首次提交by MimoCode

backend/app/services/notification.py

@@ -0,0 +1,39 @@
+from typing import Optional, List
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.notification import Notification
+from app.repositories.notification import NotificationRepository
+
+
+class NotificationService:
+    def __init__(self, db: AsyncSession):
+        self.db = db
+        self.repo = NotificationRepository(db)
+
+    async def get_notifications(
+        self,
+        user_id: Optional[int] = None,
+        is_read: Optional[bool] = None,
+        type: Optional[str] = None,
+        page: int = 1,
+        page_size: int = 20
+    ) -> List[Notification]:
+        return await self.repo.get_list(
+            user_id=user_id,
+            is_read=is_read,
+            type=type,
+            page=page,
+            page_size=page_size
+        )
+
+    async def create_notification(self, data: dict) -> Notification:
+        return await self.repo.create(data)
+
+    async def mark_as_read(self, notification_id: int) -> bool:
+        return await self.repo.mark_as_read(notification_id)
+
+    async def mark_all_as_read(self, user_id: int) -> int:
+        return await self.repo.mark_all_as_read(user_id)
+
+    async def delete_notification(self, notification_id: int) -> bool:
+        return await self.repo.delete(notification_id)