demo2025_products_tiron_baby/AddProduct.axaml.cs

using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using System;
using System.Linq;
using tiron_demo.Context;
using tiron_demo.Models;

namespace tiron_demo;

public partial class AddProduct : Window
{
    private float _minCostBackup;
    private Product _product;

    public AddProduct()
    {
        InitializeComponent();

        _product = new Product();
        _product.Articul = GenerateArticul();
        _minCostBackup = 0;

        ProductTypeComboBox.ItemsSource = Helper.context.ProductTypes;
        ProductPanel.DataContext = _product;
    }

    public AddProduct(Product product)
    {
        InitializeComponent();

        _product = product;
        _minCostBackup = product.MinCost;

        ProductTypeComboBox.ItemsSource = Helper.context.ProductTypes;
        ProductPanel.DataContext = _product;
    }

    private string GenerateArticul()
    {
        Random rnd = new Random();
        string articul = "";
        for (int i = 0; i < 7; i++)
        {
            articul += rnd.Next(10);
        }

        if (Helper.context.Products.Where(x => x.Articul == articul).Count() > 0)
        {
            articul = GenerateArticul();
        }

        return articul;
    }

    private void Button_Click_Back(object? sender, RoutedEventArgs args)
    {
        _product.MinCost = _minCostBackup;

        ProductsWindow productsWindow = new ProductsWindow();
        productsWindow.Show();
        Close();
    }

    private void Button_Click_Save(object? sender, RoutedEventArgs args)
    {
        if (_product.MinCost >= 0)
        {
            if (_product.Id == 0)
            {
                Helper.context.Products.Add(_product);
                Helper.context.SaveChanges();
            }
            else
            {
                Helper.context.Products.Update(_product);
                Helper.context.SaveChanges();
            }

            ProductsWindow productsWindow = new ProductsWindow();
            productsWindow.Show();
            Close();
        }
    }
}