Component-oriented-programming/LibraryWinFormsApp/FormMain.cs

using NPOI.HPSF;
using Plugins;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LibraryWinFormsApp
{
    public partial class FormMain : Form
    {
        private readonly Dictionary<string, IPluginsConvention> _plugins;
        private string _selectedPlugin;
        public FormMain()
        {
            InitializeComponent();
            _plugins = LoadPlugins();
            _selectedPlugin = string.Empty;
        }
        private Dictionary<string, IPluginsConvention> LoadPlugins()
        {
            Dictionary<string, IPluginsConvention> plugins = new();
            string currentDirectory = Directory
                .GetParent(Environment.CurrentDirectory)!
                .Parent!
                .Parent!
                .Parent!
                .FullName + "\\plugin";
            string[] dllFiles = Directory.GetFiles(currentDirectory, "*.dll", SearchOption.AllDirectories);
            foreach (string dllFile in dllFiles)
            {
                try
                {
                    Assembly assembly = Assembly.LoadFrom(dllFile);

                    Type[] types = assembly.GetTypes();

                    foreach (Type type in types)
                    {
                        if (typeof(IPluginsConvention).IsAssignableFrom(type) && !type.IsInterface)
                        {
                            var plugin = (IPluginsConvention)Activator.CreateInstance(type)!;

                            plugins.Add(plugin.PluginName, plugin);
                        }
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"Не удалось загрузить плагин {dllFile}: {ex.Message}");
                }
            }
            foreach (var plugin in plugins)
            {
                CreateMenuItem(plugin.Value.PluginName);
            }
            return plugins;
        }
        private void CreateMenuItem(string pluginName)
        {
            ToolStripMenuItem menuItem = new ToolStripMenuItem(pluginName);
            menuItem.Click += (object? sender, EventArgs a) =>
            {
                _selectedPlugin = pluginName;
                IPluginsConvention plugin = _plugins[pluginName];
                UserControl userControl = plugin.GetControl;
                if (userControl != null)
                {
                    panelControl.Controls.Clear();
                    plugin.ReloadData();
                    userControl.Dock = DockStyle.Fill;
                    panelControl.Controls.Add(userControl);
                }
            };
            ControlsStripMenuItem.DropDownItems.Add(menuItem);
        }
        private void FormMain_KeyDown(object sender, KeyEventArgs e)
        {
            if (string.IsNullOrEmpty(_selectedPlugin) ||
                !_plugins.ContainsKey(_selectedPlugin))
            {
                return;
            }
            if (!e.Control)
            {
                return;
            }
            switch (e.KeyCode)
            {
                case Keys.I:
                    ShowThesaurus();
                    break;
                case Keys.A:
                    AddNewElement();
                    break;
                case Keys.U:
                    UpdateElement();
                    break;
                case Keys.D:
                    DeleteElement();
                    break;
                case Keys.S:
                    CreateSimpleDoc();
                    break;
                case Keys.T:
                    CreateTableDoc();
                    break;
                case Keys.C:
                    CreateChartDoc();
                    break;
            }
        }
        private void ShowThesaurus()
        {
            _plugins[_selectedPlugin].GetThesaurus()?.Show();
        }
        private void AddNewElement()
        {
            var form = _plugins[_selectedPlugin].GetForm(null);
            if (form != null && form.ShowDialog() == DialogResult.OK)
            {
                _plugins[_selectedPlugin].ReloadData();
            }
        }
        private void UpdateElement()
        {
            var element = _plugins[_selectedPlugin].GetElement;
            if (element == null)
            {
                MessageBox.Show("Нет выбранного элемента", "Ошибка",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            var form = _plugins[_selectedPlugin].GetForm(element);
            if (form != null && form.ShowDialog() == DialogResult.OK)
            {
                _plugins[_selectedPlugin].ReloadData();
            }
        }
        private void DeleteElement()
        {
            if (MessageBox.Show("Удалить выбранный элемент", "Удаление", 
                MessageBoxButtons.YesNo, 
                MessageBoxIcon.Question) != DialogResult.Yes)
            {
                return;
            }
            var element = _plugins[_selectedPlugin].GetElement;
            if (element == null)
            {
                MessageBox.Show("Нет выбранного элемента", "Ошибка",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            if (_plugins[_selectedPlugin].DeleteElement(element))
            {
                _plugins[_selectedPlugin].ReloadData();
            }
        }
        private void CreateSimpleDoc()
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Filter = "Word Documents (*.docx)|*.docx";
            saveFileDialog.Title = "Сохранить простой документ";
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                if (_plugins[_selectedPlugin].CreateSimpleDocument(
                    new PluginsConventionSaveDocument()
                    { 
                        FileName = saveFileDialog.FileName 
                    }))
                {
                    MessageBox.Show("Документ сохранен", "Создание" +
                        " документа", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {
                    MessageBox.Show("Ошибка при создании документа",
                    "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

            }
        }
        private void CreateTableDoc()
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Filter = "PDF Files (*.pdf)|*.pdf";
            saveFileDialog.Title = "Сохранить таблицу";
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                if (_plugins[_selectedPlugin].CreateTableDocument(
                    new PluginsConventionSaveDocument()
                    { 
                        FileName = saveFileDialog.FileName 
                    }))
                {
                    MessageBox.Show("Документ сохранен", "Создание" +
                        " документа", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {
                    MessageBox.Show("Ошибка при создании документа",
                    "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }
        private void CreateChartDoc()
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Filter = "Excel Files (*.xlsx)|*.xlsx";
            saveFileDialog.Title = "Сохранить диаграмму";
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                if (_plugins[_selectedPlugin].CreateChartDocument(
                    new PluginsConventionSaveDocument()
                    { 
                        FileName = saveFileDialog.FileName 
                    }))
                {
                    MessageBox.Show("Документ сохранен", "Создание" +
                        " документа", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {
                    MessageBox.Show("Ошибка при создании документа",
                    "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

            }
        }
        private void ThesaurusToolStripMenuItem_Click(object sender,
        EventArgs e) => ShowThesaurus();
        private void AddElementToolStripMenuItem_Click(object sender,
        EventArgs e) => AddNewElement();
        private void UpdElementToolStripMenuItem_Click(object sender,
        EventArgs e) => UpdateElement();
        private void DelElementToolStripMenuItem_Click(object sender,
        EventArgs e) => DeleteElement();
        private void SimpleDocToolStripMenuItem_Click(object sender,
        EventArgs e) => CreateSimpleDoc();
        private void TableDocToolStripMenuItem_Click(object sender, EventArgs
        e) => CreateTableDoc();
        private void ChartDocToolStripMenuItem_Click(object sender, EventArgs
        e) => CreateChartDoc();
    }
}