using SushiBarBusinessLogic;
using SushiBarContracts.BindingModels;
using SushiBarContracts.SearchModels;
using SushiBarContracts.ViewModels;

namespace SushiBarView.Forms
{
    public partial class FormCreateCheque : Form
    {
        private readonly ChequeLogic _chequeLogic;
        private readonly CustomerLogic _customerLogic;

        private List<ChequeItemViewModel> ChequeItems;

        private int? _id;
        public int Id { set { _id = value; } }

        public FormCreateCheque(ChequeLogic ChequeLogic, CustomerLogic customerLogic)
        {
            InitializeComponent();

            _chequeLogic = ChequeLogic;
            _customerLogic = customerLogic;

            ChequeItems = new();
        }

        private void FormCreateCheque_Load(object sender, EventArgs e)
        {
            var List = _customerLogic.ReadList(null);
            if (List != null)
            {
                CustomerComboBox.DisplayMember = "Fio";
                CustomerComboBox.ValueMember = "Id";
                CustomerComboBox.DataSource = List;
                CustomerComboBox.SelectedItem = null;
            }

            if (_id.HasValue)
            {
                try
                {
                    var View = _chequeLogic.ReadElement(new ChequeSearchModel
                    {
                        Id = _id.Value
                    });

                    if (View != null)
                    {
                        CustomerComboBox.SelectedItem = View.CustomerId;
                        ChequeItems = View.ChequeItems.Select(x => x.Value).ToList();

                        CustomerComboBox.Enabled = false;
                        AddButton.Enabled = false;
                        SaveButton.Enabled = false;

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

        private void LoadData()
        {
            try
            {
                DataGridView.Rows.Clear();
                foreach (var ChequeItem in ChequeItems)
                {
                    DataGridView.Rows.Add(new object[] { ChequeItem.DishId, ChequeItem.DishName, ChequeItem.Count, ChequeItem.CookFio });
                }

                PriceTextBox.Text = CalcPrice().ToString();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void AddButton_Click(object sender, EventArgs e)
        {
            var Form = new FormCreateChequeItem(
                new DishLogic(new SushiBarDatabaseImplement.Storages.DishStorage()),
                new CookLogic(new SushiBarDatabaseImplement.Storages.CookStorage()));
            
            if (Form.ShowDialog() == DialogResult.OK)
            {
                if (Form.DishModel == null || Form.CookModel == null)
                {
                    return;
                }

                ChequeItems.Add(new ChequeItemViewModel
                {
                    DishId = Form.DishId,
                    DishName = Form.DishModel.DishName,
                    DishPrice = Form.DishModel.Price,
                    CookId = Form.CookId,
                    CookFio = Form.CookModel.Fio,
                    Count = Form.Count,
                });
                LoadData();
            }
        }

        private void SaveButton_Click(object sender, EventArgs e)
        {
            try
            {
                var Мodel = new ChequeBindingModel
                {
                    Id = 0,
                    ChequeItems = ChequeItems.Select(x => new ChequeItemBindingModel
                    {
                        DishId = x.DishId,
                        CookId = x.CookId,
                        Count = x.Count,
                    }).ToList(),
                    CustomerId = null,
                    OrderDate = DateTime.Now,
                    TotalSum = CalcPrice(),
                    PromotionId = null,
                };

                var OperationResult = _chequeLogic.CreateCheque(Мodel);

                if (!OperationResult)
                {
                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
                }

                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                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 double CalcPrice()
        {
            double Price = 0;

            foreach (var Elem in ChequeItems)
            {
                Price += Elem.DishPrice * Elem.Count;
            }

            return Math.Round(Price * 1.1, 2);
        }
    }
}