from oauth2_provider.views.mixins import ClientProtectedResourceMixin
from rest_framework import status, mixins
from rest_framework.generics import (
    ListAPIView,
    RetrieveAPIView,
    get_object_or_404,
    CreateAPIView,
    DestroyAPIView,
    UpdateAPIView,
)
from rest_framework.views import APIView
from rest_framework.response import Response

from marietje.api.openapi import CustomAutoSchema
from marietje.api.permissions import IsAuthenticatedOrTokenHasScopeForMethod
from django.http import Http404

from queues.api.v1.serializers import (
    PlaylistSerializer,
    QueueSerializer,
    PlaylistSongSerializer,
    QueueCommandSerializer,
)
from queues.exceptions import RequestException
from queues.models import Playlist, PlaylistSong, QueueCommand, Queue
from queues.services import get_user_or_default_queue
from songs.counters import request_counter
from songs.models import Song


class PlaylistListAPIView(ListAPIView):
    serializer_class = PlaylistSerializer
    queryset = Playlist.objects.all()
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"GET": ["read"]}


class PlaylistRetrieveAPIView(RetrieveAPIView):
    serializer_class = PlaylistSerializer
    queryset = Playlist.objects.all()
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"GET": ["read"]}


class QueueAPIView(APIView):
    serializer_class = QueueSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"GET": ["read"]}
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def get_object(self):
        queue = get_user_or_default_queue(self.request)
        if queue is None:
            raise Http404()
        return queue

    def get(self, request, **kwargs):
        queue = self.get_object()
        return Response(status=200, data=self.serializer_class(queue).data)


class QueueUpdateAPIView(ClientProtectedResourceMixin, UpdateAPIView):
    serializer_class = QueueSerializer
    queryset = Queue.objects.all()
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"PUT": ["write"], "PATCH": ["write"]}
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def put(self, request, **kwargs):
        queue = self.get_object()
        if queue.oauth_client is None or queue.oauth_client != request.auth.application:
            return Response(
                {"detail": "Unauthorized"},
                status=status.HTTP_401_UNAUTHORIZED,
            )
        else:
            return super(QueueUpdateAPIView, self).put(request, **kwargs)

    def patch(self, request, **kwargs):
        queue = self.get_object()
        if queue.oauth_client is None or queue.oauth_client != request.auth.application:
            return Response(
                {"detail": "Unauthorized"},
                status=status.HTTP_401_UNAUTHORIZED,
            )
        else:
            return super(QueueUpdateAPIView, self).patch(request, **kwargs)


class QueueSkipAPIView(APIView):
    serializer_class = QueueSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "POST": ["write"],
    }
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def post(self, request, **kwargs):
        queue = get_user_or_default_queue(request)
        if queue is None:
            return Response(status=404)

        playlist_song = queue.current_song()
        if request.user is not None:
            if playlist_song.user != request.user and not request.user.has_perm("queues.can_skip"):
                return Response(status=403)
        elif request.auth is not None:
            if queue.oauth_client is None or request.auth.application != queue.oauth_client:
                return Response(status=403)
        else:
            return Response(status=403)

        playlist_song.state = 2
        playlist_song.save()

        return Response(status=200, data=QueueSerializer(queue).data)


class PlaylistSongMoveDownAPIView(APIView):
    serializer_class = PlaylistSongSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "PATCH": ["write"],
    }
    schema = CustomAutoSchema(response_schema={"$ref": "#/components/schemas/PlaylistSong"})

    def patch(self, request, **kwargs):
        playlist_song_id = kwargs.get("id")
        playlist_song = get_object_or_404(PlaylistSong, id=playlist_song_id)
        if (
            request.user is not None
            and playlist_song.user != request.user
            and not request.user.has_perm("queues.can_move")
        ):
            return Response(status=403)
        playlist_song.move_down()
        return Response(status=200, data=self.serializer_class(playlist_song).data)


class PlaylistSongCancelAPIView(DestroyAPIView):
    serializer_class = PlaylistSongSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "DELETE": ["write"],
    }

    def delete(self, request, **kwargs):
        playlist_song_id = kwargs.get("id")
        playlist_song = get_object_or_404(PlaylistSong, id=playlist_song_id)
        if (
            request.user is not None
            and playlist_song.user != request.user
            and not request.user.has_perm("queues.can_cancel")
        ):
            return Response(status=403)
        playlist_song.delete()
        return Response(status=200, data=self.serializer_class(playlist_song).data)


class QueueRequestAPIView(CreateAPIView):
    serializer_class = PlaylistSongSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "POST": ["write"],
    }
    schema = CustomAutoSchema(
        request_schema={
            "type": "object",
            "properties": {
                "song": {"type": "int", "example": 1},
            },
        }
    )

    def post(self, request, **kwargs):
        queue = get_user_or_default_queue(request)
        if queue is None:
            return Response(status=404)
        song_id = request.data.get("song", None)
        if song_id is None:
            return Response(status=400, data={"success": False, "errorMessage": "Song ID not set."})

        song = get_object_or_404(Song, id=song_id, deleted=False)

        try:
            playlist_song = queue.request(song, request.user)
        except RequestException as e:
            return Response(data={"success": False, "errorMessage": str(e)})

        request_counter.labels(queue=queue.name).inc()
        return Response(status=200, data=self.serializer_class(playlist_song).data)


class QueueVolumeDownAPIView(APIView):
    serializer_class = QueueSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "POST": ["write"],
    }
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def post(self, request, **kwargs):
        queue = get_user_or_default_queue(request)
        if queue is None:
            return Response(status=404)
        if request.user is not None and not request.user.has_perm("queues.can_control_volume"):
            return Response(status=403)
        QueueCommand.objects.create(queue=queue, command="volume_down")
        return Response(status=200, data=self.serializer_class(queue).data)


class QueueVolumeUpAPIView(APIView):
    serializer_class = QueueSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "POST": ["write"],
    }
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def post(self, request, **kwargs):
        queue = get_user_or_default_queue(request)
        if queue is None:
            return Response(status=404)
        if request.user is not None and not request.user.has_perm("queues.can_control_volume"):
            return Response(status=403)
        QueueCommand.objects.create(queue=queue, command="volume_up")
        return Response(status=200, data=self.serializer_class(queue).data)


class QueueMuteAPIView(APIView):
    serializer_class = QueueSerializer
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {
        "POST": ["write"],
    }
    schema = CustomAutoSchema(
        response_schema={
            "type": "object",
            "properties": {
                "id": {"type": "int", "example": 1},
                "name": {"type": "string", "example": "string"},
                "playlist": {"type": "int", "example": 1},
                "random_playlist": {"type": "int", "example": 1},
                "current_song": {"$ref": "#/components/schemas/PlaylistSong"},
                "queue": {"type": "array", "items": {"$ref": "#/components/schemas/PlaylistSong"}},
                "started_at": {"type": "string", "format": "date-time", "nullable": True},
            },
        }
    )

    def post(self, request, **kwargs):
        queue = get_user_or_default_queue(request)
        if queue is None:
            return Response(status=404)
        if request.user is not None and not request.user.has_perm("queues.can_control_volume"):
            return Response(status=403)
        QueueCommand.objects.create(queue=queue, command="mute")
        return Response(status=200, data=self.serializer_class(queue).data)


class QueueCommandListAPIView(ClientProtectedResourceMixin, ListAPIView):
    serializer_class = QueueCommandSerializer
    queryset = QueueCommand.objects.all()
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"GET": ["read"]}

    def get_queryset(self):
        queue = get_object_or_404(Queue, pk=self.kwargs.get("pk"))
        self.queryset.filter(queue=queue)

    def get(self, request, **kwargs):
        queue = get_object_or_404(Queue, pk=kwargs.get("pk"))
        if queue.oauth_client is None or queue.oauth_client != request.auth.application:
            return Response(
                {"detail": "Unauthorized"},
                status=status.HTTP_401_UNAUTHORIZED,
            )
        else:
            return super(QueueCommandListAPIView, self).get(request, **kwargs)


class QueueCommandDestroyAPIView(ClientProtectedResourceMixin, DestroyAPIView):
    serializer_class = QueueCommandSerializer
    queryset = QueueCommand.objects.all()
    permission_classes = [IsAuthenticatedOrTokenHasScopeForMethod]
    required_scopes_for_method = {"DELETE": ["write"]}

    def delete(self, request, **kwargs):
        queue_command = self.get_object()
        if queue_command.queue.oauth_client is None or queue_command.queue.oauth_client != request.auth.application:
            return Response(
                {"detail": "Unauthorized"},
                status=status.HTTP_401_UNAUTHORIZED,
            )
        else:
            return super(QueueCommandDestroyAPIView, self).delete(request, **kwargs)