feat: enable tenant isolation on duplicate document indexing tasks (#29080)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/services/document_indexing_proxy/base.py

@@ -0,0 +1,111 @@
+import logging
+from abc import ABC, abstractmethod
+from collections.abc import Callable
+from functools import cached_property
+from typing import Any, ClassVar
+
+from enums.cloud_plan import CloudPlan
+from services.feature_service import FeatureService
+
+logger = logging.getLogger(__name__)
+
+
+class DocumentTaskProxyBase(ABC):
+    """
+    Base proxy for all document processing tasks.
+
+    Handles common logic:
+    - Feature/billing checks
+    - Dispatch routing based on plan
+
+    Subclasses must define:
+    - QUEUE_NAME: Redis queue identifier
+    - NORMAL_TASK_FUNC: Task function for normal priority
+    - PRIORITY_TASK_FUNC: Task function for high priority
+    """
+
+    QUEUE_NAME: ClassVar[str]
+    NORMAL_TASK_FUNC: ClassVar[Callable[..., Any]]
+    PRIORITY_TASK_FUNC: ClassVar[Callable[..., Any]]
+
+    def __init__(self, tenant_id: str, dataset_id: str):
+        """
+        Initialize with minimal required parameters.
+
+        Args:
+            tenant_id: Tenant identifier for billing/features
+            dataset_id: Dataset identifier for logging
+        """
+        self._tenant_id = tenant_id
+        self._dataset_id = dataset_id
+
+    @cached_property
+    def features(self):
+        return FeatureService.get_features(self._tenant_id)
+
+    @abstractmethod
+    def _send_to_direct_queue(self, task_func: Callable[..., Any]):
+        """
+        Send task directly to Celery queue without tenant isolation.
+
+        Subclasses implement this to pass task-specific parameters.
+
+        Args:
+            task_func: The Celery task function to call
+        """
+        pass
+
+    @abstractmethod
+    def _send_to_tenant_queue(self, task_func: Callable[..., Any]):
+        """
+        Send task to tenant-isolated queue.
+
+        Subclasses implement this to handle queue management.
+
+        Args:
+            task_func: The Celery task function to call
+        """
+        pass
+
+    def _send_to_default_tenant_queue(self):
+        """Route to normal priority with tenant isolation."""
+        self._send_to_tenant_queue(self.NORMAL_TASK_FUNC)
+
+    def _send_to_priority_tenant_queue(self):
+        """Route to priority queue with tenant isolation."""
+        self._send_to_tenant_queue(self.PRIORITY_TASK_FUNC)
+
+    def _send_to_priority_direct_queue(self):
+        """Route to priority queue without tenant isolation."""
+        self._send_to_direct_queue(self.PRIORITY_TASK_FUNC)
+
+    def _dispatch(self):
+        """
+        Dispatch task based on billing plan.
+
+        Routing logic:
+        - Sandbox plan → normal queue + tenant isolation
+        - Paid plans → priority queue + tenant isolation
+        - Self-hosted → priority queue, no isolation
+        """
+        logger.info(
+            "dispatch args: %s - %s - %s",
+            self._tenant_id,
+            self.features.billing.enabled,
+            self.features.billing.subscription.plan,
+        )
+        # dispatch to different indexing queue with tenant isolation when billing enabled
+        if self.features.billing.enabled:
+            if self.features.billing.subscription.plan == CloudPlan.SANDBOX:
+                # dispatch to normal pipeline queue with tenant self sub queue for sandbox plan
+                self._send_to_default_tenant_queue()
+            else:
+                # dispatch to priority pipeline queue with tenant self sub queue for other plans
+                self._send_to_priority_tenant_queue()
+        else:
+            # dispatch to priority queue without tenant isolation for others, e.g.: self-hosted or enterprise
+            self._send_to_priority_direct_queue()
+
+    def delay(self):
+        """Public API: Queue the task asynchronously."""
+        self._dispatch()