PersonStartToCompetitionIDStringConverter.cs

using System.Globalization;
using System.Windows.Data;
using Vereinsmeisterschaften.Core.Models;
using Vereinsmeisterschaften.Properties;
 
namespace Vereinsmeisterschaften.Converters;

[ValueConversion(typeof(Person), typeof(string))]
public class PersonStartToCompetitionIDStringConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if(value != null && value is Person personVal && parameter is SwimmingStyles swimmingStyle)
        {
            int competitionID = personVal.AvailableCompetitionsIDs[swimmingStyle];
            return competitionID == -1 ? Resources.CompetitionMissingString : ($"{Resources.CompetitionIDString} : {competitionID}");
        }
        return null;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}