using StudentEnrollmentContracts.BindingModels;
using StudentEnrollmentContracts.BusinessLogicContracts;
using StudentEnrollmentContracts.SearchModels;
using StudentEnrollmentDatabaseImplement.Models;
using StudentEnrollmentDataModels.Models;
using System.Windows.Forms;

namespace StudentEnrollmentView
{
	public partial class FormExamPoints : Form
	{
		public int? Id { get; set; }
		public IExamPointsModel ExamPoints { get; set;  }
		private IExamPointsLogic _logic;
		public FormExamPoints(IExamPointsLogic logic)
		{
			_logic = logic;
			InitializeComponent();
		}

		private void buttonSave_Click(object sender, EventArgs e)
		{
			if (string.IsNullOrEmpty(textBoxFirstExamPoints.Text))
			{
				MessageBox.Show("Заполните баллы за первый экзамен", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}
			if (string.IsNullOrEmpty(textBoxSecondExamPoints.Text))
			{
				MessageBox.Show("Заполните баллы за второй экзамен", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}
			if (string.IsNullOrEmpty(textBoxThirdExamPoints.Text))
			{
				MessageBox.Show("Заполните баллы за третий экзамен", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}
			try
			{
				var model = new ExamPointsBindingModel
				{
					Id = Id ?? 0,
					FirstExamPoints = Convert.ToInt32(textBoxFirstExamPoints.Text),
					SecondExamPoints = Convert.ToInt32(textBoxSecondExamPoints.Text),
					ThirdExamPoints = Convert.ToInt32(textBoxThirdExamPoints.Text),
					AddPoints = textBoxAddPoints.Text != string.Empty ? Convert.ToInt32(textBoxAddPoints.Text) : 0,
					Summary = CalcSum(),
				};
				var operationResult = _logic.Create(model, true);
				if (operationResult == null)
				{
					throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
				}
				MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
				DialogResult = DialogResult.OK;
				ExamPoints = operationResult;
				Close();
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
			}
		}

		private void buttonCancel_Click(object sender, EventArgs e)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}

		private int CalcSum()
		{
			return Convert.ToInt32(textBoxFirstExamPoints.Text)
				+ Convert.ToInt32(textBoxSecondExamPoints.Text)
				+ Convert.ToInt32(textBoxThirdExamPoints.Text)
				+ (textBoxAddPoints.Text != string.Empty ? Convert.ToInt32(textBoxAddPoints.Text) : 0);
		}

		private void FormExamPoints_Load(object sender, EventArgs e)
		{
			LoadData();
		}
		private void LoadData()
		{
			if (Id != 0)
			{
				try
				{
					var view = _logic.ReadElement(new ExamPointsSearchModel
					{
						exampoints_id = Id,
					});
					textBoxFirstExamPoints.Text = view.FirstExamPoints.ToString();
					textBoxSecondExamPoints.Text = view.SecondExamPoints.ToString();
					textBoxThirdExamPoints.Text = view.ThirdExamPoints.ToString();
					textBoxAddPoints.Text = view.AddPoints.ToString();

				}
				catch (Exception ex)
				{
					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
				}
			}
		}
	}
}