Aragas/Bannerlord.MBOptionScreen

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

namespace MCM.UI.Dropdown
{
    internal class MCMSelectorVM<TSelectorItemVM, TSelectorItemVMValueType> : MCMSelectorVM<TSelectorItemVM>
        where TSelectorItemVM : MCMSelectorItemVM<TSelectorItemVMValueType>
        where TSelectorItemVMValueType : class
    {
        public MCMSelectorVM(IEnumerable<TSelectorItemVMValueType> list, int selectedIndex)
        {
            Refresh(list, selectedIndex);
        }

        public void Refresh(IEnumerable<TSelectorItemVMValueType> list, int selectedIndex)
        {
            ItemList.Clear();

            _selectedIndex = -1;

            foreach (var @ref in list)
            {
                if (Activator.CreateInstance(typeof(TSelectorItemVM), @ref) is TSelectorItemVM val)
                    ItemList.Add(val);
            }

            HasSingleItem = ItemList.Count <= 1;

            SelectedIndex = selectedIndex;
        }
    }
}