from django.shortcuts import render
from rest_framework import viewsets, filters
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework.pagination import PageNumberPagination

from api.logger.mixins import LoggingMixin
from mixins.filtrado_organizacion import OrganizacionFiltradaMixin, ProcesosPorOrganizacionMixin
from .models import Task
from .serializers import TaskSerializer
from .filters import TaskFilter
from rest_framework.permissions import IsAuthenticated

# Create your views here.
from core.permissions import (
    IsSameOrganization, 
    IsSameOrganizationDeveloper,
    IsSameOrganizationAndAdmin,
    IsSuperUser
)

class TaskPagination(PageNumberPagination):
    page_size = 10
    page_size_query_param = 'page_size'
    max_page_size = 100

class TaskViewSet(LoggingMixin,viewsets.ModelViewSet,OrganizacionFiltradaMixin):
    permission_classes = [IsAuthenticated &  (IsSameOrganization | IsSameOrganizationAndAdmin | IsSameOrganizationDeveloper | IsSuperUser)]
    queryset = Task.objects.select_related('pedimento', 'servicio').all()
    serializer_class = TaskSerializer
    filter_backends = [DjangoFilterBackend, filters.OrderingFilter]
    filterset_class = TaskFilter
    pagination_class = TaskPagination
    ordering_fields = ['timestamp']
    ordering = ['-timestamp']  # ordenamiento por defecto, más reciente primero
    
    my_tags = ['tasks']

    def get_queryset(self):

        """
        Filtra las tareas según la organización del usuario.
        Superusuarios pueden ver todas las tareas.
        """
        queryset = self.get_queryset_filtrado_por_organizacion() # Tambien filtra por importador
        # if user.is_superuser:
        #     return self.queryset
        #     # return self.queryset.filter(organizacion_id=user.organizacion.id)
        # else:
        #     return self.queryset.filter(organizacion_id=user.organizacion.id)
        return queryset