//------------------------------------------------------------------------------
// <copyright file="SolutionOpen.cs" company="Company">
//     Copyright (c) Company.  All rights reserved.
// </copyright>
//------------------------------------------------------------------------------

using System;
using System.ComponentModel.Design;
using System.Globalization;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
using System.Windows.Forms;

namespace SolutionOpen.Command
{
	/// <summary>
	/// Command handler
	/// </summary>
	internal sealed class SolutionOpen
	{
		/// <summary>
		/// Command ID.
		/// </summary>
		public const int CommandId = 0x0100;

		/// <summary>
		/// Command menu group (command set GUID).
		/// </summary>
		public static readonly Guid CommandSet = new Guid("f044c1a5-742b-472d-b45a-fc2b5df582f9");

		/// <summary>
		/// VS Package that provides this command, not null.
		/// </summary>
		private readonly Package package;

		/// <summary>
		/// Initializes a new instance of the <see cref="SolutionOpen"/> class.
		/// Adds our command handlers for menu (commands must exist in the command table file)
		/// </summary>
		/// <param name="package">Owner package, not null.</param>
		private SolutionOpen(Package package)
		{
			if(package == null)
			{
				throw new ArgumentNullException("package");
			}

			this.package = package;

			OleMenuCommandService commandService = this.ServiceProvider.GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
			if(commandService != null)
			{
				var menuCommandID = new CommandID(CommandSet, CommandId);
				var menuItem = new MenuCommand(this.MenuItemCallback, menuCommandID);
				commandService.AddCommand(menuItem);
			}
		}

		/// <summary>
		/// Gets the instance of the command.
		/// </summary>
		public static SolutionOpen Instance
		{
			get;
			private set;
		}

		/// <summary>
		/// Gets the service provider from the owner package.
		/// </summary>
		private IServiceProvider ServiceProvider
		{
			get
			{
				return this.package;
			}
		}

		/// <summary>
		/// Initializes the singleton instance of the command.
		/// </summary>
		/// <param name="package">Owner package, not null.</param>
		public static void Initialize(Package package)
		{
			Instance = new SolutionOpen(package);
		}

		/// <summary>
		/// This function is the callback used to execute the command when the menu item is clicked.
		/// See the constructor to see how the menu item is associated with this function using
		/// OleMenuCommandService service and MenuCommand class.
		/// </summary>
		/// <param name="sender">Event sender.</param>
		/// <param name="e">Event args.</param>
		private void MenuItemCallback(object sender, EventArgs e)
		{
			// show the dialog box and handle what the user wants to do
			ToolWindow.ChooseFile chooseFile = new ToolWindow.ChooseFile();
			if (chooseFile.ShowDialog() == DialogResult.OK)
				chooseFile.OpenSelectedFiles();

			// clean up
			chooseFile.Dispose();
		}
	}
}