using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using LehrerApp.Core.Services;

namespace LehrerApp.Desktop.ViewModels.ClassTeacher;

/// <summary>Dialog zum Anpassen der <see cref="PatternScoreWeights"/> für den "Gesamtbild"-Reiter
/// der Klassenlehreransicht — ursprünglich feste Konstanten, auf Nutzerwunsch jetzt einstellbar.</summary>
public partial class PatternScoreWeightsDialogViewModel : ObservableObject
{
    private readonly PatternScoreSettingsService _settings;

    [ObservableProperty] private double _unexcusedDayWeight;
    [ObservableProperty] private double _excusedDayWeight;
    [ObservableProperty] private double _lateDayWeight;
    [ObservableProperty] private double _negativeClassRegisterEntryWeight;
    [ObservableProperty] private double _concerningKeywordBonus;
    [ObservableProperty] private double _suspensionKeywordWeight;

    public PatternScoreWeightsDialogViewModel(PatternScoreSettingsService settings)
    {
        _settings = settings;
        var weights = settings.Load();
        UnexcusedDayWeight = weights.UnexcusedDayWeight;
        ExcusedDayWeight = weights.ExcusedDayWeight;
        LateDayWeight = weights.LateDayWeight;
        NegativeClassRegisterEntryWeight = weights.NegativeClassRegisterEntryWeight;
        ConcerningKeywordBonus = weights.ConcerningKeywordBonus;
        SuspensionKeywordWeight = weights.SuspensionKeywordWeight;
    }

    [RelayCommand]
    private void Save() => _settings.Save(new PatternScoreWeights
    {
        UnexcusedDayWeight = UnexcusedDayWeight,
        ExcusedDayWeight = ExcusedDayWeight,
        LateDayWeight = LateDayWeight,
        NegativeClassRegisterEntryWeight = NegativeClassRegisterEntryWeight,
        ConcerningKeywordBonus = ConcerningKeywordBonus,
        SuspensionKeywordWeight = SuspensionKeywordWeight,
    });
}