SAE-2.01/MCTG/ConsoleApp/Menu/Selector.cs

using Model;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp.Menu
{
    internal class Selector<T> : IEquatable<Selector<T>>
        where T : notnull
    {
        private string _line = "";

        public string Line { 
            get => _line;
            private set
            {
                if (string.IsNullOrEmpty(value))
                    _line = "no data";
                else
                    _line = value;
            }
        }
        public T Item { get; private set; }

        public Selector(T item, string line = "")
        {
            Line = line;
            Item = item;
        }

        public virtual bool Equals(Selector<T>? other)
        {
            if (other == null) return false;
            if (other == this) return true;
            return other.Line.Equals(this.Line);
        }

        public override bool Equals(object? obj)
        {
            var item = obj as Selector<T>;
            if (item == null) return false;
            return Equals(obj);
        }

        public override int GetHashCode()
        {
            return Line.GetHashCode();
        }
    }
}