using System;
using System.Threading;
using System.Threading.Tasks;
using Artemis.UI.Screens.Workshop.Entries.Details;
using Artemis.UI.Screens.Workshop.Parameters;
using Artemis.UI.Shared.Routing;
using Artemis.WebClient.Workshop;
using PropertyChanged.SourceGenerator;
using StrawberryShake;

namespace Artemis.UI.Screens.Workshop.Plugin;

public partial class PluginDetailsViewModel : RoutableScreen<WorkshopDetailParameters>
{
    private readonly IWorkshopClient _client;
    private readonly Func<IGetEntryById_Entry, EntryInfoViewModel> _getEntryInfoViewModel;
    private readonly Func<IGetEntryById_Entry, EntryReleasesViewModel> _getEntryReleasesViewModel;
    private readonly Func<IGetEntryById_Entry, EntryImagesViewModel> _getEntryImagesViewModel;
    [Notify] private IGetEntryById_Entry? _entry;
    [Notify] private EntryInfoViewModel? _entryInfoViewModel;
    [Notify] private EntryReleasesViewModel? _entryReleasesViewModel;
    [Notify] private EntryImagesViewModel? _entryImagesViewModel;

    public PluginDetailsViewModel(IWorkshopClient client,
        Func<IGetEntryById_Entry, EntryInfoViewModel> getEntryInfoViewModel,
        Func<IGetEntryById_Entry, EntryReleasesViewModel> getEntryReleasesViewModel,
        Func<IGetEntryById_Entry, EntryImagesViewModel> getEntryImagesViewModel)
    {
        _client = client;
        _getEntryInfoViewModel = getEntryInfoViewModel;
        _getEntryReleasesViewModel = getEntryReleasesViewModel;
        _getEntryImagesViewModel = getEntryImagesViewModel;
    }
    
    public override async Task OnNavigating(WorkshopDetailParameters parameters, NavigationArguments args, CancellationToken cancellationToken)
    {
        await GetEntry(parameters.EntryId, cancellationToken);
    }

    private async Task GetEntry(long entryId, CancellationToken cancellationToken)
    {
        IOperationResult<IGetEntryByIdResult> result = await _client.GetEntryById.ExecuteAsync(entryId, cancellationToken);
        if (result.IsErrorResult())
            return;

        Entry = result.Data?.Entry;
        if (Entry == null)
        {
            EntryInfoViewModel = null;
            EntryReleasesViewModel = null;
        }
        else
        {
            EntryInfoViewModel = _getEntryInfoViewModel(Entry);
            EntryReleasesViewModel = _getEntryReleasesViewModel(Entry);
            EntryImagesViewModel = _getEntryImagesViewModel(Entry);
        }
    }
}