WhiteErase/WriteErase/ClassPages/PageEditProduct.xaml.cs

using System;
using System.Collections.Generic;
using System.Data.Entity.Migrations;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using WriteErase.ClassBase;
using WriteErase.ClassData;

namespace WriteErase.ClassPages
{
    /// <summary>
    /// Логика взаимодействия для PageEditProduct.xaml
    /// </summary>
    public partial class PageEditProduct : Page
    {
        Product product = new Product();
        bool edit = false;
        public PageEditProduct()
        {
            InitializeComponent();
            init();
        }
        public PageEditProduct(string article)
        {
            InitializeComponent();
            product = BaseConnection.kotBase.Product.First(tb => tb.ProductArticleNumber == article);
            edit = true;
            init();
        }
        private void init()
        {
            cbCategory.ItemsSource = BaseConnection.kotBase.ProductCategory.Select(tb => tb.CategoryName).ToList();
            cbManufactured.ItemsSource = BaseConnection.kotBase.ProductManufacturer.Select(tb => tb.ManufacturerName).ToList();
            cbSuplier.ItemsSource = BaseConnection.kotBase.ProductSuplier.Select(tb => tb.SuplierName).ToList();

            if (edit)
            {
                tbkHeader.Text = "Редактирование товара";
                tbxArticle.Text = product.ProductArticleNumber;
                tbxName.Text = product.ProductName;
                btnGenerate.IsEnabled = false;
                tbxDescription.Text = product.ProductDescription;
                tbxCost.Text = product.ProductCost.ToString();
                tbxDiscount.Text = product.ProductDiscountMax.ToString();
                tbxCount.Text = product.ProductQuantityInStock.ToString();
                cbCategory.SelectedItem = product.ProductCategory.CategoryName;
                cbManufactured.SelectedItem = product.ProductManufacturer.ManufacturerName;
                cbSuplier.SelectedItem = product.ProductSuplier.SuplierName;
            }
            else
            {
                tbkHeader.Text = "Добавление товара";
                GenerateClick(null, null);
            }

        }
     
        private void btnBackClick(object sender, RoutedEventArgs e)
        {
            switch (MessageBox.Show("При выходе ввыеденные вами данные не сохраняться, Вы действительно хотите выйти?", "Выход из приложения", MessageBoxButton.YesNo, MessageBoxImage.Question))
            {
                case MessageBoxResult.Yes:
                    {
                        MainFrame.mainFrame.Navigate(new PageMain());
                        break;
                    }
                case MessageBoxResult.No:
                    {
                        break;
                    }
            }
        }

        private void btnSaveClick(object sender, RoutedEventArgs e)
        {
            string mess = check();
            if(mess == "")
            {
                try
                {
                    if (!edit)
                    {
                        product.ProductArticleNumber = tbxArticle.Text;
                        product.ProductStatus = "1";
                        product.ProductPhoto = null;
                    }
                        
                    product.ProductName = tbxName.Text;
                    product.ProductDescription = tbxDescription.Text;
                    product.ProductCost = Convert.ToDecimal(tbxCost.Text);
                    product.ProductDiscountMax = Convert.ToDouble(tbxDiscount.Text);
                    product.ProductQuantityInStock = int.Parse(tbxCount.Text);
                    product.CategoryId = BaseConnection.kotBase.ProductCategory.
                        First(tb => tb.CategoryName == cbCategory.SelectedValue.ToString()).CategoryId;
                    product.ManufacturerId = BaseConnection.kotBase.ProductManufacturer.
                        First(tb => tb.ManufacturerName == cbManufactured.SelectedValue.ToString()).ManufacturerID;
                    product.SuplierId = BaseConnection.kotBase.ProductSuplier.
                        First(tb => tb.SuplierName == cbSuplier.SelectedValue.ToString()).SuplierId;

                    if(edit)
                        BaseConnection.kotBase.Product.AddOrUpdate(product);
                    else
                        BaseConnection.kotBase.Product.Add(product);

                    BaseConnection.kotBase.SaveChanges();
                    MessageBox.Show("Изменения сохранены");
                    MainFrame.mainFrame.Navigate(new PageMain());
                }
                catch(Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                }
            }
            else
            {
                MessageBox.Show(mess, "Ошибки заполнения формы");
            }
        }
        private string check()
        {
            string mess = "";
            Regex number = new Regex("^\\d{1,}$");
            Regex cost = new Regex("^\\d{1,}([\\.\\,]\\d{1,})?$");

            if (string.IsNullOrWhiteSpace(tbxName.Text))
                mess += "Поле Наименование не может быть пустым\n";

            if (string.IsNullOrWhiteSpace(tbxDescription.Text))
                mess += "Поле Описание не может быть пустым\n";

            if (!cost.IsMatch(tbxCost.Text.Trim()) || string.IsNullOrWhiteSpace(tbxCost.Text))
                mess += "Поле Цена должно бать числом\n";

            if (!number.IsMatch(tbxDiscount.Text.Trim()) || string.IsNullOrWhiteSpace(tbxDiscount.Text))
                mess += "Поле Скидка должно бать числом\n";

            if (!number.IsMatch(tbxCount.Text.Trim()) || string.IsNullOrWhiteSpace(tbxCount.Text))
                mess += "Поле Количество должно бать числом\n";
            
            if (cbCategory.SelectedIndex < 0)
                mess += "Неоходимо выбрать Категорию\n";

            if (cbManufactured.SelectedIndex < 0)
                mess += "Неоходимо выбрать Производителя\n";

            if (cbSuplier.SelectedIndex < 0)
                mess += "Неоходимо выбрать Постовщика";

            return mess;
        }
        private void GenerateClick(object sender, RoutedEventArgs e)
        {
            //A297U6
            string article = "";
            Random rnd = new Random();
            while (true)
            {
                article = ((char)rnd.Next(65, 81)).ToString() +
                    rnd.Next(0, 10) + rnd.Next(0, 10) + rnd.Next(0, 10) +
                    ((char)rnd.Next(65, 81)).ToString() + rnd.Next(0, 10);
                if (BaseConnection.kotBase.Product.Where(tb => tb.ProductArticleNumber == article).Count() == 0)
                    break;
                article = "";
            }

            tbxArticle.Text = article;
        }
    }
}