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 WorkerForm : Form
	{
		private Chel chel = null;
		private void ResetLinkFIO()
    {
			if (chel == null)
      {
				linkSelectFIO.Text = "Выбрать человека...";
				return;
      }
			var res = chel.FName.ToString() + " " +
							chel.SName[0].ToString() + "." +
								((!string.IsNullOrEmpty(chel.TName)) ?
									chel.TName[0].ToString() + "." : "");
			linkSelectFIO.Text = res;
		}

		private int? shtatId = null;
		private void ResetLinkShtat()
		{
			if (shtatId == null)
			{
				linkDolj.Text = "Выбрать должность...";
				return;
			}
			var res = FuncDB.ShtatGetById(shtatId.Value)?.Doljnost;
			linkDolj.Text = res;
		}

		public bool isCanceled = false;
		private Rabotnik rabotnik = null;
		public WorkerForm(Rabotnik rabotnik = null, bool create = false)
		{
			InitializeComponent();
      try
			{
				ResetLinkFIO();
				ResetLinkShtat();
				tabNumBox.Text = "";
				dateTimePicker1.Value = DateTime.Now;
				dateTimePicker2.Value = DateTime.Now;
				
				if (rabotnik == null) return;
				

				chel = FuncDB.ChelGetById(rabotnik.ChelId);
				ResetLinkFIO();
				linkSelectFIO.Enabled = false;

				if (create)
					return;

				this.rabotnik = rabotnik;
				workButton.Text = "Изменить";
				chel = FuncDB.ChelGetById(rabotnik.ChelId);
				ResetLinkFIO();
				if (checkBox2.Checked)
					shtatId = null;
				else
					shtatId = FuncDB.ShtatGetById(rabotnik.ShtatId.Value).Id;
				ResetLinkShtat();
				tabNumBox.Text = rabotnik.TabNum;
				dateTimePicker1.Value = rabotnik.Start;
				if (rabotnik.End.HasValue)
				{
					checkBox1.Checked = false;
					dateTimePicker2.Value = rabotnik.End.Value;
				}
				else
					checkBox1.Checked = true;
			}
			catch (Exception e)
			{
				this.ShowError(errorLabel, e.Message);
				workButton.Enabled = false;
			}
		}

		private void linkSelectFIO_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
		{
			var form = new ChelForm(true);
			form.ShowDialog();
			if (form.isCanceled)
				chel = null;
      else
				chel = form.formResult;
			ResetLinkFIO();
		}
		private void linkDolj_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
		{
			var form = new ShtatForm(true);
			form.ShowDialog();
			if (form.isCanceled)
				shtatId = null;
			else
				shtatId = form.formResult.Id;
			ResetLinkShtat();
		}
		private void workButton_Click(object sender, EventArgs e)
		{
      try
      {
				if (chel == null)
					throw new Exception("Не выбран человек.");
				if (!checkBox2.Checked && !shtatId.HasValue)
					throw new Exception("Не выбрана должность.");
				DateTime start = dateTimePicker1.Value;
				start = new DateTime(start.Year, start.Month, start.Day, 0, 0, 0);
				DateTime? end = null;
				if (!checkBox1.Checked)
				{
					end = dateTimePicker2.Value;
					end = new DateTime(end.Value.Year, end.Value.Month, end.Value.Day, 23, 59, 59);
				}

				var _rabotnik = new Rabotnik()
				{
					ChelId = chel.Id,
					ShtatId = checkBox2.Checked ? null : shtatId,
					AnotherWork = checkBox2.Checked,
					TabNum = checkBox2.Checked ? "" : tabNumBox.Text,
					Start = start,
					End = end
				};
				if (rabotnik == null)
					FuncDB.RabotnikAdd(_rabotnik);
				else
        {
					_rabotnik.Id = rabotnik.Id;
					FuncDB.RabotnikChange(_rabotnik);
        }
				this.Close();
      }
			catch (Exception ex)
			{
				this.ShowError(errorLabel, ex.Message);
			}
		}
		private void canceledButton_Click(object sender, EventArgs e)
		{
			isCanceled = true;
			this.Close();
		}

    private void checkBox1_CheckedChanged(object sender, EventArgs e)
    {
			dateTimePicker2.Enabled = !checkBox1.Checked;
    }

    private void checkBox2_CheckedChanged(object sender, EventArgs e)
    {
			linkDolj.Enabled = !checkBox2.Checked;
			tabNumBox.Enabled = !checkBox2.Checked;
    }
  }
}