// 13/WAKU2-STORE rfc: https://rfc.vac.dev/spec/13/
// Protocol identifier: /vac/waku/store/2.0.0-beta4

syntax = "proto3";

import "message.proto";

message Index {
  bytes digest = 1;
  sint64 receiver_time = 2;
  sint64 sender_time = 3;
  string pubsub_topic = 4;
}

message PagingInfo {
  optional uint64 page_size = 1;
  optional Index cursor = 2;
  enum Direction {
    BACKWARD = 0;
    FORWARD = 1;
  }
  optional Direction direction = 3;
}

message ContentFilter {
  string content_topic = 1;
}

message HistoryQuery {
  // The first field is reserved for future use
  optional string pubsub_topic = 2;
  repeated ContentFilter content_filters = 3;
  optional PagingInfo paging_info = 4;
  optional sint64 start_time = 5;
  optional sint64 end_time = 6;
}

message HistoryResponse {
  // The first field is reserved for future use
  repeated WakuMessage messages = 2;
  optional PagingInfo paging_info = 3;
  enum HistoryError {
    NONE = 0;
    INVALID_CURSOR = 1;
  }
  HistoryError error = 4;
}

message HistoryRpc {
  string request_id = 1;
  optional HistoryQuery query = 2;
  optional HistoryResponse response = 3;
}