using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LocalhostMES.Core
{
    public class TrayIconManager : IDisposable
    {
        private NotifyIcon trayIcon;
        private ContextMenuStrip trayMenu;

        public event EventHandler OnExit;
        public event EventHandler OnSettings;
        public event EventHandler OnAbout;

        public TrayIconManager()
        {
            InitializeTrayIcon();
        }

        private void InitializeTrayIcon()
        {
            // 创建托盘菜单
            trayMenu = new ContextMenuStrip();

            // 添加菜单项
            ToolStripMenuItem settingsItem = new ToolStripMenuItem("设置");
            settingsItem.Click += (s, e) => OnSettings?.Invoke(this, e);

            ToolStripMenuItem aboutItem = new ToolStripMenuItem("关于");
            aboutItem.Click += (s, e) => OnAbout?.Invoke(this, e);

            ToolStripMenuItem exitItem = new ToolStripMenuItem("退出");
            exitItem.Click += (s, e) => OnExit?.Invoke(this, e);

            trayMenu.Items.Add(settingsItem);
            trayMenu.Items.Add(new ToolStripSeparator());
            trayMenu.Items.Add(aboutItem);
            trayMenu.Items.Add(new ToolStripSeparator());
            trayMenu.Items.Add(exitItem);

            // 创建托盘图标
            trayIcon = new NotifyIcon
            {
                Text = "本地MES",
                Icon = CreateTrayIcon(),
                ContextMenuStrip = trayMenu,
                Visible = false
            };

            // 双击托盘图标事件
            trayIcon.DoubleClick += (s, e) => OnSettings?.Invoke(this, e);

            // 气泡提示事件
            trayIcon.BalloonTipClicked += (s, e) => OnAbout?.Invoke(this, e);
        }

        private Icon CreateTrayIcon()
        {
            // 创建一个简单的图标（可以使用资源文件或外部图标）
            Bitmap bitmap = new Bitmap(16, 16);
            using ( Graphics g = Graphics.FromImage(bitmap) )
            {
                g.Clear(Color.Transparent);
                g.FillRectangle(Brushes.Blue, 2, 2, 4, 12);  // 第一个屏幕
                g.FillRectangle(Brushes.Green, 8, 2, 4, 12); // 第二个屏幕
                g.FillEllipse(Brushes.White, 6, 6, 4, 4);    // 鼠标指针
            }

            return Icon.FromHandle(bitmap.GetHicon());
        }

        public void Show()
        {
            trayIcon.Visible = true;

            // 显示启动提示
            trayIcon.ShowBalloonTip(1000, "本地MES",
                "程序已启动", ToolTipIcon.Info);
        }

        public void ShowNotification(string title, string message)
        {
            trayIcon.ShowBalloonTip(1000, title, message, ToolTipIcon.Info);
        }

        public void Dispose()
        {
            if ( trayIcon != null )
            {
                trayIcon.Visible = false;
                trayIcon.Dispose();
            }

            if ( trayMenu != null )
            {
                trayMenu.Dispose();
            }
        }
    }
}