#include "utils.h"

#define MUTEX_NAME XOR_STRING_W(L"Local\\seriver_mutex_anit")

auto utils::check_mutex() -> BOOL
{
    HANDLE mutex = CreateMutex(nullptr, TRUE, MUTEX_NAME);
    if (!mutex || GetLastError() == ERROR_ALREADY_EXISTS)
    {
        CloseHandle(mutex);
        return FALSE;
    }

    return TRUE;

}

// 不区分大小写宽字符串查找
bool utils::StrContainsI(LPCWSTR Source, LPCWSTR Sub)
{
    if (!Source || !Sub)
        return FALSE;
    WCHAR srcBuf[1024] = { 0 };
    WCHAR subBuf[1024] = { 0 };
    lstrcpyW(srcBuf, Source);
    lstrcpyW(subBuf, Sub);
    _wcslwr(srcBuf);
    _wcslwr(subBuf);
    return wcsstr(srcBuf, subBuf) != nullptr;
}


// 读取注册表字符串值
BOOL utils::RegReadString(HKEY hRoot, LPCSTR szSubKey, LPCSTR szValueName, char* outBuf, DWORD bufSize)
{
    HKEY hKey;
    LONG ret = RegOpenKeyExA(hRoot, szSubKey, 0, KEY_READ, &hKey);
    if (ret != ERROR_SUCCESS)
        return FALSE;

    DWORD dataType = REG_SZ;
    DWORD dataLen = bufSize;
    ret = RegQueryValueExA(hKey, szValueName, nullptr, &dataType, (LPBYTE)outBuf, &dataLen);
    RegCloseKey(hKey);

    if (ret != ERROR_SUCCESS)
        return FALSE;
    outBuf[dataLen] = '\0';
    return TRUE;
}