// Author: Gockner, Simon
// Created: 2021-04-07
// Copyright(c) 2021 SimonG. All Rights Reserved.

using System;
using Lib.NotifyIcon.Windows.Native;
using Lib.NotifyIcon.Windows.Native.Types;

namespace Lib.NotifyIcon.Windows
{
    /// <summary>
    /// A native Win32 helper window encapsulation for dealing with the window messages sent by the notification icon
    /// </summary>
    internal class NotifyIconHelperWindow : NativeWindow
    {
        private readonly NotifyIcon _notifyIcon;

        public NotifyIconHelperWindow(NotifyIcon notifyIcon) => _notifyIcon = notifyIcon;
        
        /// <summary>
        /// This function will receive all the system window messages relevant to our window.
        /// </summary>
        protected override IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
        {
            switch (msg)
            {
                case (uint) CustomWindowsMessage.WmTrayMouse:
                {
                    // Forward WM_TRAYMOUSE messages to the tray icon's window procedure
                    _notifyIcon.WndProc(hWnd, msg, wParam, lParam);
                    break;
                }
                default:
                    return base.WndProc(hWnd, msg, wParam, lParam);
            }
            
            return IntPtr.Zero;
        }
    }
}