moviewyrm/bookwyrm/views/feed.py

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""" non-interactive pages """
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from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.db.models import Q
from django.http import HttpResponseNotFound, Http404
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from django.template.response import TemplateResponse
from django.utils import timezone
from django.utils.decorators import method_decorator
from django.views import View
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from bookwyrm import activitystreams, forms, models
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from bookwyrm.activitypub import ActivitypubResponse
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from bookwyrm.settings import PAGE_LENGTH, STREAMS
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from bookwyrm.suggested_users import suggested_users
from .helpers import get_user_from_username, privacy_filter
from .helpers import is_api_request, is_bookwyrm_request
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# pylint: disable= no-self-use
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@method_decorator(login_required, name="dispatch")
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class Feed(View):
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"""activity stream"""
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def get(self, request, tab):
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"""user's homepage with activity feed"""
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if not tab in STREAMS:
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tab = "home"
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activities = activitystreams.streams[tab].get_activity_stream(request.user)
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paginated = Paginator(activities, PAGE_LENGTH)
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suggestions = suggested_users.get_suggestions(request.user)
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data = {
**feed_page_data(request.user),
**{
"user": request.user,
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"activities": paginated.get_page(request.GET.get("page")),
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"suggested_users": suggestions,
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"tab": tab,
"goal_form": forms.GoalForm(),
"path": "/%s" % tab,
},
}
return TemplateResponse(request, "feed/feed.html", data)
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@method_decorator(login_required, name="dispatch")
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class DirectMessage(View):
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"""dm view"""
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def get(self, request, username=None):
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"""like a feed but for dms only"""
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# remove fancy subclasses of status, keep just good ol' notes
queryset = models.Status.objects.filter(
review__isnull=True,
comment__isnull=True,
quotation__isnull=True,
generatednote__isnull=True,
)
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user = None
if username:
try:
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user = get_user_from_username(request.user, username)
except Http404:
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pass
if user:
queryset = queryset.filter(Q(user=user) | Q(mention_users=user))
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activities = privacy_filter(
request.user, queryset, privacy_levels=["direct"]
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).order_by("-published_date")
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paginated = Paginator(activities, PAGE_LENGTH)
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data = {
**feed_page_data(request.user),
**{
"user": request.user,
"partner": user,
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"activities": paginated.get_page(request.GET.get("page")),
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"path": "/direct-messages",
},
}
return TemplateResponse(request, "feed/direct_messages.html", data)
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class Status(View):
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"""get posting"""
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def get(self, request, username, status_id):
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"""display a particular status (and replies, etc)"""
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try:
user = get_user_from_username(request.user, username)
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status = models.Status.objects.select_subclasses().get(
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id=status_id, deleted=False
)
except (ValueError, models.Status.DoesNotExist):
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return HttpResponseNotFound()
# the url should have the poster's username in it
if user != status.user:
return HttpResponseNotFound()
# make sure the user is authorized to see the status
if not status.visible_to_user(request.user):
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return HttpResponseNotFound()
if is_api_request(request):
return ActivitypubResponse(
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status.to_activity(pure=not is_bookwyrm_request(request))
)
data = {
**feed_page_data(request.user),
**{
"status": status,
},
}
return TemplateResponse(request, "feed/status.html", data)
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class Replies(View):
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"""replies page (a json view of status)"""
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def get(self, request, username, status_id):
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"""ordered collection of replies to a status"""
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# the html view is the same as Status
if not is_api_request(request):
status_view = Status.as_view()
return status_view(request, username, status_id)
# the json view is different than Status
status = models.Status.objects.get(id=status_id)
if status.user.localname != username:
return HttpResponseNotFound()
return ActivitypubResponse(status.to_replies(**request.GET))
def feed_page_data(user):
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"""info we need for every feed page"""
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if not user.is_authenticated:
return {}
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goal = models.AnnualGoal.objects.filter(user=user, year=timezone.now().year).first()
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return {
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"suggested_books": get_suggested_books(user),
"goal": goal,
"goal_form": forms.GoalForm(),
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}
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def get_suggested_books(user, max_books=5):
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"""helper to get a user's recent books"""
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book_count = 0
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preset_shelves = [("reading", max_books), ("read", 2), ("to-read", max_books)]
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suggested_books = []
for (preset, shelf_max) in preset_shelves:
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limit = (
shelf_max
if shelf_max < (max_books - book_count)
else max_books - book_count
)
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shelf = user.shelf_set.get(identifier=preset)
if not shelf.books.exists():
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continue
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shelf_preview = {
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"name": shelf.name,
"identifier": shelf.identifier,
"books": shelf.books.order_by("shelfbook").prefetch_related("authors")[
:limit
],
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}
suggested_books.append(shelf_preview)
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book_count += len(shelf_preview["books"])
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return suggested_books