Aggiunta login

Template.Shared/Core/Services/AppAuthenticationStateProvider.cs

@@ -0,0 +1,56 @@
+using IntegryApiClient.Core.Domain.Abstraction.Contracts.Account;
+using System.Security.Claims;
+using Microsoft.AspNetCore.Components.Authorization;
+
+namespace Template.Shared.Core.Services;
+
+public class AppAuthenticationStateProvider : AuthenticationStateProvider
+{
+    private readonly IUserSession _userSession;
+    private readonly IUserAccountService _userAccountService;
+
+
+    public AppAuthenticationStateProvider(IUserSession userSession, IUserAccountService userAccountService)
+    {
+        _userSession = userSession;
+        _userAccountService = userAccountService;
+
+        userAccountService.ExpiredUserSession += (_, _) =>
+            NotifyAuthenticationStateChanged(LoadAuthenticationState());
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        return await LoadAuthenticationState();
+    }
+
+    public async void SignOut()
+    {
+        await _userAccountService.Logout();
+        NotifyAuthenticationState();
+    }
+
+    public void NotifyAuthenticationState()
+    {
+        NotifyAuthenticationStateChanged(LoadAuthenticationState());
+    }
+
+    private async Task<AuthenticationState> LoadAuthenticationState()
+    {
+        if (!await _userSession.IsLoggedIn() || !await _userSession.IsRefreshTokenValid())
+        {
+            return new AuthenticationState(
+                new ClaimsPrincipal(
+                    new ClaimsIdentity()
+                )
+            );
+        }
+
+        var claimIdentity = new ClaimsIdentity(_userSession.JwtToken!.Claims, "jwt");
+        var user = new ClaimsPrincipal(claimIdentity);
+
+
+        var authenticationState = new AuthenticationState(user);
+        return authenticationState;
+    }
+}