// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.

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

package piecestoreroutes;

import "gogo.proto";
import "google/protobuf/duration.proto";

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) {}
  rpc Dashboard(DashboardReq) returns (stream DashboardStats) {}
}

enum BandwidthAction {
  PUT = 0;
  GET = 1;
  GET_AUDIT = 2;
  GET_REPAIR = 3;
  PUT_REPAIR = 4;
}

message PayerBandwidthAllocation { // Payer refers to satellite
  bytes satellite_id = 1 [(gogoproto.customtype) = "NodeID", (gogoproto.nullable) = false]; // Satellite Identity
  bytes uplink_id = 2 [(gogoproto.customtype) = "NodeID", (gogoproto.nullable) = false];    // Uplink Identity
  int64 max_size = 3;            // Max amount of data the satellite will pay for in bytes
  int64 expiration_unix_sec = 4; // Unix timestamp for when data is no longer being paid for
  string serial_number = 5;      // Unique serial number
  BandwidthAction action = 6;    // GET or PUT
  int64 created_unix_sec = 7;    // Unix timestamp for when PayerbandwidthAllocation was created
  
  repeated bytes certs = 8; // Satellite certificate chain 
  bytes signature = 9;      // Proof that the data was signed by the Satellite
}

message RenterBandwidthAllocation { // Renter refers to uplink
  PayerBandwidthAllocation payer_allocation = 1 [(gogoproto.nullable) = false]; // Bandwidth Allocation from Satellite
  int64 total = 2;                               // Total Bytes Stored
  bytes storage_node_id = 3 [(gogoproto.customtype) = "NodeID", (gogoproto.nullable) = false]; // Storage Node Identity

  repeated bytes certs = 4;   // Uplink certificate chain
  bytes signature = 5;        // Proof that the data was signed by the Uplink
}

message PieceStore {
  message PieceData {
    // TODO: may want to use customtype and fixed-length byte slice
    string id = 1;
    int64 expiration_unix_sec = 2;
    bytes content = 3;
  }

  RenterBandwidthAllocation bandwidth_allocation = 1;
  PieceData piece_data = 2;
  SignedMessage authorization = 3 [deprecated=true]; 
  SignedHash signed_hash = 4;
}

message PieceId {
  // TODO: may want to use customtype and fixed-length byte slice
  string id = 1;

  SignedMessage authorization = 2 [deprecated=true];
  bytes satellite_id = 3 [(gogoproto.customtype) = "NodeID", (gogoproto.nullable) = false];
}

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

message PieceRetrieval {
  message PieceData {
    // TODO: may want to use customtype and fixed-length byte slice
    string id = 1;
    int64 piece_size = 2;
    int64 offset = 3;
  }

  RenterBandwidthAllocation bandwidth_allocation = 1;
  PieceData piece_data = 2;
  SignedMessage authorization = 3 [deprecated=true];
}

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

message PieceDelete {
  // TODO: may want to use customtype and fixed-length byte slice
  string id = 1;
  SignedMessage authorization = 3 [deprecated=true];
  bytes satellite_id = 4 [(gogoproto.customtype) = "NodeID", (gogoproto.nullable) = false];
}

message PieceDeleteSummary {
  string message = 1;
}

message PieceStoreSummary {
  string message = 1;
  int64 total_received = 2;
  SignedHash signed_hash = 3;
}

message StatsReq {}

message StatSummary {
  int64 used_space = 1;
  int64 available_space = 2;
  int64 used_bandwidth = 3;
  int64 available_bandwidth = 4;
}

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

message DashboardReq { }

message DashboardStats {
  string node_id = 1;
  int64 node_connections = 2;
  string bootstrap_address = 3;
  string internal_address = 4;
  string external_address = 5;
  StatSummary stats = 6;
  bool connection = 7;
  google.protobuf.Duration uptime = 8;
}

message SignedHash {
  bytes hash = 1;
  
  repeated bytes certs = 2;
  bytes signature = 3;
}