aircox/aircox_streamer/viewsets.py
2023-10-11 10:53:42 +02:00

149 lines
4.5 KiB
Python

from django.http import Http404
from django.shortcuts import get_object_or_404
from rest_framework import viewsets
from rest_framework.decorators import action
from rest_framework.exceptions import ValidationError
from rest_framework.permissions import IsAdminUser
from rest_framework.response import Response
from aircox.models import Sound
from . import controllers
from .serializers import (
PlaylistSerializer,
QueueSourceSerializer,
RequestSerializer,
SourceSerializer,
StreamerSerializer,
)
__all__ = [
"ControllerViewSet",
"RequestViewSet",
"StreamerViewSet",
"SourceViewSet",
"PlaylistSourceViewSet",
"QueueSourceViewSet",
]
class ControllerViewSet(viewsets.ViewSet):
permission_classes = (IsAdminUser,)
serializer_class = None
streamers = controllers.streamers
"""Streamers controller instance."""
streamer = None
"""User's Streamer instance."""
object = None
"""Object to serialize."""
def get_streamer(self, station_pk=None):
"""Get user's streamer."""
if station_pk is None:
station_pk = self.request.station.pk
self.streamers.fetch()
if station_pk not in self.streamers:
raise Http404("station not found")
return self.streamers[station_pk]
def get_serializer(self, **kwargs):
"""Get serializer instance."""
return self.serializer_class(self.object, **kwargs)
def serialize(self, obj, **kwargs):
"""Serializer controller data."""
self.object = obj
serializer = self.get_serializer(**kwargs)
return serializer.data
def dispatch(self, request, *args, station_pk=None, **kwargs):
self.streamer = self.get_streamer(station_pk)
return super().dispatch(request, *args, **kwargs)
class RequestViewSet(ControllerViewSet):
serializer_class = RequestSerializer
class StreamerViewSet(ControllerViewSet):
serializer_class = StreamerSerializer
def retrieve(self, request, pk=None):
return Response(self.serialize(self.streamer))
def list(self, request, pk=None):
return Response({"results": self.serialize(self.streamers.values(), many=True)})
def dispatch(self, request, *args, pk=None, **kwargs):
if pk is not None:
kwargs.setdefault("station_pk", pk)
self.streamer = self.get_streamer(request, **kwargs)
self.object = self.streamer
return super().dispatch(request, *args, **kwargs)
class SourceViewSet(ControllerViewSet):
serializer_class = SourceSerializer
model = controllers.Source
def get_sources(self):
return (s for s in self.streamer.sources if isinstance(s, self.model))
def get_source(self, pk):
source = next((source for source in self.get_sources() if source.id == pk), None)
if source is None:
raise Http404("source `%s` not found" % pk)
return source
def retrieve(self, request, pk=None):
source = self.get_source(pk)
return Response(self.serialize(source))
def list(self, request):
return Response({"results": self.serialize(self.get_sources(), many=True)})
def _run(self, pk, action):
source = self.object = self.get_source(pk)
action(source)
source.fetch()
return Response(self.serialize(source))
@action(detail=True, methods=["POST"])
def sync(self, request, pk):
return self._run(pk, lambda s: s.sync())
@action(detail=True, methods=["POST"])
def skip(self, request, pk):
return self._run(pk, lambda s: s.skip())
@action(detail=True, methods=["POST"])
def restart(self, request, pk):
return self._run(pk, lambda s: s.restart())
@action(detail=True, methods=["POST"])
def seek(self, request, pk):
count = request.POST["seek"]
return self._run(pk, lambda s: s.seek(count))
class PlaylistSourceViewSet(SourceViewSet):
serializer_class = PlaylistSerializer
model = controllers.PlaylistSource
class QueueSourceViewSet(SourceViewSet):
serializer_class = QueueSourceSerializer
model = controllers.QueueSource
def get_sound_queryset(self, request):
return Sound.objects.station(request.station).archive()
@action(detail=True, methods=["POST"])
def push(self, request, pk):
if not request.data.get("sound_id"):
raise ValidationError('missing "sound_id" POST data')
sound = get_object_or_404(self.get_sound_queryset(request), pk=request.data["sound_id"])
return self._run(pk, lambda s: s.push(sound.file.path) if sound.file.path else None)