Initial commit

srcs/RobotNet10/RobotApp/RobotNet10.RobotApp/Hubs/CameraQrHub.cs

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+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.SignalR;
+using RobotNet10.RobotApp.Client.Shared.Devices;
+using RobotNet10.RobotApp.Devices;
+using RobotNet10.Shared.Geometry;
+
+namespace RobotNet10.RobotApp.Hubs;
+
+/// <summary>
+/// SignalR Hub cho Camera QR device - cung cấp real-time QR detection data
+/// </summary>
+[Authorize]
+public class CameraQrHub(IDeviceProvider deviceProvider) : Hub
+{
+    /// <summary>
+    /// Lấy thông tin device (DeviceName) theo device ID
+    /// </summary>
+    public async Task<DeviceInfoDto?> GetDeviceInfo(string deviceId)
+    {
+        var device = deviceProvider.GetDevice(deviceId);
+        if (device is not ICameraQr)
+        {
+            return null;
+        }
+
+        return new DeviceInfoDto
+        {
+            DeviceId = device.DeviceId,
+            DeviceName = device.DeviceName
+        };
+    }
+
+    /// <summary>
+    /// Lấy dữ liệu Camera QR theo device ID
+    /// </summary>
+    public async Task<CameraQrDataDto?> GetCameraQrData(string deviceId)
+    {
+        var device = deviceProvider.GetDevice(deviceId);
+        if (device is not ICameraQr cameraQr)
+        {
+            return null;
+        }
+
+        return MapToDto(cameraQr);
+    }
+
+    /// <summary>
+    /// Map ICameraQr sang CameraQrDataDto
+    /// </summary>
+    private static CameraQrDataDto MapToDto(ICameraQr cameraQr)
+    {
+        return new CameraQrDataDto
+        {
+            IsConnected = cameraQr.IsConnected,
+            Codes = cameraQr.Codes,
+        };
+    }
+}