增加获取地址详情的接口

app/api/endpoints/address.py

@@ -144,3 +144,41 @@ async def set_default_address(
     db.commit()
     db.refresh(db_address)
     return success_response(data=AddressInfo.model_validate(db_address))
+
+@router.get("/{address_id}", response_model=ResponseModel)
+async def get_address(
+    address_id: int,
+    db: Session = Depends(get_db),
+    current_user: UserDB = Depends(get_current_user)
+):
+    """获取地址详情"""
+    # 查询地址，并 join 小区名称
+    address = db.query(
+        AddressDB,
+        CommunityDB.name.label('community_name')
+    ).join(
+        CommunityDB,
+        AddressDB.community_id == CommunityDB.id
+    ).filter(
+        AddressDB.id == address_id,
+        AddressDB.user_id == current_user.userid  # 只能查看自己的地址
+    ).first()
+    
+    if not address:
+        return error_response(code=404, message="地址不存在")
+    
+    # 构建返回数据
+    address_data = {
+        "id": address.AddressDB.id,
+        "community_id": address.AddressDB.community_id,
+        "community_name": address.community_name,
+        "community_building_id": address.AddressDB.community_building_id,
+        "community_building_name": address.AddressDB.community_building_name,
+        "address_detail": address.AddressDB.address_detail,
+        "name": address.AddressDB.name,
+        "phone": address.AddressDB.phone,
+        "gender": address.AddressDB.gender,
+        "is_default": address.AddressDB.is_default
+    }
+    
+    return success_response(data=AddressInfo(**address_data))