/*
 * Copyright (c) 2023 Fancy Code.
 * 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 SHARED_DATA_IMPL_H
#define SHARED_DATA_IMPL_H
#include "SharedData.h"
#include "SharedMemory.h"
#include <memory>
#include <mutex>
constexpr int USER_NAME_BUF_LENGTH = 4;
#define USER_NAME_INIT_NAME "XING"
enum USER_DATA_INIT
{
    USER_DATA_INIT_SUCCEED = 0,
    USER_DATA_INIT_FAILED,
    USER_DATA_INIT_END
};
typedef struct shared_data_header
{
    const char *mCheckName;
} SharedDataHeader;
// TODO: Use mutex to luck memory data?
// typedef struct shared_memory_header
// {
//     std::mutex mMutex;
// };
typedef struct user_data_header
{
    char mUserName[USER_NAME_BUF_LENGTH];
    unsigned int mDataLength;
    int mIsInit;
} UserDataHeader;
class SharedDataCpp : public SharedMemory
{
public:
    SharedDataCpp(const SHARER_NAME &sharerName, const char *path, const int &projectId);
    virtual ~SharedDataCpp() = default;
    void MakeSharedMemory(const unsigned int readableSize, const unsigned int writableSize);
    const StatusCode GetReadableMemory(void *buf, const unsigned int &bufLength);
    void SetWritableMemory(void *buf, const unsigned int &bufLength);

private:
    void WritableDataInit(void);

private:
    const SHARER_NAME mSharerName;
    unsigned int mPrimaryReadSize;
    unsigned int mMinorReadSize;
    void *mSharedMemeory;
};
typedef struct shared_data_impl SharedDataImpl;
typedef struct shared_data_impl
{
    SharedDataHeader mHeader;
    SharedData mBase;
    std::shared_ptr<SharedDataCpp> mSharedData;
} SharedDataImpl;
SharedData *NewSharedDataImpl(const SHARER_NAME &name, const char *path, const int &projectId);
#endif