test.proto

syntax = "proto3";

package v1;

option go_package = "github.com/prysmaticlabs/protoc-gen-go-cast/test";

import "google/protobuf/descriptor.proto";

extend google.protobuf.FieldOptions {
  string ssz_size = 50000;
  string ssz_max = 50001;
  string spec_name = 50002;
  string cast_type = 50003;
}

// The greeting service definition.
service Greeter {
  // Sends a greeting
  rpc SayHello (HelloRequest) returns (HelloReply) {}
  rpc ValidatorIndex(HelloRequest) returns (HelloReply) {}
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings
message HelloReply {
  string message = 1;
}

message Deposit {
  message Data {
    // 48 byte BLS public key of the validator.
    bytes public_key = 1 [(ssz_size) = "48", (spec_name) = "pubkey"];

    // A 32 byte hash of the withdrawal address public key.
    bytes withdrawal_credentials = 2 [(ssz_size) = "32"];

    // Deposit amount in gwei.
    uint64 amount = 3;

    // 96 byte signature from the validators public key.
    bytes signature = 4 [(ssz_size) = "96"];
  }

  // 32 byte roots in the deposit tree branch.
  repeated bytes proof = 1 [(ssz_size) = "33,32"];

  Data data = 2;
}

message Attestation {
  // A bitfield representation of validator indices that have voted exactly
  // the same vote and have been aggregated into this attestation.
  bytes aggregation_bits = 1 [(ssz_max) = "2048", (cast_type) = "github.com/prysmaticlabs/go-bitfield.Bitlist"];

  AttestationData data = 2;

  // 96 byte BLS aggregate signature.
  bytes signature = 3 [(ssz_size) = "96"];
}

message AggregateAttestationAndProof {
  // The aggregator index that submitted this aggregated attestation and proof.
  uint64 aggregator_index = 1;

  // The aggregated attestation that was submitted.
  Attestation aggregate = 3;

  // 96 byte selection proof signed by the aggregator, which is the signature of the slot to aggregate.
  bytes selection_proof = 2 [(ssz_size) = "96"];
}

message SignedAggregateAttestationAndProof {
  // The aggregated attestation and selection proof itself.
  AggregateAttestationAndProof message = 1;

  // 96 byte BLS aggregate signature signed by the aggregator over the message.
  bytes signature = 2 [(ssz_size) = "96"];
}

message AttestationData {
  // Attestation data includes information on Casper the Friendly Finality Gadget's votes
  // See: https://arxiv.org/pdf/1710.09437.pdf

  // Slot of the attestation attesting for.
  uint64 slot = 1;

  // The committee index that submitted this attestation.
  uint64 committee_index = 2;

  // 32 byte root of the LMD GHOST block vote.
  bytes beacon_block_root = 3 [(ssz_size) = "32"];


  message Checkpoint {
    // A checkpoint is every epoch's first slot. The goal of Casper FFG
    // is to link the check points together for justification and finalization.

    // Epoch the checkpoint references.
    optional uint64 epoch = 1;

    // Block root of the checkpoint references.
    bytes validator_index = 2 [(ssz_max) = "2048", (cast_type) = "github.com/prysmaticlabs/go-bitfield.Bitlist"];
  }

  // The most recent justified checkpoint in the beacon state
  Checkpoint source = 4;

  // The checkpoint attempting to be justified for the current epoch and its epoch boundary block
  Checkpoint target = 5;
}


message RealCheckpoint {
  // A checkpoint is every epoch's first slot. The goal of Casper FFG
  // is to link the check points together for justification and finalization.

  // Epoch the checkpoint references.
  optional uint64 epoch = 1;

  // Block root of the checkpoint references.
  bytes validator_index = 2;
}

message ListAttestationsRequest {
  // TODO(preston): Test oneof with gRPC gateway.

  oneof query_filter {
    // Filter attestations by epoch processed.
    bytes epoch = 1 [(cast_type) = "github.com/prysmaticlabs/go-bitfield.Bitlist"];

    // Optional criteria to retrieve attestations from 0 epoch.
    bool genesis_epoch = 2;
  }

  // The maximum number of Attestations to return in the response.
  // This field is optional.
  int32 page_size = 3;

  // A pagination token returned from a previous call to `ListAttestations`
  // that indicates where this listing should continue from.
  // This field is optional.
  string page_token = 4;
}