/*
 *
 *    Copyright (c) 2020 Project CHIP Authors
 *
 *    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
 *          Provides the implementation of the Device Layer ConfigurationManager object
 *          for Qorvo QPG platforms.
 */
/* this file behaves like a config.h, comes first */
#include <platform/internal/CHIPDeviceLayerInternal.h>

#include <platform/ConfigurationManager.h>
#include <platform/DiagnosticDataProvider.h>
#include <platform/internal/GenericConfigurationManagerImpl.ipp>

#include <lib/core/CHIPVendorIdentifiers.hpp>
#include <platform/qpg/qpgConfig.h>

#include <lib/support/CodeUtils.h>
#include <lib/support/logging/CHIPLogging.h>

namespace chip {
namespace DeviceLayer {

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

ConfigurationManagerImpl & ConfigurationManagerImpl::GetDefaultInstance()
{
    static ConfigurationManagerImpl sInstance;
    return sInstance;
}

CHIP_ERROR ConfigurationManagerImpl::Init()
{
    CHIP_ERROR err;
    uint32_t rebootCount;
    qvResetReason_t qvRebootReason;
    BootReasonType bootReason;

    // Initialize the generic implementation base class.
    err = Internal::GenericConfigurationManagerImpl<QPGConfig>::Init();
    SuccessOrExit(err);

    if (QPGConfig::ConfigValueExists(QPGConfig::kCounterKey_RebootCount))
    {
        err = GetRebootCount(rebootCount);
        SuccessOrExit(err);

        // Do not increment reboot count if the value is going to overflow UINT16.
        err = StoreRebootCount(rebootCount < UINT16_MAX ? rebootCount + 1 : rebootCount);
        SuccessOrExit(err);
    }
    else
    {
        // The first boot after factory reset of the Node.
        err = StoreRebootCount(1);
        SuccessOrExit(err);
    }
    if (!QPGConfig::ConfigValueExists(QPGConfig::kCounterKey_TotalOperationalHours))
    {
        err = StoreTotalOperationalHours(0);
        SuccessOrExit(err);
    }

    qvRebootReason = qvCHIP_GetResetReason();

    switch (qvRebootReason)
    {
    case qvResetReason_HW_BrownOutDetected: {
        bootReason = BootReasonType::kBrownOutReset;
        break;
    }

    case qvResetReason_HW_Watchdog: {
        bootReason = BootReasonType::kHardwareWatchdogReset;
        break;
    }

    case qvResetReason_HW_Por: {
        bootReason = BootReasonType::kPowerOnReboot;
        break;
    }

    case qvResetReason_SW_Por: {
        bootReason = BootReasonType::kSoftwareReset;
        break;
    }

    default:
        bootReason = BootReasonType::kUnspecified;
        break;
    }

    err = StoreBootReason(to_underlying(bootReason));
    SuccessOrExit(err);

    err = CHIP_NO_ERROR;

exit:
    return err;
}

CHIP_ERROR ConfigurationManagerImpl::GetRebootCount(uint32_t & rebootCount)
{
    return ReadConfigValue(QPGConfig::kCounterKey_RebootCount, rebootCount);
}

CHIP_ERROR ConfigurationManagerImpl::StoreRebootCount(uint32_t rebootCount)
{
    return WriteConfigValue(QPGConfig::kCounterKey_RebootCount, rebootCount);
}

CHIP_ERROR ConfigurationManagerImpl::GetTotalOperationalHours(uint32_t & totalOperationalHours)
{
    if (!QPGConfig::ConfigValueExists(QPGConfig::kCounterKey_TotalOperationalHours))
    {
        totalOperationalHours = 0;
        return CHIP_NO_ERROR;
    }

    return QPGConfig::ReadConfigValue(QPGConfig::kCounterKey_TotalOperationalHours, totalOperationalHours);
}

CHIP_ERROR ConfigurationManagerImpl::StoreTotalOperationalHours(uint32_t totalOperationalHours)
{
    return QPGConfig::WriteConfigValue(QPGConfig::kCounterKey_TotalOperationalHours, totalOperationalHours);
}

CHIP_ERROR ConfigurationManagerImpl::GetBootReason(uint32_t & bootReason)
{
    return ReadConfigValue(QPGConfig::kCounterKey_BootReason, bootReason);
}

CHIP_ERROR ConfigurationManagerImpl::StoreBootReason(uint32_t bootReason)
{
    return WriteConfigValue(QPGConfig::kCounterKey_BootReason, bootReason);
}

bool ConfigurationManagerImpl::CanFactoryReset()
{
    // TODO: query the application to determine if factory reset is allowed.
    return true;
}

void ConfigurationManagerImpl::InitiateFactoryReset()
{
    PlatformMgr().ScheduleWork(DoFactoryReset);
}

CHIP_ERROR ConfigurationManagerImpl::ReadPersistedStorageValue(::chip::Platform::PersistedStorage::Key persistedStorageKey,
                                                               uint32_t & value)
{
    CHIP_ERROR err;
    uintmax_t recordKey = persistedStorageKey + QPGConfig::kConfigKey_GroupKeyBase;

    VerifyOrExit(recordKey <= QPGConfig::kConfigKey_GroupKeyMax, err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND);

    err = ReadConfigValue(persistedStorageKey, value);
    if (err == CHIP_DEVICE_ERROR_CONFIG_NOT_FOUND)
    {
        err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND;
    }
    SuccessOrExit(err);

exit:
    return err;
}

CHIP_ERROR ConfigurationManagerImpl::WritePersistedStorageValue(::chip::Platform::PersistedStorage::Key persistedStorageKey,
                                                                uint32_t value)
{
    CHIP_ERROR err;

    uintmax_t recordKey = persistedStorageKey + QPGConfig::kConfigKey_GroupKeyBase;

    VerifyOrExit(recordKey <= QPGConfig::kConfigKey_GroupKeyMax, err = CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND);

    err = WriteConfigValue(persistedStorageKey, value);
    SuccessOrExit(err);

exit:
    return err;
}

CHIP_ERROR ConfigurationManagerImpl::ReadConfigValue(Key key, bool & val)
{
    return QPGConfig::ReadConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::ReadConfigValue(Key key, uint32_t & val)
{
    return QPGConfig::ReadConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::ReadConfigValue(Key key, uint64_t & val)
{
    return QPGConfig::ReadConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::ReadConfigValueStr(Key key, char * buf, size_t bufSize, size_t & outLen)
{
    return QPGConfig::ReadConfigValueStr(key, buf, bufSize, outLen);
}

CHIP_ERROR ConfigurationManagerImpl::ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen)
{
    return QPGConfig::ReadConfigValueBin(key, buf, bufSize, outLen);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValue(Key key, bool val)
{
    return QPGConfig::WriteConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValue(Key key, uint32_t val)
{
    return QPGConfig::WriteConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValue(Key key, uint64_t val)
{
    return QPGConfig::WriteConfigValue(key, val);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValueStr(Key key, const char * str)
{
    return QPGConfig::WriteConfigValueStr(key, str);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValueStr(Key key, const char * str, size_t strLen)
{
    return QPGConfig::WriteConfigValueStr(key, str, strLen);
}

CHIP_ERROR ConfigurationManagerImpl::WriteConfigValueBin(Key key, const uint8_t * data, size_t dataLen)
{
    return QPGConfig::WriteConfigValueBin(key, data, dataLen);
}

void ConfigurationManagerImpl::RunConfigUnitTest(void)
{
    QPGConfig::RunConfigUnitTest();
}

void ConfigurationManagerImpl::DoFactoryReset(intptr_t arg)
{
    CHIP_ERROR err;
    qvStatus_t qvErr;

    ChipLogProgress(DeviceLayer, "Performing factory reset");

    err = QPGConfig::FactoryResetConfig();
    if (err != CHIP_NO_ERROR)
    {
        ChipLogError(DeviceLayer, "FactoryResetConfig() failed: %s", ErrorStr(err));
    }

    qvErr = qvCHIP_KvsErasePartition();
    if (qvErr != QV_STATUS_NO_ERROR)
    {
        ChipLogError(DeviceLayer, "qvCHIP_KvsErasePartition() failed: %d", qvErr);
    }

#if CHIP_DEVICE_CONFIG_ENABLE_THREAD

    ChipLogProgress(DeviceLayer, "Clearing Thread provision");
    ThreadStackMgr().ErasePersistentInfo();

#endif // CHIP_DEVICE_CONFIG_ENABLE_THREAD

    // Restart the system.
    ChipLogProgress(DeviceLayer, "System restarting");
    qvCHIP_ResetSystem();
}

ConfigurationManager & ConfigurationMgrImpl()
{
    return ConfigurationManagerImpl::GetDefaultInstance();
}

} // namespace DeviceLayer
} // namespace chip