#define _WIN32_WINNT 0x0501
#define _WIN32_IE 0x0501

#include <windows.h>
#include <commctrl.h>

#define BUGGY_TIMER_ID 1

static HWND g_hwndButton;
static HWND g_hwndTip;
static HWND g_hwndMain;

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg) {
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return DefWindowProc(hwnd, msg, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    INITCOMMONCONTROLSEX icex;
    icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
    icex.dwICC = ICC_WIN95_CLASSES | ICC_STANDARD_CLASSES;
    InitCommonControlsEx(&icex);

    WNDCLASSA wc;
    memset(&wc, 0, sizeof(wc));
    wc.lpfnWndProc   = WndProc;
    wc.hInstance     = hInstance;
    wc.hCursor       = LoadCursorA(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszClassName = "TooltipBugClass";

    if (!RegisterClassA(&wc)) {
        MessageBoxA(NULL, "Failed to register window class", "Error", MB_OK | MB_ICONERROR);
        return 1;
    }

    g_hwndMain = CreateWindowExA(
        0,
        "TooltipBugClass",
        "Tooltip Race Condition Demo",
        WS_OVERLAPPEDWINDOW | WS_VISIBLE,
        CW_USEDEFAULT, CW_USEDEFAULT,
        450, 200,
        NULL, NULL, hInstance, NULL
    );

    if (!g_hwndMain) {
        MessageBoxA(NULL, "Failed to create main window", "Error", MB_OK | MB_ICONERROR);
        return 1;
    }

    HWND hwndLabel = CreateWindowExA(
        0, "STATIC",
        "BUG TEST: Hover over button for ~300ms, then click!\n\n"
        "Expected: Tooltip should abort when you click.\n"
        "Bug: Tooltip still appears because timer wasn't killed.",
        WS_CHILD | WS_VISIBLE,
        20, 15, 400, 80,
        g_hwndMain, NULL, hInstance, NULL
    );

    g_hwndButton = CreateWindowExA(
        0, "BUTTON",
        "Hover ~300ms then CLICK me!",
        WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
        70, 95, 280, 35,
        g_hwndMain, (HMENU)1, hInstance, NULL
    );

    g_hwndTip = CreateWindowExA(
        WS_EX_TOPMOST,
        TOOLTIPS_CLASS,
        NULL,
        WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP,
        CW_USEDEFAULT, CW_USEDEFAULT,
        CW_USEDEFAULT, CW_USEDEFAULT,
        g_hwndMain, NULL, hInstance, NULL
    );

    TOOLINFOA ti;
    memset(&ti, 0, sizeof(ti));
    ti.cbSize   = sizeof(TOOLINFOA);
    ti.uFlags   = TTF_IDISHWND | TTF_SUBCLASS;
    ti.hwnd     = g_hwndMain;
    ti.uId      = (UINT_PTR)g_hwndButton;
    ti.lpszText = "BUG TRIGGERED! This tooltip should NOT show after click!";

    SendMessageA(g_hwndTip, TTM_ADDTOOL, 0, (LPARAM)&ti);
    SendMessageA(g_hwndTip, TTM_SETDELAYTIME, TTDT_INITIAL, 300);

    MSG msg;
    while (GetMessageA(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessageA(&msg);
    }

    return (int)msg.wParam;
}