#include "Common.h"
#include "Logger.h"

#if ARDRV_LOG_ENABLED

#define ARDRV_LOG_FILE L"C:\\Users\\Public\\ardrv_loader.log"

void LogImpl(const wchar_t* fmt, ...)
{
    wchar_t buf[8192];
    buf[0] = L'\0';

    va_list args;

    va_start(args, fmt);
    int n = _vscwprintf(fmt, args);
    va_end(args);

    if (n < 0)
        n = 0;

    if (n > (int)_countof(buf) - 3)
        n = (int)_countof(buf) - 3;

    va_start(args, fmt);
    _vsnwprintf_s(buf, (size_t)(_countof(buf) - 1), (size_t)n, fmt, args);
    va_end(args);

    buf[n] = L'\r';
    buf[n + 1] = L'\n';
    buf[n + 2] = L'\0';

    HANDLE hFile = CreateFileW(
        ARDRV_LOG_FILE,
        GENERIC_WRITE,
        FILE_SHARE_READ | FILE_SHARE_WRITE,
        nullptr,
        OPEN_ALWAYS,
        0,
        nullptr);

    if (hFile != INVALID_HANDLE_VALUE)
    {
        LARGE_INTEGER zero{};
        SetFilePointerEx(hFile, zero, nullptr, FILE_END);

        DWORD written = 0;
        WriteFile(hFile, buf, (DWORD)((n + 2) * sizeof(WCHAR)), &written, nullptr);
        CloseHandle(hFile);
    }

    OutputDebugStringW(buf);
}

#endif