blazing-console/Components/RequiresAuth.razor

@*
 * Copyright 2024 Ivy Collective <sys@ivycollective.dev>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *@

@using Blazored.LocalStorage
@inject ILocalStorageService localStorage
@inject APIService api
@inject NavigationManager Navigation

@if (IsAuthenticated) {
    @ChildContent
} else {
    @if (LoadingContent != null) {
        @LoadingContent
    } else {
        <div style="display: flex; justify-content: center; align-items: center; min-height: 100vh;">
            <FluentProgressRing Width="6rem"></FluentProgressRing>
        </div>
    }
}

@code {
    public bool IsAuthenticated { get; set; } = false;

    protected override async Task OnInitializedAsync()
    {
        string? jwt = await localStorage.GetItemAsync<string>("jwt");
        if (jwt == null) {
            Navigation.NavigateTo("/login", false);
            return;
        }

        api.SetJwt(jwt);
        bool authorized = await api.TestAuthorization();
        if (authorized) {
            IsAuthenticated = true;
        } else {
            Navigation.NavigateTo("/login", false);
        }
    }

    [Parameter]
    public required RenderFragment ChildContent { get; set; }

    [Parameter]
    public RenderFragment? LoadingContent { get; set; }
}