, self).get_context_data(**kwargs)
        if not self.request.user.is_com_admin:
            kwargs["club"] = self.club
        return kwargs

    def form_valid(self, form):
        if self.request.user.is_com_admin:
            form.instance.is_moderated = True
        return super(PosterCreateBaseView, self).form_valid(form)


class PosterEditBaseView(UpdateView):
    """Edit communication poster"""

    pk_url_kwarg = "poster_id"
    current_tab = "posters"
    form_class = PosterForm
    template_name = "com/poster_edit.jinja"

    def get_initial(self):
        init = {}
        try:
            init["date_begin"] = self.object.date_begin.strftime("%Y-%m-%d %H:%M:%S")
        except Exception:
            pass
        try:
            init["date_end"] = self.object.date_end.strftime("%Y-%m-%d %H:%M:%S")
        except Exception:
            pass
        return init

    def dispatch(self, request, *args, **kwargs):
        if "club_id" in kwargs and kwargs["club_id"]:
            try:
                self.club = Club.objects.get(pk=kwargs["club_id"])
            except Club.DoesNotExist:
                raise PermissionDenied
        return super(PosterEditBaseView, self).dispatch(request, *args, **kwargs)

    def get_queryset(self):
        return Poster.objects.all()

    def get_form_kwargs(self):
        kwargs = super(PosterEditBaseView, self).get_form_kwargs()
        kwargs.update({"user": self.request.user})
        return kwargs

    def get_context_data(self, **kwargs):
        kwargs = super(PosterEditBaseView, self).get_context_data(**kwargs)
        if hasattr(self, "club"):
            kwargs["club"] = self.club
        return kwargs

    def form_valid(self, form):
        if self.request.user.is_com_admin:
            form.instance.is_moderated = False
        return super(PosterEditBaseView, self).form_valid(form)


class PosterDeleteBaseView(DeleteView):
    """Edit communication poster"""

    pk_url_kwarg = "poster_id"
    current_tab = "posters"
    model = Poster
    template_name = "core/delete_confirm.jinja"

    def dispatch(self, request, *args, **kwargs):
        if "club_id" in kwargs and kwargs["club_id"]:
            try:
                self.club = Club.objects.get(pk=kwargs["club_id"])
            except Club.DoesNotExist:
                raise PermissionDenied
        return super(PosterDeleteBaseView, self).dispatch(request, *args, **kwargs)


class PosterListView(IsComAdminMixin, ComTabsMixin, PosterListBaseView):
    """List communication posters"""

    def get_context_data(self, **kwargs):
        kwargs = super(PosterListView, self).get_context_data(**kwargs)
        kwargs["app"] = "com"
        return kwargs


class PosterCreateView(IsComAdminMixin, ComTabsMixin, PosterCreateBaseView):
    """Create communication poster"""

    success_url = reverse_lazy("com:poster_list")

    def get_context_data(self, **kwargs):
        kwargs = super(PosterCreateView, self).get_context_data(**kwargs)
        kwargs["app"] = "com"
        return kwargs


class PosterEditView(IsComAdminMixin, ComTabsMixin, PosterEditBaseView):
    """Edit communication poster"""

    success_url = reverse_lazy("com:poster_list")

    def get_context_data(self, **kwargs):
        kwargs = super(PosterEditView, self).get_context_data(**kwargs)
        kwargs["app"] = "com"
        return kwargs


class PosterDeleteView(IsComAdminMixin, ComTabsMixin, PosterDeleteBaseView):
    """Delete communication poster"""

    success_url = reverse_lazy("com:poster_list")


class PosterModerateListView(IsComAdminMixin, ComTabsMixin, ListView):
    """Moderate list communication poster"""

    current_tab = "posters"
    model = Poster
    template_name = "com/poster_moderate.jinja"
    queryset = Poster.objects.filter(is_moderated=False).all()

    def get_context_data(self, **kwargs):
        kwargs = super(PosterModerateListView, self).get_context_data(**kwargs)
        kwargs["app"] = "com"
        return kwargs


class PosterModerateView(IsComAdminMixin, ComTabsMixin, View):
    """Moderate communication poster"""

    def get(self, request, *args, **kwargs):
        obj = get_object_or_404(Poster, pk=kwargs["object_id"])
        if obj.can_be_moderated_by(request.user):
            obj.is_moderated = True
            obj.moderator = request.user
            obj.save()
            return redirect("com:poster_moderate_list")
        raise PermissionDenied

    def get_context_data(self, **kwargs):
        kwargs = super(PosterModerateListView, self).get_context_data(**kwargs)
        kwargs["app"] = "com"
        return kwargs


class ScreenListView(IsComAdminMixin, ComTabsMixin, ListView):
    """List communication screens"""

    current_tab = "screens"
    model = Screen
    template_name = "com/screen_list.jinja"


class ScreenSlideshowView(DetailView):
    """Slideshow of actives posters"""

    pk_url_kwarg = "screen_id"
    model = Screen
    template_name = "com/screen_slideshow.jinja"

    def get_context_data(self, **kwargs):
        kwargs = super(ScreenSlideshowView, self).get_context_data(**kwargs)
        kwargs["posters"] = self.object.active_posters()
        return kwargs


class ScreenCreateView(IsComAdminMixin, ComTabsMixin, CreateView):
    """Create communication screen"""

    current_tab = "screens"
    model = Screen
    fields = ["name"]
    template_name = "core/create.jinja"
    success_url = reverse_lazy("com:screen_list")


class ScreenEditView(IsComAdminMixin, ComTabsMixin, UpdateView):
    """Edit communication screen"""

    pk_url_kwarg = "screen_id"
    current_tab = "screens"
    model = Screen
    fields = ["name"]
    template_name = "com/screen_edit.jinja"
    success_url = reverse_lazy("com:screen_list")


class ScreenDeleteView(IsComAdminMixin, ComTabsMixin, DeleteView):
    """Delete communication screen"""

    pk_url_kwarg = "screen_id"
    current_tab = "screens"
    model = Screen
    template_name = "core/delete_confirm.jinja"
    success_url = reverse_lazy("com:screen_list")