using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Threading;

namespace QuickClaude
{
    public static class Program
    {
        [STAThread]
        public static int Main(string[] args)
        {
            // Run as Claude Code's shell-command confirm hook (separate short-lived process)
            if (Array.IndexOf(args, "--confirm") >= 0) return ConfirmHook.Run();

            using var mutex = new Mutex(true, "QuickClaude.SingleInstance", out bool first);
            if (!first) return 0;

            var app = new System.Windows.Application { ShutdownMode = System.Windows.ShutdownMode.OnExplicitShutdown };
            var win = new MainWindow();
            win.Show();
            app.Run();
            return 0;
        }
    }

    public static class TrayIcon
    {
        [System.Runtime.InteropServices.DllImport("user32.dll")] static extern bool DestroyIcon(IntPtr h);

        public static Icon Make()
        {
            using var bmp = new Bitmap(32, 32);
            using (var g = Graphics.FromImage(bmp))
            {
                g.SmoothingMode = SmoothingMode.AntiAlias;
                g.Clear(Color.Transparent);
                using var fill = new SolidBrush(Color.FromArgb(0x1E, 0x3A, 0x8A)); // dark blue, matches app.ico
                using var path = new GraphicsPath();
                int r = 8;
                path.AddArc(1, 1, r * 2, r * 2, 180, 90);
                path.AddArc(31 - r * 2, 1, r * 2, r * 2, 270, 90);
                path.AddArc(31 - r * 2, 31 - r * 2, r * 2, r * 2, 0, 90);
                path.AddArc(1, 31 - r * 2, r * 2, r * 2, 90, 90);
                path.CloseFigure();
                g.FillPath(fill, path);
                using var font = new Font("Segoe UI", 17, FontStyle.Bold, GraphicsUnit.Pixel);
                var sf = new StringFormat { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center };
                g.DrawString("C", font, Brushes.White, new RectangleF(0, 1, 32, 32), sf);
            }
            var h = bmp.GetHicon();
            var icon = (Icon)Icon.FromHandle(h).Clone();
            DestroyIcon(h);
            return icon;
        }
    }
}