using System.Runtime.InteropServices;

namespace OneClickRun.App.Services;

/// <summary>项目用到的 Win32 P/Invoke 声明。</summary>
internal static class NativeMethods
{
    internal const uint MOD_ALT = 0x0001;
    internal const uint MOD_CONTROL = 0x0002;
    internal const uint MOD_SHIFT = 0x0004;
    internal const uint MOD_WIN = 0x0008;
    internal const uint MOD_NOREPEAT = 0x4000;

    internal const uint WM_HOTKEY = 0x0312;
    internal const uint WM_QUIT = 0x0012;
    internal const uint MONITOR_DEFAULTTONEAREST = 0x2;
    internal const int MDT_EFFECTIVE_DPI = 0;
    internal static readonly IntPtr HWND_MESSAGE = new(-3);

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

    [DllImport("user32.dll", SetLastError = true)]
    internal static extern bool UnregisterHotKey(IntPtr hWnd, int id);

    [DllImport("user32.dll")]
    internal static extern short GetAsyncKeyState(int vKey);

    [DllImport("user32.dll")]
    internal static extern uint GetDoubleClickTime();

    [DllImport("user32.dll")]
    internal static extern bool GetCursorPos(out POINT lpPoint);

    [DllImport("user32.dll")]
    internal static extern IntPtr MonitorFromPoint(POINT pt, uint dwFlags);

    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
    internal static extern bool GetMonitorInfo(IntPtr hMonitor, ref MONITORINFO lpmi);

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

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

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

    [DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    internal static extern ushort RegisterClassEx(ref WNDCLASSEX lpwcx);

    [DllImport("user32.dll", SetLastError = true)]
    internal static extern int GetMessage(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax);

    [DllImport("user32.dll")]
    internal static extern bool TranslateMessage(ref MSG lpMsg);

    [DllImport("user32.dll")]
    internal static extern IntPtr DispatchMessage(ref MSG lpMsg);

    [DllImport("user32.dll", SetLastError = true)]
    internal static extern bool PostMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);

    [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
    internal static extern IntPtr GetModuleHandle(string? lpModuleName);

    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
    internal static extern int MessageBox(IntPtr hWnd, string text, string caption, uint type);

    [DllImport("user32.dll", SetLastError = true)]
    internal static extern bool DestroyIcon(IntPtr hIcon);

    [DllImport("Shcore.dll")]
    internal static extern int GetDpiForMonitor(IntPtr hmonitor, int dpiType, out uint dpiX, out uint dpiY);
}

[StructLayout(LayoutKind.Sequential)]
internal struct POINT
{
    public int X;
    public int Y;
}

[StructLayout(LayoutKind.Sequential)]
internal struct RECT
{
    public int Left;
    public int Top;
    public int Right;
    public int Bottom;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
internal struct MONITORINFO
{
    public int cbSize;
    public RECT rcMonitor;
    public RECT rcWork;
    public uint dwFlags;
}

[StructLayout(LayoutKind.Sequential)]
internal struct MSG
{
    public IntPtr hwnd;
    public uint message;
    public IntPtr wParam;
    public IntPtr lParam;
    public uint time;
    public POINT pt;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
internal struct WNDCLASSEX
{
    public uint cbSize;
    public uint style;
    public MessageWindow.WndProcDelegate? lpfnWndProc;
    public int cbClsExtra;
    public int cbWndExtra;
    public IntPtr hInstance;
    public IntPtr hIcon;
    public IntPtr hCursor;
    public IntPtr hbrBackground;
    public string? lpszMenuName;
    public string? lpszClassName;
    public IntPtr hIconSm;
}