syntax = "proto3";

import "google/protobuf/empty.proto";

option go_package = "github.com/cirruslabs/tart-guest-agent/pkg/v1";

service Agent {
  rpc Exec(stream ExecRequest) returns (stream ExecResponse);
  rpc Signal(SignalRequest) returns (google.protobuf.Empty);
  rpc ResolveIP(ResolveIPRequest) returns (ResolveIPResponse);
}

message ExecRequest {
  message Command {
    string name = 1;
    repeated string args = 2;
    bool interactive = 3;
    bool tty = 4;
    TerminalSize terminal_size = 5;
    bool detach = 6;
    map<string, string> env = 7;
    string workdir = 8;
    string user = 9;
  }

  oneof type {
    Command command = 1;
    IOChunk standard_input = 2;
    TerminalSize terminal_resize = 3;
  }
}

message ExecResponse {
  message Exit {
    int32 code = 1;
  }

  message Started {
    string exec_id = 1;
  }

  oneof type {
    Exit exit = 1;
    IOChunk standard_output = 2;
    IOChunk standard_error = 3;
    Started started = 4;
  }
}

message TerminalSize {
  uint32 rows = 1;
  uint32 cols = 2;
}

message IOChunk {
  bytes data = 1;
}

message ResolveIPRequest {
  // nothing for now
}

message ResolveIPResponse {
  string ip = 1;
}

message SignalRequest {
  enum Signal {
    SIGNAL_UNSPECIFIED = 0;
    SIGNAL_SIGTERM = 1;
    SIGNAL_SIGKILL = 2;
  }

  string exec_id = 1;
  Signal signal = 2;
}