Добавьте файлы проекта.

Yuna.Website/Yuna.Website.Server/Services/DeviceService/DeviceService.cs

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+
+using Yuna.Website.Server.Storage;
+using Yuna.Website.Server.Model;
+
+using Yuna.Website.Server.Services.DeviceSkillService;
+using Yuna.Website.Server.Storage.Repositories.Device;
+
+namespace Yuna.Website.Server.Services.DeviceService
+{
+    public class DeviceService : IDeviceService
+    {
+        private readonly IPropService _propService;
+        private readonly IDeviceRepository _deviceRepository;
+        public DeviceService(IPropService propService, IDeviceRepository repository)
+        {
+            _propService = propService;
+            _deviceRepository = repository;
+        }
+
+        public async Task<Device?> AddProps(IReadOnlyList<Prop> props, long deviceId)
+        {
+            var device = await _deviceRepository.GetById(deviceId);
+            if (device is null) return null;
+
+            await _deviceRepository.AddProps(props, deviceId);
+
+            device.Props.AddRange(props);
+            return device;
+        }
+
+        public async Task<Device?> Create(Device device)
+        {
+            var result = await _deviceRepository.Create(device);
+            return result;
+        }
+
+        public async Task<Device?> Delete(long id)
+        {
+            var prop = await _deviceRepository.GetById(id);
+            if (prop is null) return null;
+
+            var result = await _deviceRepository.Delete(id);
+            return result;
+        }
+
+        public async Task<Device?> GetById(long id)
+        {
+            var result = await _deviceRepository.GetById(id);
+            return result;
+        }
+        public async Task<IReadOnlyList<Device>> GetList()
+        {
+            var result = await _deviceRepository.GetList();
+            return result ?? [];
+        }
+    }
+}