better time usings

src/server/database/base.py

@@ -3,7 +3,7 @@
 This module provides the base class that all ORM models inherit from,
 along with common functionality and mixins.
 """
-from datetime import datetime
+from datetime import datetime, timezone
 from typing import Any
 
 from sqlalchemy import DateTime, func
@@ -67,7 +67,7 @@ class SoftDeleteMixin:
     
     def soft_delete(self) -> None:
         """Mark record as deleted without removing from database."""
-        self.deleted_at = datetime.utcnow()
+        self.deleted_at = datetime.now(timezone.utc)
     
     def restore(self) -> None:
         """Restore a soft deleted record."""

src/server/database/models.py

@@ -11,7 +11,7 @@ Models:
 """
 from __future__ import annotations
 
-from datetime import datetime
+from datetime import datetime, timezone
 from enum import Enum
 from typing import List, Optional
 
@@ -422,7 +422,7 @@ class UserSession(Base, TimestampMixin):
     @property
     def is_expired(self) -> bool:
         """Check if session has expired."""
-        return datetime.utcnow() > self.expires_at
+        return datetime.now(timezone.utc) > self.expires_at
     
     def revoke(self) -> None:
         """Revoke this session."""

src/server/database/service.py

@@ -14,7 +14,7 @@ All services support both async and sync operations for flexibility.
 from __future__ import annotations
 
 import logging
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 from typing import Dict, List, Optional
 
 from sqlalchemy import delete, select, update
@@ -276,7 +276,7 @@ class EpisodeService:
             file_path=file_path,
             file_size=file_size,
             is_downloaded=is_downloaded,
-            download_date=datetime.utcnow() if is_downloaded else None,
+            download_date=datetime.now(timezone.utc) if is_downloaded else None,
         )
         db.add(episode)
         await db.flush()
@@ -380,7 +380,7 @@ class EpisodeService:
         episode.is_downloaded = True
         episode.file_path = file_path
         episode.file_size = file_size
-        episode.download_date = datetime.utcnow()
+        episode.download_date = datetime.now(timezone.utc)
         
         await db.flush()
         await db.refresh(episode)
@@ -597,9 +597,9 @@ class DownloadQueueService:
         
         # Update timestamps based on status
         if status == DownloadStatus.DOWNLOADING and not item.started_at:
-            item.started_at = datetime.utcnow()
+            item.started_at = datetime.now(timezone.utc)
         elif status in (DownloadStatus.COMPLETED, DownloadStatus.FAILED):
-            item.completed_at = datetime.utcnow()
+            item.completed_at = datetime.now(timezone.utc)
         
         # Set error message for failed downloads
         if status == DownloadStatus.FAILED and error_message:
@@ -807,7 +807,7 @@ class UserSessionService:
         """
         query = select(UserSession).where(
             UserSession.is_active == True,
-            UserSession.expires_at > datetime.utcnow(),
+            UserSession.expires_at > datetime.now(timezone.utc),
         )
         
         if user_id:
@@ -833,8 +833,8 @@ class UserSessionService:
         session = await UserSessionService.get_by_session_id(db, session_id)
         if not session:
             return None
-        
-        session.last_activity = datetime.utcnow()
+
+        session.last_activity = datetime.now(timezone.utc)
         await db.flush()
         await db.refresh(session)
         return session
@@ -871,7 +871,7 @@ class UserSessionService:
         """
         result = await db.execute(
             delete(UserSession).where(
-                UserSession.expires_at < datetime.utcnow()
+                UserSession.expires_at < datetime.now(timezone.utc)
             )
         )
         count = result.rowcount