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;
using Diplom_O.DataBase;

namespace Diplom_O.SupportForms
{
	public partial class WorkShtatForm : Form
	{
		public bool isCanceled = false;
		private Shtat shtat = null;

		public WorkShtatForm(Shtat shtat = null)
		{
			InitializeComponent();
			try
			{
				if (shtat != null)
				{
					this.shtat = shtat;
					workButton.Text = "Изменить";
					doljBox.Text = shtat.Doljnost;
					kolvoBox.Text = shtat.Size.ToString();
					busySizeLabel.Text = "Занято: " + (shtat.Size - FuncDB.ShtatFreeSpaceById(shtat.Id));
					busySizeLabel.Visible = true;
				}
			}
			catch (Exception e)
			{
				this.ShowError(errorLabel, e.Message);
				workButton.Enabled = false;
			}
		}

		private void workButton_Click(object sender, EventArgs e)
		{
			try
			{
				if (string.IsNullOrEmpty(doljBox.Text))
					throw new Exception("Ошибка указания должности.");
				if (!int.TryParse(kolvoBox.Text, out int kolvo))
					throw new Exception("Ошибка указания количества.");
				if (shtat == null)
				{
					var s = new Shtat() { Doljnost = doljBox.Text, Size = kolvo };
					FuncDB.ShtatAdd(s);
				}
				else
				{
					shtat.Doljnost = doljBox.Text;
					shtat.Size = kolvo;
					FuncDB.ShtatChange(shtat);
				}
				this.Close();
			}
			catch (Exception ex) { this.ShowError(errorLabel, ex.Message); }
		}
		private void canceledButton_Click(object sender, EventArgs e)
		{
			isCanceled = true;
			this.Close();
		}
	}
}