using Plugins;
using System.Reflection;

namespace Lab4
{
	public partial class Form1 : Form
	{
		private readonly Dictionary<string, IPluginsConvention> _plugins;
		private string _selectedPlugin;
		public Form1()
		{

			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 ShowCatalog()
		{
			_plugins[_selectedPlugin].GetCatalog()?.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 CreateWordDoc()
		{
			SaveFileDialog saveFileDialog = new SaveFileDialog();
			saveFileDialog.Filter = "Word Documents (*.docx)|*.docx";
			saveFileDialog.Title = "Сохранить простой документ";
			if (saveFileDialog.ShowDialog() == DialogResult.OK)
			{
				if (_plugins[_selectedPlugin].CreateWordDocument(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 CreatePdfDoc()
		{
			SaveFileDialog saveFileDialog = new SaveFileDialog();
			saveFileDialog.Filter = "PDF Files (*.pdf)|*.pdf";
			saveFileDialog.Title = "Сохранить таблицу";
			if (saveFileDialog.ShowDialog() == DialogResult.OK)
			{
				if (_plugins[_selectedPlugin].CreatePdfDocument(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 CreateExcelDoc()
		{
			SaveFileDialog saveFileDialog = new SaveFileDialog();
			saveFileDialog.Filter = "Excel Files (*.xlsx)|*.xlsx";
			saveFileDialog.Title = "Сохранить диаграмму";
			if (saveFileDialog.ShowDialog() == DialogResult.OK)
			{
				if (_plugins[_selectedPlugin].CreateExcelDocument(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) => ShowCatalog();
		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 WordDocToolStripMenuItem_Click(object sender,
		EventArgs e) => CreateWordDoc();
		private void ExcelDocToolStripMenuItem_Click(object sender, EventArgs
		e) => CreateExcelDoc();
		private void PdfDocToolStripMenuItem_Click(object sender, EventArgs
		e) => CreatePdfDoc();
	}
}