using GiftShopContracts.BusinessLogicsContracts;
using GiftShopContracts.ViewModels;
using Microsoft.Extensions.Logging;
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 GiftShopView
{
    public partial class FormShopReplenishment : Form
    {
        private readonly ILogger _logger;
        private readonly IShopLogic _ShopLogic;
        private readonly IGiftLogic _giftLogic;
        private readonly List<ShopViewModel>? _listShops;
        private readonly List<GiftViewModel>? _listGifts;
        public FormShopReplenishment(ILogger<FormShopReplenishment> logger, IShopLogic ShopLogic, IGiftLogic giftLogic)
        {
            InitializeComponent();
            _ShopLogic = ShopLogic;
            _giftLogic = giftLogic;
            _logger = logger;
            _listShops = ShopLogic.ReadList(null);
            if (_listShops != null)
            {
                shopNameComboBox.DisplayMember = "ShopName";
                shopNameComboBox.ValueMember = "Id";
                shopNameComboBox.DataSource = _listShops;
                shopNameComboBox.SelectedItem = null;
            }

            _listGifts = giftLogic.ReadList(null);
            if (_listGifts != null)
            {
                giftNameComboBox.DisplayMember = "GiftName";
                giftNameComboBox.ValueMember = "Id";
                giftNameComboBox.DataSource = _listGifts;
                giftNameComboBox.SelectedItem = null;
            }
        }

        private void SaveButton_Click(object sender, EventArgs e)
        {
            if (shopNameComboBox.SelectedValue == null)
            {
                MessageBox.Show("Выберите магазин", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            if (giftNameComboBox.SelectedValue == null)
            {
                MessageBox.Show("Выберите изделие", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            _logger.LogInformation("Добавление изделия в магазин");

            try
            {
                var gift = _giftLogic.ReadElement(new()
                {
                    Id = (int)giftNameComboBox.SelectedValue
                });

                if (gift == null)
                {
                    throw new Exception("Не найдено изделие. Дополнительная информация в логах.");
                }

                var resultOperation = _ShopLogic.AddGift(
                     model: new() { Id = (int)shopNameComboBox.SelectedValue },
                     gift: gift,
                     quantity: Convert.ToInt32(countTextBox.Text)
                );
                
                if (!resultOperation)
                {
                    throw new Exception("Ошибка при добавлении. Дополнительная информация в логах.");
                }

                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка сохранения изделия");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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