using AccountingWarehouseProductsBusinessLogic.BusinessLogic;
using AccountingWarehouseProductsContracts.BindingModels;
using AccountingWarehouseProductsContracts.BusinessLogicsContracts;
using AccountingWarehouseProductsContracts.SearchModels;
using AccountingWarehouseProductsDatabaseImplement.Models;
using AccountingWarehouseProductsDataModels.Enums;
using AccountingWarehouseProductsDataModels.Models;
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;
using System.Windows.Forms.VisualStyles;

namespace AccountingWarehouseProductsView
{
    public partial class FormCreateOrder : Form
    {
        private readonly ISupplierLogic _logicS;

        private readonly IProductLogic _logicP;

        private readonly IOrderLogic _logicO;

        private int? _id;

        private Dictionary<int, (IProductModel, int)> _orderProduct;

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

        public FormCreateOrder(ISupplierLogic logicS, IOrderLogic logicO, IProductLogic logicP)
        {
            InitializeComponent();
            _logicS = logicS;
            _logicP = logicP;
            _logicO = logicO;
            _orderProduct = new Dictionary<int, (IProductModel, int)>();
            LoadData();
        }

        private void FormCreateOrder_Load(object sender, EventArgs e)
        {
            LoadData();
        }

        private void LoadData()
        {
            try
            {
                var list = _logicP.ReadList(null);
                if (list != null)
                {
                    comboBoxProduct.DisplayMember = "ProductName";
                    comboBoxProduct.ValueMember = "Id";
                    comboBoxProduct.DataSource = list;
                    comboBoxProduct.SelectedItem = null;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            try
            {
                var list = _logicS.ReadList(null);
                if (list != null)
                {
                    comboBoxSupplier.DisplayMember = "SupplierName";
                    comboBoxSupplier.ValueMember = "Id";
                    comboBoxSupplier.DataSource = list;
                    comboBoxSupplier.SelectedItem = null;
                }

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

        private void CalcSum()
        {
            if (comboBoxProduct.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
            {
                try
                {
                    int id = Convert.ToInt32(comboBoxProduct.SelectedValue);
                    var product = _logicP.ReadElement(new ProductSearchModel { Id = id });
                    int count = Convert.ToInt32(textBoxCount.Text);
                    textBoxSum.Text = Math.Round(count * (product?.Cost ?? 0), 2).ToString();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

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

        private void comboBoxProduct_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 (comboBoxProduct.SelectedValue == null)
            {
                MessageBox.Show("Выберите продукт", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxSupplier.SelectedValue == null)
            {
                MessageBox.Show("Выберите поставщика", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            try
            {
                var model = new OrderBindingModel
                {
                    Id = _id ?? 0,
                    ProductId = Convert.ToInt32(comboBoxProduct.SelectedValue),
                    SupplierId = Convert.ToInt32(comboBoxSupplier.SelectedValue),
                    DateofOrder = DateTime.Now,
                    Status = OrderStatus.Заказан,
                    ProductName = comboBoxProduct.Text,
                    Count = Convert.ToInt32(textBoxCount.Text),
                    SupplierName = comboBoxSupplier.Text,
                    Sum = Convert.ToDouble(textBoxSum.Text),
                    OrderProduct = _orderProduct     
                };
                var operationResult = _id.HasValue ? _logicO.Update(model) : _logicO.Create(model);
                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)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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