// Copyright (c) Microsoft Corporation
// The Microsoft Corporation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using Microsoft.CmdPal.Core.ViewModels;
using Microsoft.UI.Dispatching;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Navigation;

namespace Microsoft.CmdPal.UI.Pages;

/// <summary>
/// We use this page to do initialization of our extensions and cache loading to hydrate our ViewModels.
/// </summary>
public sealed partial class LoadingPage : Page
{
    private readonly DispatcherQueue _queue = DispatcherQueue.GetForCurrentThread();

    public LoadingPage()
    {
        this.InitializeComponent();
    }

    protected override void OnNavigatedTo(NavigationEventArgs e)
    {
        if (e.Parameter is ShellViewModel shellVM
            && shellVM.LoadCommand is not null)
        {
            // This will load the built-in commands, then navigate to the main page.
            // Once the mainpage loads, we'll start loading extensions.
            shellVM.LoadCommand.Execute(null);

            _ = Task.Run(async () =>
            {
                await shellVM.LoadCommand.ExecutionTask!;

                if (shellVM.LoadCommand.ExecutionTask.Status != TaskStatus.RanToCompletion)
                {
                    // TODO: Handle failure case
                }
            });
        }

        base.OnNavigatedTo(e);
    }
}