Blagodat/OknaFunciy/AddOtchotWindow.axaml.cs

using Avalonia.Controls;
using Avalonia.Interactivity;
using Demka_Snova_1.Hardik.Conect;
using Demka_Snova_1.Hardik.Conect.Dao;
using Demka_Snova_1.OknaRoley;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;
using iText.Kernel.Font;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using iText.IO.Font;
using iText.IO.Font.Constants;

namespace Demka_Snova_1;

public partial class AddOtchotWindow : Window
{
    private List<ordersDao> ordersList;
    private Random random;
    private int nextId = 1;

    public AddOtchotWindow()
    {
        InitializeComponent();
        random = new Random();
        LoadOrders();
    }

    private void LoadOrders()
    {
        using (var db = new DatabaseConnection())
        {
            ordersList = db.GetAllOrders();
            nextId = ordersList.Count > 0 ? ordersList.Max(o => o.ID) + 1 : 1;
        }
    }

    private void FormatOtchot_Click(object sender, RoutedEventArgs e)
    {
        string client = this.FindControl<TextBox>("ClientTextBox").Text;
        string usluga = this.FindControl<TextBox>("UslugaTextBox").Text;
        string prokatText = this.FindControl<TextBox>("ProkatTextBox").Text;

        if (!decimal.TryParse(prokatText, out decimal prokat))
        {
            ShowError("Íåêîððåêòíîå çíà÷åíèå äëÿ ïðîêàòà.");
            return;
        }

        string codeZakaz = $"{random.Next(10000, 99999)}.{random.Next(10000, 99999)}";

        ordersDao order = new ordersDao
        {
            ID = nextId++,
            CodeZakaz = codeZakaz,
            Date = DateOnly.FromDateTime(DateTime.Now),
            Time = TimeOnly.FromDateTime(DateTime.Now),
            CodeClient = client,
            Usluga = usluga,
            Status = "Íîâûé",
            DateClose = null,
            Prokat = prokat
        };

        SaveOrderToPdf(order);
        ordersList.Add(order);

        ClearFields();
        ShowError("Çàêàç óñïåøíî ñîçäàí è ñîõðàíåí â PDF!");
    }

    private void SaveOrderToPdf(ordersDao order)
    {
        string directoryPath = "C:/Users/PC/source/Dopolnenia/Fails/Doky";
        string pdfPath = Path.Combine(directoryPath, $"Order_{order.CodeZakaz}.pdf");

        
            if (!Directory.Exists(directoryPath))
            {
                Directory.CreateDirectory(directoryPath);
            }
            using (PdfWriter writer = new PdfWriter(pdfPath))
            using (PdfDocument pdf = new PdfDocument(writer))
            {
                Document document = new Document(pdf);
                PdfFont font;
                try
                {
                    font = PdfFontFactory.CreateFont("C:/Windows/Fonts/arial.ttf", PdfEncodings.IDENTITY_H);
                }
                catch
                {
                    font = PdfFontFactory.CreateFont(StandardFonts.HELVETICA);
                }

                document.Add(new Paragraph($"Îò÷åò î çàêàçå îò {order.Date}")
                    .SetTextAlignment(iText.Layout.Properties.TextAlignment.CENTER)
                    .SetFontSize(20)
                    .SetFont(font));

                var fields = new Dictionary<string, string>
            {
                {"Êîä çàêàçà", order.CodeZakaz},
                {"Êîä êëèåíòà", order.CodeClient},
                {"Óñëóãà", order.Usluga},
                {"Ïðîêàò", order.Prokat.ToString()},
                {"Äàòà", order.Date.ToString()},
                {"Âðåìÿ", order.Time.ToString()},
                {"Ñòàòóñ", order.Status}
            };

                foreach (var field in fields)
                {
                    document.Add(new Paragraph($"{field.Key}: {field.Value}").SetFont(font));
                }

                document.Close();
            }
        }

    private void ClearFields()
    {
        this.FindControl<TextBox>("ClientTextBox").Text = string.Empty;
        this.FindControl<TextBox>("UslugaTextBox").Text = string.Empty;
        this.FindControl<TextBox>("ProkatTextBox").Text = string.Empty;
    }

    private void Exitka(object sender, RoutedEventArgs e)
    {
        new AdminWindow().Show();
        this.Close();
    }

    private async void ShowError(string message)
    {
        var dialog = new Window
        {
            Title = "Îøèáêà",
            Content = message,
            Width = 300,
            Height = 200
        };
        await dialog.ShowDialog(this);
    }
}