using System;
using System.Windows;
using System.Windows.Forms;

namespace PdmAlert
{
    public class DockApp
    {
        private Window showWindow;
        private NotifyIcon icon;

        public DockApp()
        {
            icon = new NotifyIcon();
            icon.BalloonTipText = "启动中...";
            icon.Text = "PDM消息通知程序";
            icon.Icon = new System.Drawing.Icon("./Icon/Icon.ico");
            icon.Visible = true;

            MenuItem mainItem = new MenuItem("显示主界面");
            mainItem.Click += ExitItem_Click;

            MenuItem switchUserItem = new MenuItem("切换用户");
            switchUserItem.Click += ExitItem_Click;

            MenuItem exitItem = new MenuItem("关闭");
            exitItem.Click += ExitItem_Click;

            MenuItem[] items = new MenuItem[] { mainItem, switchUserItem, exitItem };
            icon.ContextMenu = new ContextMenu(items);

            icon.DoubleClick += Icon_DoubleClick;

        }

        public void RefreshWindow()
        {
            if (showWindow != null)
            {
                showWindow.Show();
                showWindow.Activate();
            }
            else
            {
                showWindow = new MainWindow();
                showWindow.Show();
            }
        }

        private void Icon_DoubleClick(object sender, EventArgs e)
        {
            RefreshWindow();
        }

        public void Run()
        {
            RefreshWindow();
        }

        private void MainWindow_Closed(object sender, EventArgs e)
        {
            showWindow = null;
        }

        private void ExitItem_Click(object sender, EventArgs e)
        {
            if (showWindow != null)
            {
                showWindow.Close();
            }
            icon.Visible = false;
            icon.Dispose();
            System.Windows.Application.Current.Shutdown(0);
        }
    }
}