using FoodOrdersContracts.BindingModels;
using FoodOrdersContracts.BusinessLogicsContracts;
using FoodOrdersContracts.SearchModels;
using FoodOrdersContracts.ViewModels;
using Microsoft.Extensions.Logging;
using Microsoft.VisualBasic.Logging;
using System.Windows.Forms;

namespace FoodOrdersView
{
    public partial class FormCreateOrder : Form
    {
        private readonly ILogger _logger;

        private readonly IDishLogic _logicIC;

        private readonly IOrderLogic _logicO;

        public FormCreateOrder(ILogger<FormCreateOrder> logger, IDishLogic logicIC, IOrderLogic logicO)
        {
            InitializeComponent();
            _logger = logger;
            _logicIC = logicIC;
            _logicO = logicO;
        }

        private void FormCreateOrder_Load(object sender, EventArgs e)
        {
            _logger.LogInformation("Загрузка блюда для заказа");
            try
            {
                var FoodList = _logicIC.ReadList(null);
                if (FoodList != null)
                {
                    comboBoxFood.DisplayMember = "DishName";
                    comboBoxFood.ValueMember = "Id";
                    comboBoxFood.DataSource = FoodList;
                    comboBoxFood.SelectedItem = null;
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка загрузки блюда для заказа");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void CalcSum()
        {
            if (comboBoxFood.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
            {
                try
                {
                    int id = Convert.ToInt32(comboBoxFood.SelectedValue);
                    var product = _logicIC.ReadElement(new DishSearchModel { Id = id });
                    int count = Convert.ToInt32(textBoxCount.Text);
                    textBoxSum.Text = Math.Round(count * (product?.Price ?? 0), 2).ToString();
                    _logger.LogInformation("Расчет суммы заказа");
                }
                catch (Exception ex)
                {
                    _logger.LogError(ex, "Ошибка расчета суммы заказа");
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        private void TextBoxCount_TextChanged(object sender, EventArgs e)
        {
            CalcSum();
        }

        private void ComboBoxFood_SelectedIndexChanged(object sender, EventArgs e)
        {
            CalcSum();
        }

        private void ButtonSave_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxCount.Text))
            {
                MessageBox.Show("Заполните поле Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxFood.SelectedValue == null)
            {
                MessageBox.Show("Выберите блюдо", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _logger.LogInformation("Order creation");
            try
            {
                var operationResult = _logicO.CreateOrder(new OrderBindingModel
                {
                    DishId = Convert.ToInt32(comboBoxFood.SelectedValue),
                    Count = Convert.ToInt32(textBoxCount.Text),
                    Sum = Convert.ToDouble(textBoxSum.Text)
                });
                if (!operationResult)
                {
                    throw new Exception("Ошибка при создании заказа. Дополнительная информация в логах.");
                }
                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Order creation error");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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