using Microsoft.VisualBasic.FileIO;
using ProjectGarage.Entities;
using ProjectGarage.Entities.Enums;
using ProjectGarage.Repositories;
using ProjectGarage.Repositories.Implementations;
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;

namespace ProjectGarage.Forms
{
    public partial class FormFuel : Form
    {
        private readonly IFuelRepository _fuelRepository;
        private int? _fuelId;

        public int Id
        {
            set
            {
                try
                {
                    var fuel = _fuelRepository.ReadFuelByID(value);
                    if (fuel == null)
                    {
                        throw new InvalidDataException(nameof(fuel));
                    }
                    foreach (FuelType elem in Enum.GetValues(typeof(FuelType)))
                    {
                        if ((elem & fuel.Type) != 0)
                        {
                            checkedListBoxFuel.SetItemChecked(checkedListBoxFuel.Items.IndexOf(elem), true);
                        }
                    }
                    textBoxFuelName.Text = fuel.Name;
                    _fuelId = value;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
                }
            }
        }

        public FormFuel(IFuelRepository fuelRepository)
        {
            InitializeComponent();
            _fuelRepository = fuelRepository ?? throw new ArgumentNullException(nameof(fuelRepository));
            foreach (var elem in Enum.GetValues(typeof(FuelType)))
            {
                checkedListBoxFuel.Items.Add(elem);
            }
        }

        private void ButtonFuelSave_Click(object sender, EventArgs e)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(textBoxFuelName.Text) ||
                    checkedListBoxFuel.CheckedItems.Count == 0)
                {
                    throw new Exception("Имеются незаполненные поля");
                }
                if (_fuelId.HasValue)
                {
                    _fuelRepository.UpdateFuel(CreateFuel(_fuelId.Value));
                }
                else
                {
                    _fuelRepository.CreateFuel(CreateFuel(0));
                }
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при сохранении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void ButtonFuelCancel_Click(object sender, EventArgs e) => Close();

        private Fuel CreateFuel(int id)
        {
            FuelType fuelType = FuelType.None;
            foreach (var elem in checkedListBoxFuel.CheckedItems)
            {
                fuelType |= (FuelType)elem;
            }
            return Fuel.CreateFuel(id, textBoxFuelName.Text, fuelType, Convert.ToInt32(numericUpDownFuelPrice.Value));
        }
    }
}