// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 ENCLAVE_H
#define ENCLAVE_H

#include <string>
#include <stdio.h>
#include <limits.h>
#include <unistd.h>

#include "enclave_u.h"
#include "LogBase.h"
#include "UtilityFunctions.h"

// Needed to call untrusted key exchange library APIs, i.e. sgx_ra_proc_msg2.
#include "sgx_ukey_exchange.h"

// Needed to query extended epid group id.
#include "sgx_uae_service.h"

class Enclave {

public:
    static Enclave* getInstance();
    virtual ~Enclave();
    sgx_status_t createEnclave();
    sgx_enclave_id_t getID();
    sgx_status_t raInit(sgx_ra_context_t *ra_context);
    void raClose(sgx_ra_context_t ra_context);

private:
    Enclave();
    static Enclave *instance;
    const char *enclave_path = "enclave.signed.so";
    sgx_enclave_id_t enclave_id;
};

#endif