inabox/inabox.wpf/Converters/MultiConverters/Calculator/StringCalculator.cs

using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;

namespace InABox.WPF
{
    // public class StringCalculator : AbstractCalculator<string, StringCombinerFunction>
    // {
    //     
    //     public string Separator { get; set; }
    //     protected override string Combine(string current, string next)
    //     {
    //         return Function switch
    //         {
    //             StringCombinerFunction.Append => string.Join(Separator, new [] { current, next } ),
    //         _ => current
    //         };
    //     }
    // }
    
    public class StringCalculatorFunction : AbstractCalculatorFunction<string, StringCalculatorType>
    {
        public string Separator { get; set; }
        protected override string Calculate(string current, string next, StringCalculatorType type)
        {
            var result = type switch
            {
                StringCalculatorType.Append => string.Join(Separator, new [] { current, next } ),
                _ => current
            };
            return result;
        }
    }
    
    public class StringCalculator : AbstractCalculator<string, StringCalculatorFunction, StringCalculatorType>
    {
        
        public string Separator
        {
            get => Function.Separator;
            set => Function.Separator = value;
        }
        
    }
}