syntax = "proto3";

package queue;

import "google/protobuf/timestamp.proto";

service Queue {
  rpc Push(PushRequest) returns (PushResponse);
  rpc PushMany(stream PushRequest) returns (PushResponse);
  rpc Pop(PopRequest) returns (PopResponse);
  rpc Drain(DrainRequest) returns (stream PopResponse);
}

message Value {
  uint64 payload = 1;
  optional google.protobuf.Timestamp updated_at = 2;
}

message PushRequest {
  Value value = 1;
}

message PushResponse {
}

message PopRequest {
}

message PopResponse {
  optional Value value = 1;
}

message DrainRequest {
}