from typing import Any, Dict from django.db.models import QuerySet from django.http import FileResponse, HttpRequest from django.urls import reverse_lazy from django.utils.translation import gettext as _ from django.views import View from django.views.generic.detail import SingleObjectMixin from django.views.generic.list import ListView from guardian.shortcuts import get_objects_for_user from rules.contrib.views import PermissionRequiredMixin from aleksis.core.mixins import AdvancedCreateView, AdvancedDeleteView, AdvancedEditView from .forms import PosterGroupForm, PosterUploadForm from .models import Poster, PosterGroup class PosterGroupListView(PermissionRequiredMixin, ListView): """Show a list of all poster groups.""" template_name = "resint/group/list.html" model = PosterGroup permission_required = "resint.view_postergroups_rule" def get_queryset(self) -> QuerySet: qs = super().get_queryset() if self.request.user.has_perm("resint.view_postergroup"): return qs return get_objects_for_user(self.request.user, "resint.view_postergroup", qs) class PosterGroupCreateView(PermissionRequiredMixin, AdvancedCreateView): """Create a new poster group.""" model = PosterGroup success_url = reverse_lazy("poster_group_list") template_name = "resint/group/create.html" success_message = _("The poster group has been saved.") form_class = PosterGroupForm permission_required = "resint.create_postergroup_rule" class PosterGroupEditView(PermissionRequiredMixin, AdvancedEditView): """Edit an existing poster group.""" model = PosterGroup success_url = reverse_lazy("poster_group_list") template_name = "resint/group/edit.html" success_message = _("The poster group has been saved.") form_class = PosterGroupForm permission_required = "resint.edit_postergroup_rule" class PosterGroupDeleteView(PermissionRequiredMixin, AdvancedDeleteView): """Delete a poster group.""" model = PosterGroup success_url = reverse_lazy("poster_group_list") success_message = _("The poster group has been deleted.") template_name = "core/pages/delete.html" permission_required = "resint.delete_postergroup_rule" class PosterListView(PermissionRequiredMixin, ListView): """Show a list of all uploaded posters.""" template_name = "resint/poster/list.html" model = Poster permission_required = "resint.view_posters_rule" def get_queryset(self) -> QuerySet: qs = Poster.objects.all().order_by("-year", "-week") if self.request.user.has_perm("resint.view_poster"): return qs allowed_groups = get_objects_for_user( self.request.user, "resint.view_poster_of_group", PosterGroup ) posters = get_objects_for_user(self.request.user, "resint.view_poster", qs) return qs.filter(group__in=allowed_groups) | posters def get_context_data(self, **kwargs: Any) -> Dict[str, Any]: context = super().get_context_data(**kwargs) context["poster_groups"] = PosterGroup.objects.all().order_by("name") return context class PosterUploadView(PermissionRequiredMixin, AdvancedCreateView): """Upload a new poster.""" model = Poster success_url = reverse_lazy("poster_index") template_name = "resint/poster/upload.html" success_message = _("The poster has been uploaded.") form_class = PosterUploadForm permission_required = "resint.upload_poster_rule" class PosterDeleteView(PermissionRequiredMixin, AdvancedDeleteView): """Delete an uploaded poster.""" model = Poster success_url = reverse_lazy("poster_index") success_message = _("The poster has been deleted.") template_name = "core/pages/delete.html" permission_required = "resint.delete_poster_rule" class PosterCurrentView(PermissionRequiredMixin, SingleObjectMixin, View): """Show the poster which is currently valid.""" model = PosterGroup permission_required = "resint.view_poster_pdf" def get(self, request: HttpRequest, *args: Any, **kwargs: Any) -> FileResponse: group = self.get_object() current_poster = group.current_poster file = current_poster.pdf if current_poster else group.default_pdf return FileResponse(file, content_type="application/pdf")