using System;
using System.Drawing;
using System.Windows.Forms;

namespace DesktopTools.BaseControls
{
	public partial class BaseControlInt : AbstractBaseControl
	{
		public BaseControlInt(string propertyName) : base(propertyName)
		{
			InitializeComponent();
			checkBoxNullable.Visible = false;
			panelControl.Controls.Add(checkBoxNullable);
			checkBoxNullable.CheckedChanged += (object sender, EventArgs e) =>
			{
				numericUpDown.Enabled = !(sender as CheckBox).Checked;
				CallOnValueChangeEvent();
			};

			panelControl.Controls.Add(numericUpDown);
			numericUpDown.ValueChanged += (object sender, EventArgs e) => { CallOnValueChangeEvent(); };
			_originalValue = 0;
		}

		public override void SetReadOnly(bool readOnly)
		{
			numericUpDown.Enabled = !readOnly;
			checkBoxNullable.Enabled = !readOnly;
		}

		public override void SetValueToControl(object value)
		{
			base.SetValueToControl(value);
			if (value != null)
			{
				numericUpDown.Value = Convert.ToInt32(value);
			}
		}

		public override void DropValue()
		{
			numericUpDown.Value = _originalValue != null ? Convert.ToInt32(_originalValue) : 0;
		}

		public override bool CheckValue()
		{
			if (_mustCheckValue && checkBoxNullable.Checked)
			{
				BackColor = Color.OrangeRed;
				return false;
			}
			return true;
		}

		protected override object GetValueFromControl()
		{
			if (_mustCheckValue && checkBoxNullable.Checked)
			{
				throw new ArgumentNullException($"Поле свойства '{labelTitle.Text}' должно быть заполнено");
			}
			return checkBoxNullable.Checked? null : Convert.ToInt32(numericUpDown.Value);
		}
	}
}