PCRB follow up client side logic

MesaFabApproval.Client/Pages/Login.razor.cs

@@ -0,0 +1,53 @@
+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
+using Microsoft.AspNetCore.WebUtilities;
+using Microsoft.Extensions.Caching.Memory;
+
+using MudBlazor;
+
+namespace MesaFabApproval.Client.Pages;
+
+public partial class Login {
+    [Inject] NavigationManager navigationManager { get; set; }
+    [Inject] IMemoryCache cache { get; set; }
+
+    public string? _redirectPath { get; set; }
+    private bool success;
+    private bool processing = false;
+    private string[] errors = { };
+    private string? username;
+    private string? password;
+
+    protected override async Task OnParametersSetAsync() {
+        Uri uri = navigationManager.ToAbsoluteUri(navigationManager.Uri);
+
+        if (QueryHelpers.ParseQuery(uri.Query).TryGetValue("redirectPath", out var redirectPath)) {
+            _redirectPath = System.Net.WebUtility.UrlDecode(redirectPath);
+        }
+
+        if (string.IsNullOrWhiteSpace(_redirectPath)) {
+            _redirectPath = cache.Get<string>("redirectUrl");
+        }
+    }
+
+    private async Task SubmitLogin() {
+        processing = true;
+        if (string.IsNullOrWhiteSpace(username)) snackbar.Add("Username is required!", Severity.Error);
+        else if (string.IsNullOrWhiteSpace(password)) snackbar.Add("Password is required!", Severity.Error);
+        else {
+            await authStateProvider.LoginAsync(username, password);
+            if (!string.IsNullOrWhiteSpace(_redirectPath)) {
+                navManager.NavigateTo(_redirectPath);
+            } else {
+                navManager.NavigateTo("dashboard");
+            }
+        }
+        processing = false;
+    }
+
+    private async Task SubmitIfEnter(KeyboardEventArgs e) {
+        if (e.Key == "Enter" && success) {
+            SubmitLogin();
+        }
+    }
+}