"""
ViewSets for Automation Models
Unified API Standard v1.0 compliant
"""
from rest_framework import viewsets, status
from rest_framework.decorators import action
from rest_framework.response import Response
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import filters
from drf_spectacular.utils import extend_schema, extend_schema_view
from igny8_core.api.base import SiteSectorModelViewSet, AccountModelViewSet
from igny8_core.api.pagination import CustomPageNumberPagination
from igny8_core.api.response import success_response, error_response
from igny8_core.api.throttles import DebugScopedRateThrottle
from igny8_core.api.permissions import IsAuthenticatedAndActive, IsViewerOrAbove
from igny8_core.business.automation.models import AutomationRule, ScheduledTask
from igny8_core.business.automation.services.automation_service import AutomationService
from .serializers import AutomationRuleSerializer, ScheduledTaskSerializer


@extend_schema_view(
    list=extend_schema(tags=['Automation']),
    create=extend_schema(tags=['Automation']),
    retrieve=extend_schema(tags=['Automation']),
    update=extend_schema(tags=['Automation']),
    partial_update=extend_schema(tags=['Automation']),
    destroy=extend_schema(tags=['Automation']),
)
class AutomationRuleViewSet(SiteSectorModelViewSet):
    """
    ViewSet for managing automation rules
    Unified API Standard v1.0 compliant
    """
    queryset = AutomationRule.objects.all()
    serializer_class = AutomationRuleSerializer
    permission_classes = [IsAuthenticatedAndActive, IsViewerOrAbove]
    pagination_class = CustomPageNumberPagination
    throttle_scope = 'automation'
    throttle_classes = [DebugScopedRateThrottle]
    
    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
    search_fields = ['name', 'description']
    ordering_fields = ['name', 'created_at', 'last_executed_at', 'execution_count']
    ordering = ['-created_at']
    filterset_fields = ['trigger', 'is_active', 'status']
    
    @action(detail=True, methods=['post'], url_path='execute', url_name='execute')
    def execute(self, request, pk=None):
        """Manually execute an automation rule"""
        rule = self.get_object()
        service = AutomationService()
        
        try:
            result = service.execute_rule(rule, context=request.data.get('context', {}))
            return success_response(
                data=result,
                message='Rule executed successfully',
                request=request
            )
        except Exception as e:
            return error_response(
                error=str(e),
                status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                request=request
            )


@extend_schema_view(
    list=extend_schema(tags=['Automation']),
    create=extend_schema(tags=['Automation']),
    retrieve=extend_schema(tags=['Automation']),
    update=extend_schema(tags=['Automation']),
    partial_update=extend_schema(tags=['Automation']),
    destroy=extend_schema(tags=['Automation']),
)
class ScheduledTaskViewSet(AccountModelViewSet):
    """
    ViewSet for managing scheduled tasks
    Unified API Standard v1.0 compliant
    """
    queryset = ScheduledTask.objects.select_related('automation_rule')
    serializer_class = ScheduledTaskSerializer
    permission_classes = [IsAuthenticatedAndActive, IsViewerOrAbove]
    pagination_class = CustomPageNumberPagination
    throttle_scope = 'automation'
    throttle_classes = [DebugScopedRateThrottle]
    
    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
    ordering_fields = ['scheduled_at', 'executed_at', 'status', 'created_at']
    ordering = ['-scheduled_at']
    filterset_fields = ['automation_rule', 'status']