Add project data

Tabletop.Core/Services/AuthService.cs

@@ -0,0 +1,62 @@
+using DbController;
+using DbController.SqlServer;
+using Microsoft.AspNetCore.Components.Authorization;
+using System.Security.Claims;
+using Tabletop.Core.Models;
+
+namespace Tabletop.Core.Services
+{
+    public class AuthService(AuthenticationStateProvider authenticationStateProvider, UserService userService)
+    {
+
+        /// <summary>
+        /// Converts the active claims into a <see cref="User"/> object
+        /// </summary>
+        /// <returns></returns>
+        public async Task<User?> GetUserAsync(IDbController? dbController = null)
+        {
+
+            var authState = await authenticationStateProvider.GetAuthenticationStateAsync();
+            var user = authState.User;
+            if (user.Identity is not null && user.Identity.IsAuthenticated)
+            {
+                Claim? claim = user.FindFirst("UserId");
+                if (claim is null)
+                {
+                    return null;
+                }
+
+                var userId = Convert.ToInt32(claim.Value);
+
+                bool shouldDispose = dbController is null;
+
+
+                dbController ??= new SqlController(AppdataService.ConnectionString);
+
+                var result = await userService.GetAsync(userId, dbController);
+
+                if (shouldDispose)
+                {
+                    dbController.Dispose();
+                }
+
+                return result;
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Checks if the currently logged in user as a specific role within it's claims.
+        /// </summary>
+        /// <param name="roleName"></param>
+        /// <returns></returns>
+        public async Task<bool> HasRole(string roleName)
+        {
+            var authState = await authenticationStateProvider.GetAuthenticationStateAsync();
+            var user = authState.User;
+
+            return user.IsInRole(roleName);
+        }
+    }
+}