/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "util_helper.h"

#include "native_engine.h"

namespace Commonlibrary::Platform {

UConverter* CreateConverter(const std::string& encStr_, UErrorCode& codeflag) {
    UConverter *conv = ucnv_open(encStr_.c_str(), &codeflag);
    if (U_FAILURE(codeflag)) {
        HILOG_ERROR("Unable to create a UConverter object: %s\n", u_errorName(codeflag));
        return NULL;
    }
    ucnv_setFromUCallBack(conv, UCNV_FROM_U_CALLBACK_SUBSTITUTE, NULL, NULL, NULL, &codeflag);
    if (U_FAILURE(codeflag)) {
        HILOG_ERROR("Unable to set the from Unicode callback function");
        ucnv_close(conv);
        return NULL;
    }

    ucnv_setToUCallBack(conv, UCNV_TO_U_CALLBACK_SUBSTITUTE, NULL, NULL, NULL, &codeflag);
    if (U_FAILURE(codeflag)) {
        HILOG_ERROR("Unable to set the to Unicode callback function");
        ucnv_close(conv);
        return NULL;
    }
    return conv;
}

std::string ConvertToString(UChar * uchar, size_t length)
{
    std::u16string tempStr16(uchar);
    std::string tepStr = std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> {}.to_bytes(tempStr16);
    return tepStr;
}

void EncodeIntoChinese(napi_env env, napi_value src, std::string encoding, std::string& buffer)
{
    NativeEngine *engine = reinterpret_cast<NativeEngine*>(env);
    NativeValue *nativeValue = reinterpret_cast<NativeValue*>(src);
    engine->EncodeToChinese(nativeValue, buffer, encoding);
}

} // namespace Commonlibrary::Platform