/*
* Copyright (c) 2025 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.
 */

#ifndef OHOS_DM_AUTH_CERT_H
#define OHOS_DM_AUTH_CERT_H

#include <dlfcn.h>

#include "dm_cert.h"
#include "i_dm_auth_cert_ext.h"
#if defined(__LITEOS_M__)
#include "dm_mutex.h"
#else
#include <mutex>
#endif

namespace OHOS {
namespace DistributedHardware {
class AuthCert {
public:
    static AuthCert &GetInstance(void)
    {
        static AuthCert instance;
        return instance;
    }

    int32_t GenerateCertificate(DmCertChain &dmCertChain);
    int32_t VerifyCertificate(const DmCertChain &dmCertChain, const char *deviceIdHash);
    int32_t GenerateCertificateV2(DmCertChain &dmCertChain, const uint64_t random);
    int32_t VerifyCertificateV2(const DmCertChain &dmCertChain, const char *deviceIdHash, const uint64_t random);

private:
    AuthCert();
    ~AuthCert();
    bool IsDMAdapterAuthCertLoaded();

    bool isAdapterAuthCertSoLoaded_ = false;
    void *authCertSoHandle_ = nullptr;
    std::mutex isAdapterAuthCertLoadedLock_;
    std::shared_ptr<IDMAuthCertExt> dmAuthCertExt_;
};
} // namespace DistributedHardware
} // namespace OHOS

#endif // OHOS_DM_AUTH_CERT_H