syntax = "proto3";

option go_package = ".;proto";

package proto;

service AttachmentService {
  rpc GetAttachment(GetAttachmentRequest) returns (GetAttachmentResponse) {}
  rpc ListAttachment(ListAttachmentRequest) returns (ListAttachmentResponse) {}
  rpc UpdateVisibility(UpdateVisibilityRequest) returns (UpdateVisibilityResponse) {}
  rpc UpdateUsage(UpdateUsageRequest) returns (UpdateUsageResponse) {}
  rpc DeleteAttachment(DeleteAttachmentRequest) returns (DeleteAttachmentResponse) {}
}

message GetAttachmentRequest {
  optional uint64 id = 1;
  optional string rid = 2;
  optional uint64 user_id = 3;
}

message GetAttachmentResponse {
  optional bytes attachment = 1;
}

message ListAttachmentRequest {
  repeated uint64 id = 1;
  repeated string rid = 2;
  optional uint64 user_id = 3;
}

message ListAttachmentResponse {
  repeated bytes attachments = 1;
}

message UpdateVisibilityRequest {
  repeated uint64 id = 1;
  repeated string rid = 2;
  bool is_indexable = 3;
  optional uint64 user_id = 4;
}

message UpdateVisibilityResponse {
  int32 count = 1;
}

message UpdateUsageRequest {
  repeated uint64 id = 1;
  repeated string rid = 2;
  int64 delta = 3;
}

message UpdateUsageResponse {
  int32 count = 1;
}

message DeleteAttachmentRequest {
  repeated uint64 id = 1;
  repeated string rid = 2;
  optional uint64 user_id = 3;
}

message DeleteAttachmentResponse {
  int32 count = 1;
}