syntax = "proto3";

package debugd;

option go_package = "github.com/edgelesssys/constellation/v2/debugd/service";

service Debugd {
  rpc SetInfo(SetInfoRequest) returns (SetInfoResponse) {}
  rpc GetInfo(GetInfoRequest) returns (GetInfoResponse) {}
  rpc UploadFiles(stream FileTransferMessage) returns (UploadFilesResponse) {}
  rpc DownloadFiles(DownloadFilesRequest) returns (stream FileTransferMessage) {}
  rpc UploadSystemServiceUnits(UploadSystemdServiceUnitsRequest) returns (UploadSystemdServiceUnitsResponse) {}
}

message SetInfoRequest {
  repeated Info info = 1;
}

message SetInfoResponse {
  SetInfoStatus status = 1;
}

enum SetInfoStatus {
  SET_INFO_SUCCESS = 0;
  SET_INFO_ALREADY_SET = 1;
}

message GetInfoRequest {}

message GetInfoResponse {
  repeated Info info = 1;
}

message Info {
  string key = 1;
  string value = 2;
}

message DownloadFilesRequest {}

message FileTransferMessage {
  oneof kind {
    FileTransferHeader header = 1; // start of transfer
    Chunk chunk = 2; // file content as chunks
  }
}

message FileTransferHeader {
  string targetPath = 1;
  uint32 mode = 3;
  optional string overrideServiceUnit = 4;
}

message Chunk {
  bytes content = 1;
  bool last = 2;
}

message UploadFilesResponse {
  UploadFilesStatus status = 1;
}

enum UploadFilesStatus {
  UPLOAD_FILES_SUCCESS = 0;
  UPLOAD_FILES_UPLOAD_FAILED = 1;
  UPLOAD_FILES_ALREADY_STARTED = 2;
  UPLOAD_FILES_ALREADY_FINISHED = 3;
  UPLOAD_FILES_START_FAILED = 4;
}

message ServiceUnit {
  string name = 1;
  string contents = 2;
}

message UploadSystemdServiceUnitsRequest {
  repeated ServiceUnit units = 1;
}

message UploadSystemdServiceUnitsResponse {
  UploadSystemdServiceUnitsStatus status = 1;
}

enum UploadSystemdServiceUnitsStatus {
  UPLOAD_SYSTEMD_SERVICE_UNITS_SUCCESS = 0;
  UPLOAD_SYSTEMD_SERVICE_UNITS_FAILURE = 1;
}