PIbd-42_Kashin_M.I_CPO_CourseWork/EmployeeManagmentView/Employee/Vacation/ViewVacationWindow.xaml.cs

using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml;
using EmployeeManagmentBusinessLogic.BusinessLogic;
using EmployeeManagmentContracts.BusinessLogicContracts;
using EmployeeManagmentContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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.IO;
using Microsoft.Win32;

namespace EmployeeManagmentView.Employee.Vacation
{
    /// <summary>
    /// Логика взаимодействия для ViewVacationWindow.xaml
    /// </summary>
    public partial class ViewVacationWindow : Window
    {

        private readonly IVacationLogic _vacationLogic;
        private readonly IEmployeeLogic _employeeLogic;
        private readonly IPhisicalPersonLogic _phisicalPersonLogic;
        private IEnumerable<VacationViewModel> _allVacations;
        private List<EmployeeViewModel> _employees;

        public ViewVacationWindow(IVacationLogic vacationLogic, IEmployeeLogic employeeLogic, IPhisicalPersonLogic phisicalPersonLogic)
        {
            _vacationLogic = vacationLogic;
            _employeeLogic = employeeLogic;
            _phisicalPersonLogic = phisicalPersonLogic;
            InitializeComponent();
            LoadVacations();
        }

        private void LoadVacations()
        {
            _allVacations = _vacationLogic.GetFullList(); // Загрузка всех данных
            VacationsDataGrid.ItemsSource = _allVacations;
        }

        private void ExportToExcelButton_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                var vacations = _vacationLogic.GetFullList();

                if (vacations == null || !vacations.Any())
                {
                    MessageBox.Show("Нет данных для экспорта.", "Внимание", MessageBoxButton.OK, MessageBoxImage.Information);
                    return;
                }

                // Открытие диалогового окна для сохранения файла
                SaveFileDialog saveFileDialog = new SaveFileDialog
                {
                    Filter = "Excel файлы (*.xlsx)|*.xlsx",
                    Title = "Сохранить отчет об отпусках",
                    FileName = "Отчет_отпуска.xlsx"
                };

                if (saveFileDialog.ShowDialog() == true)
                {
                    string filePath = saveFileDialog.FileName;  // Путь и имя файла
                    GenerateExcelReport(filePath, vacations);  // Генерация отчета
                    MessageBox.Show($"Отчет успешно сохранен: {filePath}", "Успех", MessageBoxButton.OK, MessageBoxImage.Information);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Ошибка экспорта: {ex.Message}", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }

        private void GenerateExcelReport(string filePath, List<VacationViewModel> vacations)
        {
            using (SpreadsheetDocument document = SpreadsheetDocument.Create(filePath, SpreadsheetDocumentType.Workbook))
            {
                // Создаем Workbook
                WorkbookPart workbookPart = document.AddWorkbookPart();
                workbookPart.Workbook = new Workbook();

                // Создаем Worksheet
                WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
                worksheetPart.Worksheet = new Worksheet(new SheetData());

                // Добавляем лист в Workbook
                Sheets sheets = document.WorkbookPart.Workbook.AppendChild(new Sheets());
                Sheet sheet = new Sheet()
                {
                    Id = document.WorkbookPart.GetIdOfPart(worksheetPart),
                    SheetId = 1,
                    Name = "Отпуска"
                };
                sheets.Append(sheet);

                // Получаем SheetData
                SheetData sheetData = worksheetPart.Worksheet.GetFirstChild<SheetData>();

                // Заполняем заголовки
                Row headerRow = new Row();
                headerRow.Append(
                    CreateTextCell("A", "ID"),
                    CreateTextCell("B", "Сотрудник"),
                    CreateTextCell("C", "Дата начала"),
                    CreateTextCell("D", "Дата окончания"),
                    CreateTextCell("E", "Статус")
                );
                sheetData.AppendChild(headerRow);

                // Заполняем данные
                foreach (var vacation in vacations)
                {
                    Row row = new Row();
                    row.Append(
                        CreateTextCell("A", vacation.Id.ToString()),
                        CreateTextCell("B", vacation.EmployeeName),
                        CreateTextCell("C", vacation.StartData.ToString("dd.MM.yyyy")),
                        CreateTextCell("D", vacation.EndData.ToString("dd.MM.yyyy")),
                        CreateTextCell("E", vacation.Passed ? "Проведен" : "Не проведен")
                    );
                    sheetData.AppendChild(row);
                }

                workbookPart.Workbook.Save();
            }
        }

        // Метод для создания текстовой ячейки
        private Cell CreateTextCell(string columnName, string text)
        {
            return new Cell
            {
                DataType = CellValues.String,
                CellReference = columnName,
                CellValue = new CellValue(text)
            };
        }


        private void SearchTextBox_TextChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
        {
            string query = SearchTextBox.Text.ToLower();

            if (string.IsNullOrWhiteSpace(query))
            {
                // Отображаем все записи
                VacationsDataGrid.ItemsSource = _allVacations;
            }
            else
            {
                // Фильтрация по всем полям сущности
                var filteredList = _allVacations.Where(vac =>
                    (vac.EmployeeName?.ToLower().Contains(query) ?? false) ||
                    (vac.StartData.ToString("dd.MM.yyyy").Contains(query)) ||
                    (vac.EndData.ToString("dd.MM.yyyy").Contains(query)) ||
                    (vac.Passed.ToString().ToLower().Contains(query))
                ).ToList();

                VacationsDataGrid.ItemsSource = filteredList;
            }
        }
    }
}