using Elternbeirat.PocketBase;
using Elternbeirat.Web.Features.Layout;
using Microsoft.AspNetCore.Components;

namespace Elternbeirat.Web.Components.Layout;

public partial class MainLayout
{
    [LoggerMessage(
        Level = LogLevel.Warning,
        Message = "Could not load navigation pages from PocketBase; the menu is empty.")]
    private static partial void LogSourceUnavailable(ILogger logger, Exception exception);

    [Inject]
    private PocketBaseClient PocketBase { get; set; } = null!;

    [Inject]
    private ILogger<MainLayout> Logger { get; set; } = null!;

    [CascadingParameter]
    private HttpContext? HttpContext { get; set; }

    private IReadOnlyList<NavLinkItem> _header = [];
    private IReadOnlyList<NavLinkItem> _footer = [];

    // Berlin's year, not the server's (UTC) -- see FooterYear.
    private readonly int _year = FooterYear.For(TimeProvider.System.GetUtcNow());

    protected override async Task OnInitializedAsync()
    {
        try
        {
            var pages = await PocketBase.GetPagesAsync(HttpContext?.RequestAborted ?? default);
            _header = NavBuilder.Header(pages);
            _footer = NavBuilder.Footer(pages);
        }
        catch (PocketBaseUnavailableException ex)
        {
            // Only the menu fails: render the chrome with an empty menu instead of a
            // 500, so every page stays reachable. The brand link still leads home.
            LogSourceUnavailable(Logger, ex);
        }
    }
}