Auth and error handling components

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Components/Auth/AuthComponent.razor

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+@using System.Net
+@using BlazorWebAssemblyVisaApiClient.Components.Auth.Exceptions
+@using BlazorWebAssemblyVisaApiClient.ErrorHandling
+@using VisaApiClient
+
+@code {
+    public static bool LoggedIn;
+    private static AuthData savedData = null!;
+
+    [CascadingParameter] private GlobalErrorHandler ErrorHandler { get; set; } = null!;
+
+    [CascadingParameter] private Status? Status { get; set; }
+
+    [Inject] private Client Client { get; set; } = null!;
+
+    [Inject] private NavigationManager Nav { get; set; } = null!;
+
+    ///Authorize with email and password
+    /// <returns>Message to user</returns>
+    public async Task TryAuthorize(AuthData authData)
+    {
+        Status?.SetMessage("Wait...");
+        try
+        {
+            var token = await Client.LoginAsync(authData.Email, authData.Password);
+            Client.SetAuthToken(token);
+            savedData = authData;
+
+            Status?.SetSucces("Logged in successfully.");
+        }
+        catch (ApiException<ProblemDetails> e)
+        {
+            if (e.Result.Status == (int)HttpStatusCode.Forbidden)
+            {
+                Status?.SetError(e.Result.Detail!);
+            }
+            else
+            {
+                Status?.SetError("Error occured");
+                ErrorHandler.Handle(e);
+            }
+        }
+        catch (Exception e)
+        {
+            Status?.SetError("Error occured");
+            ErrorHandler.Handle(e);
+        }
+    }
+
+    ///Re-auth if token expired or something
+    public async Task ReAuthenticate(bool redirectOnFailure = true)
+    {
+        if (!LoggedIn)
+        {
+            if (redirectOnFailure)
+            {
+                Nav.NavigateTo("/");
+                return;
+            }
+
+            throw new NotLoggedInException();
+        }
+
+        await TryAuthorize(savedData);
+    }
+
+}

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Components/Auth/Exceptions/NotLoggedInException.cs

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+using BlazorWebAssemblyVisaApiClient.Common;
+using VisaApiClient;
+
+namespace BlazorWebAssemblyVisaApiClient.Components.Auth.Exceptions
+{
+    public class NotLoggedInException() : BlazorClientException("User is not logged in");
+}

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Components/Base/VisaClientComponentBase.razor

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+@using BlazorWebAssemblyVisaApiClient.ErrorHandling
+@using VisaApiClient
+
+@code
+{
+    [CascadingParameter] protected GlobalErrorHandler ErrorHandler { get; set; } = null!;
+
+    [Inject] protected Client Client { get; set; } = null!;
+}

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Components/Status.razor

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+<p class="@statusClass">@((MarkupString)StatusText)</p>
+<CascadingValue Value="this">
+    @ChildContent
+</CascadingValue>
+
+@code {
+    private string statusClass = string.Empty;
+
+    [Parameter]
+    public RenderFragment? ChildContent { get; set; }
+
+    public string StatusText { get; set; } = string.Empty;
+
+    public void SetMessage(string message)
+    {
+        statusClass = string.Empty;
+        StatusText = message;
+        StateHasChanged();
+    }
+
+    public void SetError(string message)
+    {
+        statusClass = "validation-message";
+        StatusText = message;
+        StateHasChanged();
+    }
+
+    public void SetSucces(string message)
+    {
+        statusClass = "text-success";
+        StatusText = message;
+        StateHasChanged();
+    }
+}