using IceCreamShopContracts.BindingModels;
using IceCreamShopContracts.BusinessLogicsContracts;
using IceCreamShopContracts.SearchModels;
using IceCreamShopContracts.ViewModels;
using Microsoft.Extensions.Logging;

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

        private readonly IIceCreamLogic _logicIC;

        private readonly IOrderLogic _logicO;

        private readonly IClientLogic _logicC;

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

        private void FormCreateOrder_Load(object sender, EventArgs e)
        {
            _logger.LogInformation("Loading ice cream for order");
            try
            {
                var iceCreamList = _logicIC.ReadList(null);
                if (iceCreamList != null)
                {
                    comboBoxIceCream.DisplayMember = "IceCreamName";
                    comboBoxIceCream.ValueMember = "Id";
                    comboBoxIceCream.DataSource = iceCreamList;
                    comboBoxIceCream.SelectedItem = null;
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error during loading ice cream for order");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            _logger.LogInformation("Loading clients for order");
            try
            {
                var clientList = _logicC.ReadList(null);
                if (clientList != null)
                {
                    comboBoxClient.DisplayMember = "ClientFIO";
                    comboBoxClient.ValueMember = "Id";
                    comboBoxClient.DataSource = clientList;
                    comboBoxClient.SelectedItem = null;
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error during loading clients for order");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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

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

        private void ComboBoxIceCream_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 (comboBoxIceCream.SelectedValue == null)
            {
                MessageBox.Show("Выберите мороженое", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxClient.SelectedValue == null)
            {
                MessageBox.Show("Выберите клиента", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _logger.LogInformation("Order creation");
            try
            {
                var operationResult = _logicO.CreateOrder(new OrderBindingModel
                {
                    IceCreamId = Convert.ToInt32(comboBoxIceCream.SelectedValue),
                    ClientId = Convert.ToInt32(comboBoxClient.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();
        }
    }
}