/*
 *
 *    Copyright (c) 2021 Project CHIP Authors
 *    All rights reserved.
 *
 *    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.
 */

/**
 *    @file
 *          Platform-specific key value storage implementation for BL602
 */
/* this file behaves like a config.h, comes first */
#include <platform/internal/CHIPDeviceLayerInternal.h>

#include <string.h>

#include <platform/KeyValueStoreManager.h>

#include <BL602Config.h>
#include <platform/bouffalolab/BL602/BL602Config.h>

namespace chip {
namespace DeviceLayer {
namespace PersistedStorage {

using namespace ::chip::DeviceLayer::Internal;

KeyValueStoreManagerImpl KeyValueStoreManagerImpl::sInstance;

CHIP_ERROR KeyValueStoreManagerImpl::_Get(const char * key, void * value, size_t value_size, size_t * read_bytes_size,
                                          size_t offset_bytes) const
{
    CHIP_ERROR err = CHIP_NO_ERROR;

    // todo: need get value at offset for return
    size_t outlen         = 0;
    BL602Config::Key ckey = { key };

    err = BL602Config::ReadConfigValueBin(ckey, value, value_size, outlen);
    if (CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND == err)
    {
        err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
    }

    SuccessOrExit(err);

    if (read_bytes_size)
    {
        *read_bytes_size = outlen;
    }

exit:
    return err;
}

CHIP_ERROR KeyValueStoreManagerImpl::_Put(const char * key, const void * value, size_t value_size)
{
    CHIP_ERROR err        = CHIP_NO_ERROR;
    BL602Config::Key ckey = { key };

    err = BL602Config::WriteConfigValueBin(ckey, value, value_size);
    if (CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND == err)
    {
        err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
    }

    return err;
}

CHIP_ERROR KeyValueStoreManagerImpl::_Delete(const char * key)
{
    CHIP_ERROR err        = CHIP_NO_ERROR;
    BL602Config::Key ckey = { key };

    err = BL602Config::ClearConfigValue(ckey);

    if (CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND == err)
    {
        err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
    }

    return err;
}

// #if defined(CHIP_KVS_AVAILABLE) && CHIP_KVS_AVAILABLE

// CHIP_ERROR KeyValueStoreManagerImpl::_Get(const char * key, void * value, size_t value_size, size_t * read_bytes_size,
//                                           size_t offset_bytes) const
// {
//     assert(CHIP_KVS_AVAILABLE);
//     auto status_and_size = mKvs.Get(key, pw::span<std::byte>(reinterpret_cast<std::byte *>(value), value_size), offset_bytes);
//     if (read_bytes_size)
//     {
//         *read_bytes_size = status_and_size.size();
//     }
//     switch (status_and_size.status().code())
//     {
//     case pw::OkStatus().code():
//         return CHIP_NO_ERROR;
//     case pw::Status::NotFound().code():
//         return CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
//     case pw::Status::DataLoss().code():
//         return CHIP_ERROR_INTEGRITY_CHECK_FAILED;
//     case pw::Status::ResourceExhausted().code():
//         return CHIP_ERROR_BUFFER_TOO_SMALL;
//     case pw::Status::FailedPrecondition().code():
//         return CHIP_ERROR_WELL_UNINITIALIZED;
//     case pw::Status::InvalidArgument().code():
//         return CHIP_ERROR_INVALID_ARGUMENT;
//     default:
//         break;
//     }
//     return CHIP_ERROR_INTERNAL; // Unexpected KVS status.
// }

// CHIP_ERROR KeyValueStoreManagerImpl::_Put(const char * key, const void * value, size_t value_size)
// {
//     assert(CHIP_KVS_AVAILABLE);
//     auto status = mKvs.Put(key, pw::span<const std::byte>(reinterpret_cast<const std::byte *>(value), value_size));
//     switch (status.code())
//     {
//     case pw::OkStatus().code():
//         return CHIP_NO_ERROR;
//     case pw::Status::DataLoss().code():
//         return CHIP_ERROR_INTEGRITY_CHECK_FAILED;
//     case pw::Status::ResourceExhausted().code():
//     case pw::Status::AlreadyExists().code():
//         return CHIP_ERROR_PERSISTED_STORAGE_FAILED;
//     case pw::Status::FailedPrecondition().code():
//         return CHIP_ERROR_WELL_UNINITIALIZED;
//     case pw::Status::InvalidArgument().code():
//         return CHIP_ERROR_INVALID_ARGUMENT;
//     default:
//         break;
//     }
//     return CHIP_ERROR_INTERNAL; // Unexpected KVS status.
// }

// CHIP_ERROR KeyValueStoreManagerImpl::_Delete(const char * key)
// {
//     printf("KeyValueStoreManagerImpl::_Delete, key = %s\r\n", key);
//     assert(CHIP_KVS_AVAILABLE);
//     printf("KeyValueStoreManagerImpl::_Delete, key = %s\r\n", key);

//     auto status = mKvs.Delete(key);
//     switch (status.code())
//     {
//     case pw::OkStatus().code():
//         return CHIP_NO_ERROR;
//     case pw::Status::NotFound().code():
//         return CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
//     case pw::Status::DataLoss().code():
//         return CHIP_ERROR_INTEGRITY_CHECK_FAILED;
//     case pw::Status::ResourceExhausted().code():
//         return CHIP_ERROR_PERSISTED_STORAGE_FAILED;
//     case pw::Status::FailedPrecondition().code():
//         return CHIP_ERROR_WELL_UNINITIALIZED;
//     case pw::Status::InvalidArgument().code():
//         return CHIP_ERROR_INVALID_ARGUMENT;
//     default:
//         break;
//     }
//     return CHIP_ERROR_INTERNAL; // Unexpected KVS status.
// }

// CHIP_ERROR KeyValueStoreManagerImpl::ErasePartition()
// {
//     assert(CHIP_KVS_AVAILABLE);
//     auto status = mKvsPartition.Erase();
//     switch (status.code())
//     {
//     case pw::OkStatus().code():
//         return CHIP_NO_ERROR;
//     case pw::Status::DeadlineExceeded().code():
//         return CHIP_ERROR_TIMEOUT;
//     case pw::Status::PermissionDenied().code():
//         return CHIP_ERROR_ACCESS_DENIED;
//     default:
//         break;
//     }
//     return CHIP_ERROR_INTERNAL; // Unexpected KVS status.
// }
// #endif // defined(CHIP_KVS_AVAILABLE) && CHIP_KVS_AVAILABLE

} // namespace PersistedStorage
} // namespace DeviceLayer
} // namespace chip