// Copyright 2018-2024 Open Networking Foundation (ONF) and the ONF Contributors
//
// 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.

syntax = "proto3";

option go_package = "github.com/opencord/voltha-protos/v5/go/extension";
option java_package = "org.opencord.voltha.extension";

package extension;

import "voltha_protos/ext_config.proto";
import "google/protobuf/empty.proto";

message ValueSet {
    string id = 1;
    oneof value{
        config.AlarmConfig alarm_config = 2;
    }
}

message ValueType {
    enum Type {
            EMPTY = 0;
            DISTANCE = 1;
    }
}

message ValueSpecifier {
    string id = 1;
    ValueType.Type value = 2;
}

message ReturnValues {
    uint32  Set = 1;       // Specifies what values are
                           // set/valid in return

    uint32 Unsupported = 2; // Specifies requested values not
                            // supported by the device

    uint32 Error  = 3;      // Specifies requested values not
                            // fetched because of error

    uint32 Distance = 4;    // Value of distance Set includes
                            // DISTANCE

}

message GetDistanceRequest {
    string onuDeviceId = 1;
}

message GetDistanceResponse {
    uint32 distance = 1; // distance in meters
}

message GetOnuUniInfoRequest {
    uint32 uniIndex = 1; // Index of the uni starting from 0
}

message GetOnuUniInfoResponse {
    enum ConfigurationInd {
        UNKOWN = 0;
        TEN_BASE_T_FDX = 1;
        HUNDRED_BASE_T_FDX = 2;
        GIGABIT_ETHERNET_FDX = 3;
        TEN_G_ETHERNET_FDX = 4;
        TEN_BASE_T_HDX = 5;
        HUNDRED_BASE_T_HDX = 6;
        GIGABIT_ETHERNET_HDX = 7;
    }

    enum AdministrativeState {
        ADMSTATE_UNDEFINED = 0;
        LOCKED = 1;
        UNLOCKED = 2;
    }

    enum OperationalState {
        OPERSTATE_UNDEFINED = 0;
        ENABLED = 1;
        DISABLED = 2;
    }

    AdministrativeState admState = 1;
    OperationalState operState = 2;
    ConfigurationInd configInd = 3;
}

message GetOltPortCounters {
    enum PortType {
        Port_UNKNOWN = 0;
        Port_ETHERNET_NNI = 1;
        Port_PON_OLT = 2;
    }
    uint32 portNo = 1;  // Device-unique port number
    PortType portType = 2;
}

message GetOltPortCountersResponse {
    uint64 txBytes = 1;
    uint64 rxBytes = 2;
    uint64 txPackets = 3;
    uint64 rxPackets = 4;
    uint64 txErrorPackets = 5;
    uint64 rxErrorPackets = 6;
    uint64 txBcastPackets = 7;
    uint64 rxBcastPackets = 8;
    uint64 txUcastPackets = 9;
    uint64 rxUcastPackets = 10;
    uint64 txMcastPackets = 11;
    uint64 rxMcastPackets = 12;
}

message GetOnuPonOpticalInfo {
    google.protobuf.Empty empty = 1;
}

// These values correspond to the Optical Line Supervision Test results
// described in section A3.39.5 of ITU-T G.988 (11/2017) specification.
message GetOnuPonOpticalInfoResponse{
    float powerFeedVoltage = 1; // unit of value is voltage
    float receivedOpticalPower = 2; // unit of value is dBm
    float meanOpticalLaunchPower = 3; // unit of value is dBm
    float laserBiasCurrent = 4; // unit of value is milli-amphere (mA)
    float temperature = 5; // unit of value is degree celsius
}

message GetOnuEthernetBridgePortHistory {
    enum Direction {
        UNDEFINED = 0;
        UPSTREAM = 1;
        DOWNSTREAM = 2;
    }
    Direction direction = 1;
}

message GetOnuEthernetBridgePortHistoryResponse {
     uint32 dropEvents = 1;
     uint32 octets = 2;
     uint32 packets= 3;
     uint32 broadcastPackets = 4;
     uint32 multicastPackets = 5;
     uint32 crcErroredPackets = 6;
     uint32 undersizePackets = 7;
     uint32 oversizePackets = 8;
     uint32 packets64octets = 9;
     uint32 packets65To127octets = 10;
     uint32 packets128To255Octets = 11;
     uint32 packets256To511octets = 12;
     uint32 packets512To1023octets = 13;
     uint32 packets1024To1518octets = 14;
}

message GetOnuFecHistory {
    google.protobuf.Empty empty = 1;
}

message GetOnuFecHistoryResponse {
    uint32 correctedBytes = 1;
    uint32 correctedCodeWords = 2;
    uint32 fecSeconds = 3;
    uint32 totalCodeWords = 4;
    uint32 uncorrectableCodeWords = 5;
}

message GetOnuCountersRequest {
    fixed32 intf_id = 1;
    fixed32 onu_id = 2;
}

message GetOmciEthernetFrameExtendedPmRequest {
    string onuDeviceId = 1;
    oneof is_uni_index {
        uint32 uniIndex = 2; // Index of the uni starting from 0
    }
    bool reset = 3;
}

// DEPRECATED
message GetRxPowerRequest {
    fixed32 intf_id = 1;
    fixed32 onu_id = 2;
}

message GetOltRxPowerRequest {
    string port_label = 1;
    // onu_sn is optional and if onu_sn is an empty string and the label is 
    // of a PON port then it means that the Rx Power corresponding to all 
    // the ONUs on that PON port is requested. In case the port_label is not
    // of a PON port, the onu_sn does not have any significance 
    string onu_sn = 2;
}

message GetOnuCountersResponse {
    oneof is_intf_id {
        fixed32 intf_id = 1;
    }
    oneof is_onu_id {
        fixed32 onu_id = 2;
    }
    oneof is_positive_drift {
        fixed64 positive_drift = 3;
    }
    oneof is_negative_drift {
        fixed64 negative_drift = 4;
    }
    oneof is_delimiter_miss_detection {
        fixed64 delimiter_miss_detection = 5;
    }
    oneof is_bip_errors {
        fixed64 bip_errors = 6;
    }
    oneof is_bip_units {
        fixed64 bip_units = 7;
    }
    oneof is_fec_corrected_symbols {
        fixed64 fec_corrected_symbols = 8;
    }
    oneof is_fec_codewords_corrected {
        fixed64 fec_codewords_corrected = 9;
    }
    oneof is_fec_codewords_uncorrectable {
        fixed64 fec_codewords_uncorrectable = 10;
    }
    oneof is_fec_codewords {
        fixed64 fec_codewords = 11;
    }
    oneof is_fec_corrected_units {
        fixed64 fec_corrected_units = 12;
    }
    oneof is_xgem_key_errors {
        fixed64 xgem_key_errors = 13;
    }
    oneof is_xgem_loss {
        fixed64 xgem_loss = 14;
    }
    oneof is_rx_ploams_error {
        fixed64 rx_ploams_error = 15;
    }
    oneof is_rx_ploams_non_idle {
        fixed64 rx_ploams_non_idle = 16;
    }
    oneof is_rx_omci {
        fixed64 rx_omci = 17;
    }
    oneof is_tx_omci {
        fixed64 tx_omci = 18;
    }
    oneof is_rx_omci_packets_crc_error {
        fixed64 rx_omci_packets_crc_error = 19;
    }
    oneof is_rx_bytes {
        fixed64 rx_bytes = 20;
    }
    oneof is_rx_packets {
        fixed64 rx_packets = 21;
    }
    oneof is_tx_bytes {
        fixed64 tx_bytes = 22;
    }
    oneof is_tx_packets {
        fixed64 tx_packets = 23;
    }
    oneof is_ber_reported {
        fixed64 ber_reported = 24;
    }
    oneof is_lcdg_errors {
        fixed64 lcdg_errors = 25;
    }
    oneof is_rdi_errors {
        fixed64 rdi_errors = 26;
    }
    oneof is_timestamp {
        // reported timestamp in seconds since epoch
        fixed32 timestamp = 27;
    }
}

message OmciEthernetFrameExtendedPm {
        fixed64 drop_events = 1;
        fixed64 octets = 2;
        fixed64 frames = 3;
        fixed64 broadcast_frames = 4;
        fixed64 multicast_frames = 5;
        fixed64 crc_errored_frames = 6;
        fixed64 undersize_frames = 7;
        fixed64 oversize_frames = 8;
        fixed64 frames_64_octets = 9;
        fixed64 frames_65_to_127_octets = 10;
        fixed64 frames_128_to_255_octets = 11;
        fixed64 frames_256_to_511_octets = 12;
        fixed64 frames_512_to_1023_octets = 13;
        fixed64 frames_1024_to_1518_octets = 14;
}

message GetOmciEthernetFrameExtendedPmResponse {
    enum Format {
        THIRTY_TWO_BIT = 0;
        SIXTY_FOUR_BIT = 1;
    }
    OmciEthernetFrameExtendedPm upstream = 1;
    OmciEthernetFrameExtendedPm downstream = 2;
    Format omci_ethernet_frame_extended_pm_format= 3;
}

message RxPower {
    string onu_sn = 1; // if the port on which RxPower is measured is not a PON port this will be empty ("") string
    string status = 2;
    string fail_reason = 3;
    double rx_power = 4;
}

message GetOltRxPowerResponse {
    string port_label= 1;
    repeated RxPower rx_power = 2;
}

// DEPRECATED
message GetRxPowerResponse {
    fixed32 intf_id= 1;
    fixed32 onu_id = 2;
    string status = 3;
    string fail_reason = 4;
    double rx_power = 5;
}

message GetOnuOmciTxRxStatsRequest{
    google.protobuf.Empty empty = 1;
}

// see ITU-T G.988 clause 11.2.2 
message GetOnuOmciTxRxStatsResponse {
    // OMCI baseline Tx frames with AR bit set
    uint32 base_tx_ar_frames = 1;
    // OMCI baseline Rx frames with AK bit set
    uint32 base_rx_ak_frames = 2;
    // OMCI baseline Tx frames with AR bit unset
    uint32 base_tx_no_ar_frames = 3;
    // OMCI baseline Rx frames with AK bit unset
    uint32 base_rx_no_ak_frames = 4;
    // OMCI extended Tx frames with AR bit set
    uint32 ext_tx_ar_frames = 5;
    // OMCI extended Rx frames with AK bit set
    uint32 ext_rx_ak_frames = 6;
    // OMCI extended Tx frames with AR bit unset
    uint32 ext_tx_no_ar_frames = 7;
    // OMCI extended Rx frames with AK bit unset
    uint32 ext_rx_no_ak_frames = 8;
    // Number of retries of requests (tx) due to not received responses (Rx)
    uint32 tx_omci_counter_retries = 9;
    // Number of timeouts of requests (tx) due to not received responses (Rx) after configured number of retries
    uint32 tx_omci_counter_timeouts = 10;
}

message GetOnuOmciActiveAlarmsRequest{
    google.protobuf.Empty empty = 1;
}

message AlarmData{
    uint32 class_id = 1;
    uint32 instance_id = 2;
    string name = 3;
    string description = 4;
}

message GetOnuOmciActiveAlarmsResponse{
    repeated AlarmData active_alarms = 1;
}

message GetOffloadedAppsStatisticsRequest {
    enum OffloadedApp {
        UNDEFINED = 0;
        PPPoeIA = 1;
        DHCPv4RA = 2;
        DHCPv6RA = 3;
    }
    // The offloaded application whose statistics are requested
    OffloadedApp statsFor = 1;
}

message GetOffloadedAppsStatisticsResponse {
    message DHCPv4RAStats {
        // From https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-l2-dhcpv4-relay.yang
        uint32 in_bad_packets_from_client = 1;
        uint32 in_bad_packets_from_server = 2;
        uint32 in_packets_from_client = 3;
        uint32 in_packets_from_server = 4;
        uint32 out_packets_to_server = 5;
        uint32 out_packets_to_client = 6;
        uint32 option_82_inserted_packets_to_server = 7;
        uint32 option_82_removed_packets_to_client = 8;
        uint32 option_82_not_inserted_to_server = 9;

        // Name value pairs that gives the flexibility to report different statistics that implementations may choose
        map<string, string> additional_stats = 10; 
    }

    message DHCPv6RAStats {
        // From https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-ldra.yang
        uint32 in_bad_packets_from_client = 1;
        uint32 in_bad_packets_from_server = 2;
        uint32 option_17_inserted_packets_to_server = 3;
        uint32 option_17_removed_packets_to_client = 4;
        uint32 option_18_inserted_packets_to_server = 5;
        uint32 option_18_removed_packets_to_client = 6;
        uint32 option_37_inserted_packets_to_server = 7;
        uint32 option_37_removed_packets_to_client = 8;
        uint32 outgoing_mtu_exceeded_packets_from_client = 9;

        // Name value pairs that gives the flexibility to report different statistics that implementations may choose
        map<string, string> additional_stats = 10; 
    }

    message PPPoeIAStats {
        // From https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-pppoe-intermediate-agent.yang
        uint32 in_error_packets_from_client = 1;
        uint32 in_error_packets_from_server = 2;
        uint32 in_packets_from_client = 3;
        uint32 in_packets_from_server = 4;
        uint32 out_packets_to_server = 5;
        uint32 out_packets_to_client = 6;
        uint32 vendor_specific_tag_inserted_packets_to_server = 7;
        uint32 vendor_specific_tag_removed_packets_to_client = 8;
        uint32 outgoing_mtu_exceeded_packets_from_client = 9;

        // Name value pairs that gives the flexibility to report different statistics that implementations may choose
        map<string, string> additional_stats = 10; 
    }
    
    oneof stats {
        DHCPv4RAStats dhcpv4RaStats = 1;
        DHCPv6RAStats dhcpv6RaStats = 2;
        PPPoeIAStats pppoeIaStats = 3;
    }
}

message GetValueRequest {
    oneof request {
        GetDistanceRequest distance = 1;
        GetOnuUniInfoRequest uniInfo = 2;
        // Corresponds to PmMetricId.PON_PORT_COUNTERS, PmMetricId.NNI_PORT_COUNTERS
        GetOltPortCounters oltPortInfo = 3;
        // Corresponds to PmMetricId.PON_OPTICAL
        GetOnuPonOpticalInfo onuOpticalInfo = 4;
        // Corresponds to PmMetricId.ETHERNET_BRIDGE_PORT_HISTORY
        GetOnuEthernetBridgePortHistory ethBridgePort = 5;
        // Corresponds to PmMetricId.FEC_HISTORY
        GetOnuFecHistory fecHistory = 6;
        GetOnuCountersRequest onuPonInfo = 7;
        GetOmciEthernetFrameExtendedPmRequest onuInfo = 8;
        GetRxPowerRequest rxPower = 9; // This is deprecated
        GetOnuOmciTxRxStatsRequest onuOmciStats = 10;
        GetOltRxPowerRequest oltRxPower = 11;
        GetOnuOmciActiveAlarmsRequest onuActiveAlarms  = 12;
        GetOffloadedAppsStatisticsRequest offloadedAppsStats = 13;
    }
}

message GetValueResponse {
    enum Status {
        STATUS_UNDEFINED = 0;
        OK = 1;
        ERROR = 2;
    }

    enum ErrorReason {
        REASON_UNDEFINED = 0;
        UNSUPPORTED = 1;
        INVALID_DEVICE_ID = 2;
        INVALID_PORT_TYPE = 3;
        TIMEOUT = 4;
        INVALID_REQ_TYPE = 5;
        INTERNAL_ERROR = 6;
        INVALID_DEVICE = 7;
    }
    Status status = 1;
    ErrorReason errReason = 2;

    oneof response {
        GetDistanceResponse distance = 3;
        GetOnuUniInfoResponse uniInfo = 4;
        GetOltPortCountersResponse portCoutners = 5;
        GetOnuPonOpticalInfoResponse onuOpticalInfo = 6;
        GetOnuEthernetBridgePortHistoryResponse ethBridgePortInfo = 7;
        GetOnuFecHistoryResponse fecHistory = 8;
        GetOnuCountersResponse onuPonCounters = 9;
        GetOmciEthernetFrameExtendedPmResponse onuCounters = 10;
        GetRxPowerResponse rxPower = 11; // This is DEPRECATED
        GetOnuOmciTxRxStatsResponse onuOmciStats = 12;
        GetOltRxPowerResponse oltRxPower = 13;
        GetOnuOmciActiveAlarmsResponse onuActiveAlarms = 14;
        GetOffloadedAppsStatisticsResponse offloadedAppsStats = 15;
    }
}

// AppOffloadConfig is the configuration for offloading applications to the OLT and has OLT wide configuration.
message AppOffloadConfig {
    bool enableDHCPv4RA = 1;
    bool enableDHCPv6RA = 2;
    bool enablePPPoEIA = 3;
    // Follows the same as the BBF Access Node Id defined in https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-subscriber-profiles.yang
    string accessNodeID = 4;
}

// AppOffloadOnuConfig has Onu specfic configuration which the OLT runs applications which have been offloaded.
message AppOffloadOnuConfig {
    string onuDeviceId = 1;

    message PerUniConfig {
        // As per the BBF Agent Remote Id defined in https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-pppoe-intermediate-agent-profile-common.yang
        string agentRemoteID = 2;
        // As per the BBF Agent Circuit Id defined in https://github.com/BroadbandForum/yang/blob/master/standard/networking/bbf-pppoe-intermediate-agent-profile-common.yang
        string agentCircuitID = 3;
        // The id of the UNI on the Onu for which this configuration is relevant. The UNI ids are numbered from 0 to n depending on the number of UNI ports on the ONU.
        uint32 onuUniId = 4;
    }

    repeated PerUniConfig perUniInfo = 5;

}

message SetValueRequest {
    oneof request {
        config.AlarmConfig alarm_config = 1;
        AppOffloadConfig app_offload_config = 2;
        AppOffloadOnuConfig app_offload_onu_config = 3;
    }
}

message SetValueResponse {
    enum Status {
        STATUS_UNDEFINED = 0;
        OK = 1;
        ERROR = 2;
    }

    enum ErrorReason {
        REASON_UNDEFINED = 0;
        UNSUPPORTED = 1;
        INVALID_DEVICE_ID = 2;
        INVALID_ONU_DEVICE_ID = 3;
        INVALID_UNI_ID = 4;
    }
    Status status = 1;
    ErrorReason errReason = 2;

    // As of now we don't have any explicit response for the supported SetValueRequests
    // to be used later
    //oneof response {
    //
    //}
}

message SingleGetValueRequest {
    string targetId = 1;
    GetValueRequest request = 2;
}

message SingleGetValueResponse{
    GetValueResponse response = 1;
}

message SingleSetValueRequest {
    string targetId = 1;
    SetValueRequest request = 2;
}
message SingleSetValueResponse {
    SetValueResponse response = 1;
}

// Extension is a service to get and set specific attributes
service Extension {
    // Get a single attribute
    rpc GetExtValue(SingleGetValueRequest) returns (SingleGetValueResponse);
    // Set a single attribute
    rpc SetExtValue(SingleSetValueRequest) returns (SingleSetValueResponse);
}