// Author: Gockner, Simon
// Created: 2021-04-06
// Copyright(c) 2021 SimonG. All Rights Reserved.

using System;
using System.Runtime.InteropServices;
using Lib.NotifyIcon.Windows.Native.Types;
using Point = Lib.NotifyIcon.Windows.Native.Types.Point;

namespace Lib.NotifyIcon.Windows.Native
{
    internal static class WindowApi
    {
        public delegate IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
        
        [DllImport("shell32", CharSet = CharSet.Auto)]
        public static extern int Shell_NotifyIcon(NIM dwMessage, NotifyIconData lpData);

        [DllImport("user32.dll")]
        public static extern void PostQuitMessage(int nExitCode);

        [DllImport("user32.dll", ExactSpelling = true)]
        public static extern bool SetForegroundWindow(IntPtr hWnd);

        [DllImport("user32.dll")]
        public static extern IntPtr CreatePopupMenu();

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool AppendMenu(IntPtr hMenu, MenuFlags uFlags, uint uIdNewItem, string lpNewItem);

        [DllImport("user32.dll")]
        public static extern uint TrackPopupMenuEx(IntPtr hMenu, UFlags uFlags, int x, int y, IntPtr hWnd, IntPtr lpTpm);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern IntPtr CreateWindowEx(
           int dwExStyle,
           uint lpClassName,
           string lpWindowName,
           uint dwStyle,
           int x,
           int y,
           int nWidth,
           int nHeight,
           IntPtr hWndParent,
           IntPtr hMenu,
           IntPtr hInstance,
           IntPtr lpParam);

        [DllImport("user32.dll", EntryPoint = "DefWindowProcW")]
        public static extern IntPtr DefWindowProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool DestroyWindow(IntPtr hWnd);

        [DllImport("user32.dll")]
        public static extern bool GetCursorPos(out Point lpPoint);
        
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "RegisterClassExW")]
        public static extern ushort RegisterClassEx(ref WndClassEx lpWcx);

        [return: MarshalAs(UnmanagedType.Bool)]
        [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "PostMessageW")]
        public static extern bool PostMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
        
        [DllImport("kernel32.dll")]
        public static extern IntPtr GetModuleHandle(string lpModuleName);
    }
}