using System;
using System.Collections.Generic;
using System.Linq;
using DynamicData.Binding;
using FrontendAvalonia.Models;
using FrontendAvalonia.Services.GamenightApi;
using ReactiveUI;

namespace FrontendAvalonia.ViewModels;

public class GamenightsViewModel : PageViewModelBase
{
    private IGamenight Gamenight { get; }
    private GamenightModel Model { get; }
    private LoginViewModel LoginViewModel { get; }

    public AddGamenightViewModel AddGamenightViewModel { get; }

    private ObservableCollectionExtended<ReactiveObject> _gamenightItems = new ObservableCollectionExtended<ReactiveObject>();
    public ObservableCollectionExtended<ReactiveObject> GamenightItems {
        get => _gamenightItems;
        set => this.RaiseAndSetIfChanged(ref _gamenightItems, value);
    }

    public GamenightsViewModel(IScreen screen, IGamenight gamenight, GamenightModel model, LoginViewModel loginViewModel)
    : base(screen)
    {
        Gamenight = gamenight;
        Model = model;
        LoginViewModel = loginViewModel;
        AddGamenightViewModel = new AddGamenightViewModel(Gamenight, model);
        this._gamenightItems.Add(AddGamenightViewModel);
        this.WhenActivated(OnActivated);
    }

    private IEnumerable<IDisposable> OnActivated()
    {
        if (Model.UserToken == null)
        {
            HostScreen.Router.Navigate.Execute(LoginViewModel);
        }
        return Enumerable.Empty<IDisposable>();
    }
}