/*
 *  Copyright (c) 2021-22, The OpenThread Authors.
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 *     notice, this list of conditions and the following disclaimer in the
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 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
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/**
 * @file
 *   This file implements the OpenThread Border Routing Manager API.
 */

#include "openthread-core-config.h"

#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE

#include "instance/instance.hpp"

using namespace ot;

otError otBorderRoutingInit(otInstance *aInstance, uint32_t aInfraIfIndex, bool aInfraIfIsRunning)
{
    AsCoreType(aInstance).Get<BorderRouter::InfraIf>().Init(aInfraIfIndex, aInfraIfIsRunning);

    return kErrorNone;
}

otError otBorderRoutingGetInfraIfInfo(otInstance *aInstance, uint32_t *aInfraIfIndex, bool *aInfraIfIsRunning)
{
    Error error = kErrorNone;

    AssertPointerIsNotNull(aInfraIfIndex);

    VerifyOrExit(AsCoreType(aInstance).Get<BorderRouter::InfraIf>().IsInitialized(), error = kErrorInvalidState);

    *aInfraIfIndex = AsCoreType(aInstance).Get<BorderRouter::InfraIf>().GetIfIndex();

    if (aInfraIfIsRunning != nullptr)
    {
        *aInfraIfIsRunning = AsCoreType(aInstance).Get<BorderRouter::InfraIf>().IsRunning();
    }

exit:
    return error;
}

otError otBorderRoutingSetEnabled(otInstance *aInstance, bool aEnabled)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetEnabled(aEnabled);
}

otBorderRoutingState otBorderRoutingGetState(otInstance *aInstance)
{
    return MapEnum(AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetState());
}

otError otBorderRoutingSetOmrConfig(otInstance              *aInstance,
                                    otBorderRoutingOmrConfig aConfig,
                                    const otIp6Prefix       *aOmrPrefix,
                                    otRoutePreference        aPreference)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetOmrConfig(
        MapEnum(aConfig), AsCoreTypePtr(aOmrPrefix), static_cast<BorderRouter::RoutePreference>(aPreference));
}

otBorderRoutingOmrConfig otBorderRoutingGetOmrConfig(otInstance        *aInstance,
                                                     otIp6Prefix       *aOmrPrefix,
                                                     otRoutePreference *aPreference)
{
    BorderRouter::RoutePreference           preference;
    BorderRouter::RoutingManager::OmrConfig omrConfig;

    omrConfig =
        AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetOmrConfig(AsCoreTypePtr(aOmrPrefix), &preference);

    if (aPreference != nullptr)
    {
        *aPreference = static_cast<otRoutePreference>(preference);
    }

    return MapEnum(omrConfig);
}

otRoutePreference otBorderRoutingGetRouteInfoOptionPreference(otInstance *aInstance)
{
    return static_cast<otRoutePreference>(
        AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetRouteInfoOptionPreference());
}

void otBorderRoutingSetRouteInfoOptionPreference(otInstance *aInstance, otRoutePreference aPreference)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetRouteInfoOptionPreference(
        static_cast<NetworkData::RoutePreference>(aPreference));
}

void otBorderRoutingClearRouteInfoOptionPreference(otInstance *aInstance)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().ClearRouteInfoOptionPreference();
}

otError otBorderRoutingSetExtraRouterAdvertOptions(otInstance *aInstance, const uint8_t *aOptions, uint16_t aLength)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetExtraRouterAdvertOptions(aOptions, aLength);
}

otRoutePreference otBorderRoutingGetRoutePreference(otInstance *aInstance)
{
    return static_cast<otRoutePreference>(
        AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetRoutePreference());
}

void otBorderRoutingSetRoutePreference(otInstance *aInstance, otRoutePreference aPreference)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetRoutePreference(
        static_cast<NetworkData::RoutePreference>(aPreference));
}

void otBorderRoutingClearRoutePreference(otInstance *aInstance)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().ClearRoutePreference();
}

otError otBorderRoutingGetOmrPrefix(otInstance *aInstance, otIp6Prefix *aPrefix)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetOmrPrefix(AsCoreType(aPrefix));
}

#if OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_ENABLE
otError otBorderRoutingGetPdOmrPrefix(otInstance *aInstance, otBorderRoutingPrefixTableEntry *aPrefixInfo)
{
    AssertPointerIsNotNull(aPrefixInfo);

    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetDhcp6PdOmrPrefix(*aPrefixInfo);
}

otError otBorderRoutingGetPdProcessedRaInfo(otInstance *aInstance, otPdProcessedRaInfo *aPdProcessedRaInfo)
{
    AssertPointerIsNotNull(aPdProcessedRaInfo);

    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetDhcp6PdCounters(*aPdProcessedRaInfo);
}
#endif

otError otBorderRoutingGetFavoredOmrPrefix(otInstance *aInstance, otIp6Prefix *aPrefix, otRoutePreference *aPreference)
{
    otError                       error;
    BorderRouter::RoutePreference preference;

    AssertPointerIsNotNull(aPreference);

    SuccessOrExit(error = AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetFavoredOmrPrefix(
                      AsCoreType(aPrefix), preference));
    *aPreference = static_cast<otRoutePreference>(preference);

exit:
    return error;
}

otError otBorderRoutingGetOnLinkPrefix(otInstance *aInstance, otIp6Prefix *aPrefix)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetOnLinkPrefix(AsCoreType(aPrefix));
}

otError otBorderRoutingGetFavoredOnLinkPrefix(otInstance *aInstance, otIp6Prefix *aPrefix)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetFavoredOnLinkPrefix(AsCoreType(aPrefix));
}

#if OPENTHREAD_CONFIG_NAT64_BORDER_ROUTING_ENABLE
otError otBorderRoutingGetNat64Prefix(otInstance *aInstance, otIp6Prefix *aPrefix)
{
    return AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetNat64Prefix(AsCoreType(aPrefix));
}

otError otBorderRoutingGetFavoredNat64Prefix(otInstance        *aInstance,
                                             otIp6Prefix       *aPrefix,
                                             otRoutePreference *aPreference)
{
    otError                       error;
    BorderRouter::RoutePreference preference;

    AssertPointerIsNotNull(aPreference);

    SuccessOrExit(error = AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetFavoredNat64Prefix(
                      AsCoreType(aPrefix), preference));
    *aPreference = static_cast<otRoutePreference>(preference);

exit:
    return error;
}
#endif

void otBorderRoutingPrefixTableInitIterator(otInstance *aInstance, otBorderRoutingPrefixTableIterator *aIterator)
{
    AssertPointerIsNotNull(aIterator);

    AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().InitIterator(*aIterator);
}

otError otBorderRoutingGetNextPrefixTableEntry(otInstance                         *aInstance,
                                               otBorderRoutingPrefixTableIterator *aIterator,
                                               otBorderRoutingPrefixTableEntry    *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().GetNextPrefixTableEntry(*aIterator, *aEntry);
}

otError otBorderRoutingGetNextRouterEntry(otInstance                         *aInstance,
                                          otBorderRoutingPrefixTableIterator *aIterator,
                                          otBorderRoutingRouterEntry         *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().GetNextRouterEntry(*aIterator, *aEntry);
}

#if OPENTHREAD_CONFIG_NAT64_BORDER_ROUTING_ENABLE
otError otBorderRoutingGetNextNat64PrefixEntry(otInstance                         *aInstance,
                                               otBorderRoutingPrefixTableIterator *aIterator,
                                               otBorderRoutingNat64PrefixEntry    *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().GetNextNat64PrefixEntry(*aIterator, *aEntry);
}
#endif

otError otBorderRoutingGetNextRdnssAddrEntry(otInstance                         *aInstance,
                                             otBorderRoutingPrefixTableIterator *aIterator,
                                             otBorderRoutingRdnssAddrEntry      *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().GetNextRdnssAddrEntry(*aIterator, *aEntry);
}

void otBorderRoutingSetRdnssAddrCallback(otInstance                      *aInstance,
                                         otBorderRoutingRdnssAddrCallback aCallback,
                                         void                            *aContext)
{
    AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().SetRdnssAddrCallback(aCallback, aContext);
}

otError otBorderRoutingGetNextIfAddrEntry(otInstance                         *aInstance,
                                          otBorderRoutingPrefixTableIterator *aIterator,
                                          otBorderRoutingIfAddrEntry         *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::RxRaTracker>().GetNextIfAddrEntry(*aIterator, *aEntry);
}

#if OPENTHREAD_CONFIG_BORDER_ROUTING_TRACK_PEER_BR_INFO_ENABLE

otError otBorderRoutingGetNextPeerBrEntry(otInstance                           *aInstance,
                                          otBorderRoutingPrefixTableIterator   *aIterator,
                                          otBorderRoutingPeerBorderRouterEntry *aEntry)
{
    AssertPointerIsNotNull(aIterator);
    AssertPointerIsNotNull(aEntry);

    return AsCoreType(aInstance).Get<BorderRouter::NetDataBrTracker>().GetNext(
        BorderRouter::NetDataBrTracker::kExcludeThisDevice, *aIterator, *aEntry);
}

uint16_t otBorderRoutingCountPeerBrs(otInstance *aInstance, uint32_t *aMinAge)
{
    uint32_t minAge;

    if (aMinAge == nullptr)
    {
        aMinAge = &minAge;
    }

    return AsCoreType(aInstance).Get<BorderRouter::NetDataBrTracker>().CountBrs(
        BorderRouter::NetDataBrTracker::kExcludeThisDevice, *aMinAge);
}

#endif

#if OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_ENABLE

void otBorderRoutingDhcp6PdSetEnabled(otInstance *aInstance, bool aEnabled)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetDhcp6PdEnabled(aEnabled);
}

otBorderRoutingDhcp6PdState otBorderRoutingDhcp6PdGetState(otInstance *aInstance)
{
    return MapEnum(AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().GetDhcp6PdState());
}

void otBorderRoutingDhcp6PdSetRequestCallback(otInstance                           *aInstance,
                                              otBorderRoutingRequestDhcp6PdCallback aCallback,
                                              void                                 *aContext)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetDhcp6PdCallback(aCallback, aContext);
}

#endif

#if OPENTHREAD_CONFIG_BORDER_ROUTING_TESTING_API_ENABLE

void otBorderRoutingSetOnLinkPrefix(otInstance *aInstance, const otIp6Prefix *aPrefix)
{
    AsCoreType(aInstance).Get<BorderRouter::RoutingManager>().SetOnLinkPrefix(AsCoreType(aPrefix));
}

#endif

#endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
