// Copyright (C) 2018 Storj Labs, Inc.
// See LICENSE for copying information.

syntax = "proto3";
option go_package = "pb";

package piecestoreroutes;

service PieceStoreRoutes {
  rpc Piece(PieceId) returns (PieceSummary) {}

  rpc Retrieve(stream PieceRetrieval) returns (stream PieceRetrievalStream) {}

  rpc Store(stream PieceStore) returns (PieceStoreSummary) {}

  rpc Delete(PieceDelete) returns (PieceDeleteSummary) {}

  rpc Stats(StatsReq) returns (StatSummary) {}
}

message PayerBandwidthAllocation {
  message Data {
    bytes payer = 1;
    bytes renter = 2;
    int64 max_size = 3;
    int64 expiration_unix_sec = 4;
    string serial_number = 5;
  }
  bytes signature = 1;
  bytes data = 2; // Serialization of above Data Struct
}

message RenterBandwidthAllocation {
  message Data {
    PayerBandwidthAllocation payer_allocation = 1;
    int64 total = 2;
  }

  bytes signature = 1;
  bytes data = 2; // Serialization of above Data Struct
}

message PieceStore {
  message PieceData {
    string id = 1;
    int64 expiration_unix_sec = 2;
    bytes content = 3;
  }

  RenterBandwidthAllocation bandwidthallocation = 1;
  PieceData piecedata = 2;
  SignedMessage authorization = 3;
}

message PieceId {
  string id = 1;
}

message PieceSummary {
  string id = 1;
  int64 size = 2;
  int64 expiration_unix_sec = 3;
}

message PieceRetrieval {
  message PieceData {
    string id = 1;
    int64 size = 2;
    int64 offset = 3;
  }

  RenterBandwidthAllocation bandwidthallocation = 1;
  PieceData pieceData = 2;
  SignedMessage authorization = 3;
}

message PieceRetrievalStream {
  int64 size = 1;
  bytes content = 2;
}

message PieceDelete {
  string id = 1;
  SignedMessage authorization = 3;
}

message PieceDeleteSummary {
  string message = 1;
}

message PieceStoreSummary {
  string message = 1;
  int64 totalReceived = 2;
}

message StatsReq {}

message StatSummary {
  int64 usedSpace = 1;
  int64 availableSpace = 2;
  int64 usedBandwidth = 3;
  int64 availableBandwidth = 4;
}

message SignedMessage {
  bytes data = 1;
  bytes signature = 2;
  bytes publicKey = 3;
}