using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Components
{
    public partial class UserControlStringsListBox : UserControl
    {
        private event EventHandler? _listChanged;
        private event Action? _errorOccured;
        public string Error { get; private set; }
        public string ListElement
        {
            get
            {
                return listBoxStrings.SelectedItem?.ToString();
            }
            set
            {
                if (listBoxStrings.Items.Contains(value))
                {
                    listBoxStrings.SelectedItem = value;
                }
            }
        }
        public event EventHandler ListChanged
        {
            add { _listChanged += value; }
            remove { _listChanged -= value; }
        }
        public event Action AnErrorOccurred
        {
            add { _errorOccured += value; }
            remove { _errorOccured -= value; }
        }
        public UserControlStringsListBox()
        {
            InitializeComponent();
            Error = string.Empty;
        }

        public void AddList(List<string> l)
        {
            try
            {
                listBoxStrings.Items.AddRange(l.ToArray());
            }
            catch (Exception ex)
            {
                Error = ex.Message;
                _errorOccured?.Invoke();
            }
        }
        public void ClearList()
        {
            listBoxStrings.Items.Clear();
        }

        private void listBoxStrings_SelectedValueChanged(object sender, EventArgs e)
        {
            _listChanged?.Invoke(sender, e);
        }
    }
}