261 lines
8.8 KiB
Python
261 lines
8.8 KiB
Python
# services/pos/app/services/tenant_deletion_service.py
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"""
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Tenant Data Deletion Service for POS Service
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Handles deletion of all POS-related data for a tenant
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"""
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from typing import Dict
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from sqlalchemy import select, func, delete
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from sqlalchemy.ext.asyncio import AsyncSession
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import structlog
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from shared.services.tenant_deletion import (
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BaseTenantDataDeletionService,
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TenantDataDeletionResult
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)
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from app.models import (
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POSConfiguration,
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POSTransaction,
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POSTransactionItem,
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POSWebhookLog,
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POSSyncLog,
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AuditLog
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)
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logger = structlog.get_logger(__name__)
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class POSTenantDeletionService(BaseTenantDataDeletionService):
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"""Service for deleting all POS-related data for a tenant"""
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def __init__(self, db: AsyncSession):
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self.db = db
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self.service_name = "pos"
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async def get_tenant_data_preview(self, tenant_id: str) -> Dict[str, int]:
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"""
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Get counts of what would be deleted for a tenant (dry-run)
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Args:
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tenant_id: The tenant ID to preview deletion for
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Returns:
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Dictionary with entity names and their counts
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"""
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logger.info("pos.tenant_deletion.preview", tenant_id=tenant_id)
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preview = {}
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try:
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# Count POS configurations
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config_count = await self.db.scalar(
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select(func.count(POSConfiguration.id)).where(
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POSConfiguration.tenant_id == tenant_id
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)
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)
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preview["pos_configurations"] = config_count or 0
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# Count POS transactions
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transaction_count = await self.db.scalar(
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select(func.count(POSTransaction.id)).where(
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POSTransaction.tenant_id == tenant_id
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)
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)
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preview["pos_transactions"] = transaction_count or 0
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# Count POS transaction items
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item_count = await self.db.scalar(
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select(func.count(POSTransactionItem.id)).where(
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POSTransactionItem.tenant_id == tenant_id
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)
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)
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preview["pos_transaction_items"] = item_count or 0
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# Count webhook logs
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webhook_count = await self.db.scalar(
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select(func.count(POSWebhookLog.id)).where(
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POSWebhookLog.tenant_id == tenant_id
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)
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)
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preview["pos_webhook_logs"] = webhook_count or 0
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# Count sync logs
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sync_count = await self.db.scalar(
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select(func.count(POSSyncLog.id)).where(
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POSSyncLog.tenant_id == tenant_id
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)
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)
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preview["pos_sync_logs"] = sync_count or 0
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# Count audit logs
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audit_count = await self.db.scalar(
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select(func.count(AuditLog.id)).where(
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AuditLog.tenant_id == tenant_id
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)
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)
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preview["audit_logs"] = audit_count or 0
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logger.info(
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"pos.tenant_deletion.preview_complete",
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tenant_id=tenant_id,
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preview=preview
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)
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except Exception as e:
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logger.error(
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"pos.tenant_deletion.preview_error",
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tenant_id=tenant_id,
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error=str(e),
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exc_info=True
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)
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raise
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return preview
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async def delete_tenant_data(self, tenant_id: str) -> TenantDataDeletionResult:
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"""
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Permanently delete all POS data for a tenant
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Deletion order (respecting foreign key constraints):
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1. POSTransactionItem (references POSTransaction)
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2. POSTransaction (references POSConfiguration)
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3. POSWebhookLog (independent)
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4. POSSyncLog (references POSConfiguration)
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5. POSConfiguration (base configuration)
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6. AuditLog (independent)
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Args:
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tenant_id: The tenant ID to delete data for
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Returns:
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TenantDataDeletionResult with deletion counts and any errors
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"""
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logger.info("pos.tenant_deletion.started", tenant_id=tenant_id)
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result = TenantDataDeletionResult(tenant_id=tenant_id, service_name=self.service_name)
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try:
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# Step 1: Delete POS transaction items (child of transactions)
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logger.info("pos.tenant_deletion.deleting_transaction_items", tenant_id=tenant_id)
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items_result = await self.db.execute(
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delete(POSTransactionItem).where(
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POSTransactionItem.tenant_id == tenant_id
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)
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)
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result.deleted_counts["pos_transaction_items"] = items_result.rowcount
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logger.info(
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"pos.tenant_deletion.transaction_items_deleted",
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tenant_id=tenant_id,
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count=items_result.rowcount
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)
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# Step 2: Delete POS transactions
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logger.info("pos.tenant_deletion.deleting_transactions", tenant_id=tenant_id)
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transactions_result = await self.db.execute(
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delete(POSTransaction).where(
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POSTransaction.tenant_id == tenant_id
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)
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)
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result.deleted_counts["pos_transactions"] = transactions_result.rowcount
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logger.info(
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"pos.tenant_deletion.transactions_deleted",
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tenant_id=tenant_id,
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count=transactions_result.rowcount
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)
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# Step 3: Delete webhook logs
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logger.info("pos.tenant_deletion.deleting_webhook_logs", tenant_id=tenant_id)
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webhook_result = await self.db.execute(
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delete(POSWebhookLog).where(
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POSWebhookLog.tenant_id == tenant_id
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)
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)
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result.deleted_counts["pos_webhook_logs"] = webhook_result.rowcount
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logger.info(
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"pos.tenant_deletion.webhook_logs_deleted",
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tenant_id=tenant_id,
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count=webhook_result.rowcount
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)
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# Step 4: Delete sync logs
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logger.info("pos.tenant_deletion.deleting_sync_logs", tenant_id=tenant_id)
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sync_result = await self.db.execute(
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delete(POSSyncLog).where(
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POSSyncLog.tenant_id == tenant_id
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)
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)
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result.deleted_counts["pos_sync_logs"] = sync_result.rowcount
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logger.info(
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"pos.tenant_deletion.sync_logs_deleted",
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tenant_id=tenant_id,
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count=sync_result.rowcount
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)
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# Step 5: Delete POS configurations (last, as it's referenced by transactions and sync logs)
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logger.info("pos.tenant_deletion.deleting_configurations", tenant_id=tenant_id)
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config_result = await self.db.execute(
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delete(POSConfiguration).where(
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POSConfiguration.tenant_id == tenant_id
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)
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)
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result.deleted_counts["pos_configurations"] = config_result.rowcount
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logger.info(
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"pos.tenant_deletion.configurations_deleted",
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tenant_id=tenant_id,
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count=config_result.rowcount
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)
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# Step 6: Delete audit logs
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logger.info("pos.tenant_deletion.deleting_audit_logs", tenant_id=tenant_id)
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audit_result = await self.db.execute(
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delete(AuditLog).where(
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AuditLog.tenant_id == tenant_id
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)
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)
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result.deleted_counts["audit_logs"] = audit_result.rowcount
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logger.info(
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"pos.tenant_deletion.audit_logs_deleted",
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tenant_id=tenant_id,
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count=audit_result.rowcount
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)
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# Commit the transaction
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await self.db.commit()
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# Calculate total deleted
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total_deleted = sum(result.deleted_counts.values())
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logger.info(
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"pos.tenant_deletion.completed",
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tenant_id=tenant_id,
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total_deleted=total_deleted,
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breakdown=result.deleted_counts
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)
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result.success = True
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except Exception as e:
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await self.db.rollback()
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error_msg = f"Failed to delete POS data for tenant {tenant_id}: {str(e)}"
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logger.error(
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"pos.tenant_deletion.failed",
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tenant_id=tenant_id,
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error=str(e),
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exc_info=True
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)
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result.errors.append(error_msg)
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result.success = False
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return result
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def get_pos_tenant_deletion_service(db: AsyncSession) -> POSTenantDeletionService:
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"""
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Factory function to create POSTenantDeletionService instance
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Args:
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db: AsyncSession database session
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Returns:
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POSTenantDeletionService instance
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"""
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return POSTenantDeletionService(db)
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