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

namespace WinForm
{
    public partial class NumberTextBox : UserControl
    {
        //Шаблон для textbox
        private string? pattern;
        private string example = "+7XXXXXXXXXX";

        public NumberTextBox()
        {
            InitializeComponent();
        }

        //Публичное свойство для получения и заполнения шаблона
        public string? Pattern
        {
            get { return pattern; }
            set { pattern = value; }
        }

        public string? TextBoxValue
        {
            get
            {
                if (new Regex(Pattern).IsMatch(textBox.Text))
                {
                    return textBox.Text;
                }
                return null;
            }
            set
            {
                if (new Regex(Pattern).IsMatch(value))
                {
                    textBox.Text = value;
                }

            }
        }

        //Метод для заполнения примера
        public void SetExample(string str)
        {
            if (new Regex(Pattern).IsMatch(str))
            {
                example = str;
            }
        }

        private void TextBox_Enter(object sender, EventArgs e)
        {
            int VisibleTime = 3000;
            ToolTip tt = new ToolTip();
            tt.Show(example, textBox, 0, 25, VisibleTime);
        }

        private EventHandler _explicitEvent;
        public event EventHandler ExplicitEvent
        {
            add
            {
                _explicitEvent += value;
            }
            remove
            {
                _explicitEvent -= value;
            }
        }

        private void TextBox_TextChanged(object sender, EventArgs e)
        {
            _explicitEvent?.Invoke(sender, e);
        }
    }
}