ResultsViewModel.cs

using CommunityToolkit.Mvvm.ComponentModel;
using System.Windows.Data;
using Vereinsmeisterschaften.Contracts.ViewModels;
using Vereinsmeisterschaften.Core.Contracts.Services;
using Vereinsmeisterschaften.Core.Models;
using Vereinsmeisterschaften.Core.Services;
using Vereinsmeisterschaften.Core.Settings;
 
namespace Vereinsmeisterschaften.ViewModels;

public partial class ResultsViewModel : ObservableObject, INavigationAware
{
    [ObservableProperty]
    private List<Person> _sortedPersons;
 
    private ResultTypes _resultType = ResultTypes.Overall;
    public ResultTypes ResultType
    {
        get => _resultType;
        set
        {
            if (SetProperty(ref _resultType, value))
            {
                updatePersonsAndPlaces();
            }
        }
    }

    public List<PersonStart> PodiumGoldStarts => _scoreService.GetWinnersPodiumStarts(ResultType, ResultPodiumsPlaces.Gold);

    public List<PersonStart> PodiumSilverStarts => _scoreService.GetWinnersPodiumStarts(ResultType, ResultPodiumsPlaces.Silver);

    public List<PersonStart> PodiumBronzeStarts => _scoreService.GetWinnersPodiumStarts(ResultType, ResultPodiumsPlaces.Bronze);
 
    private IScoreService _scoreService;

    public ResultsViewModel(IScoreService scoreService)
    {
        _scoreService = scoreService;
        ResultType = ResultTypes.Overall;
        updatePersonsAndPlaces();
    }

    public void OnNavigatedTo(object parameter)
    {
        updatePersonsAndPlaces();
    }

    public void OnNavigatedFrom()
    {
    }
 
    private void updatePersonsAndPlaces()
    {
        SortedPersons = _scoreService.GetPersonsSortedByScore(ResultType, true);
        _scoreService.UpdateResultListPlacesForAllPersons();
        OnPropertyChanged(nameof(PodiumGoldStarts));
        OnPropertyChanged(nameof(PodiumSilverStarts));
        OnPropertyChanged(nameof(PodiumBronzeStarts));
    }
}