using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace WebShortCutApp
{
    public partial class MainForm : Form
    {
        private Dictionary<Keys, string> shortcuts = new Dictionary<Keys, string>()
        {
            { Keys.F1, "https://www.google.com" },
            { Keys.F2, "https://www.github.com" },
            { Keys.F3, "https://www.stackoverflow.com" },
            { Keys.F4, "https://www.reddit.com" },
            { Keys.F5, "https://www.crunchyroll.com" },
            { Keys.F6, "https://www.twitter.com" },
            { Keys.F7, "https://www.facebook.com" },
            { Keys.F8, "https://www.instagram.com" },
            { Keys.F9, "https://www.microsoft.com" },
            { Keys.F10, "https://www.apple.com" },
            { Keys.F11, "https://www.roblox.com" },
            { Keys.F12, "https://www.netflix.com" }
        };

        private int hotkeyId = 1;

        [DllImport("user32.dll")]
        private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);

        [DllImport("user32.dll")]
        private static extern bool UnregisterHotKey(IntPtr hWnd, int id);

        public MainForm()
        {
            InitializeComponent();
            RegisterAllHotkeys();
        }

        private void RegisterAllHotkeys()
        {
            foreach (var kvp in shortcuts)
            {
                RegisterHotKey(this.Handle, hotkeyId++, 0x0000, (uint)kvp.Key);
            }
        }

        protected override void WndProc(ref Message m)
        {
            const int WM_HOTKEY = 0x0312;
            if (m.Msg == WM_HOTKEY)
            {
                int id = m.WParam.ToInt32();
                Keys key = (Keys)(id - 1 + Keys.F1);
                if (shortcuts.TryGetValue(key, out string url))
                {
                    Process.Start(new ProcessStartInfo(url) { UseShellExecute = true });
                }
            }
            base.WndProc(ref m);
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                for (int i = 1; i < hotkeyId; i++)
                {
                    UnregisterHotKey(this.Handle, i);
                }
            }
            base.Dispose(disposing);
        }
    }
}