RpgRoller/RpgRoller/Components/Pages/Home.razor.cs

using System.Diagnostics.CodeAnalysis;
using Microsoft.AspNetCore.Components;
using RpgRoller.Contracts;

namespace RpgRoller.Components.Pages;

[ExcludeFromCodeCoverage]
public partial class Home
{
    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (!firstRender || HasInitialized)
            return;

        HasInitialized = true;
        await InitializeAsync();
        await InvokeAsync(StateHasChanged);
    }

    private async Task InitializeAsync()
    {
        try
        {
            _ = await ApiClient.RequestAsync<MeResponse>("GET", "/api/me");
            CurrentView = HomeViewMode.Workspace;
            ClearStatus();
        }
        catch (ApiRequestException ex) when (ex.StatusCode == 401)
        {
            CurrentView = HomeViewMode.Anonymous;
            ClearStatus();
        }
        catch (ApiRequestException ex)
        {
            CurrentView = HomeViewMode.Anonymous;
            SetStatus(ex.Message, true);
        }
    }

    private Task OnLoggedInAsync()
    {
        CurrentView = HomeViewMode.Workspace;
        ClearStatus();
        return InvokeAsync(StateHasChanged);
    }

    private Task OnLoggedOutAsync(string? message)
    {
        CurrentView = HomeViewMode.Anonymous;
        if (string.IsNullOrWhiteSpace(message))
        {
            ClearStatus();
            return InvokeAsync(StateHasChanged);
        }

        var isError = message.Contains("expired", StringComparison.OrdinalIgnoreCase);
        SetStatus(message, isError);
        return InvokeAsync(StateHasChanged);
    }

    private void SetStatus(string message, bool isError)
    {
        StatusMessage = message;
        StatusIsError = isError;
    }

    private void ClearStatus()
    {
        StatusMessage = null;
        StatusIsError = false;
    }

    private HomeViewMode CurrentView { get; set; } = HomeViewMode.Loading;
    private string? StatusMessage { get; set; }
    private bool StatusIsError { get; set; }
    private bool HasInitialized { get; set; }

    [Inject]
    private RpgRollerApiClient ApiClient { get; set; } = null!;
}