syntax = "proto3";

package proto;

option go_package = "machineapi";
option java_multiple_files = true;
option java_outer_classname = "MachineApi";
option java_package = "com.machine.api";

import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";

// The machine service definition.
service Machine {
  rpc CopyOut(CopyOutRequest) returns (stream StreamingData);
  rpc Mounts(google.protobuf.Empty) returns (MountsReply);
  rpc LS(LSRequest) returns (stream FileInfo);
  rpc Reboot(google.protobuf.Empty) returns (RebootReply);
  rpc Reset(google.protobuf.Empty) returns (ResetReply);
  rpc Shutdown(google.protobuf.Empty) returns (ShutdownReply);
  rpc Upgrade(UpgradeRequest) returns (UpgradeReply);
  rpc ServiceList(google.protobuf.Empty) returns (ServiceListReply);
  rpc ServiceStart(ServiceStartRequest) returns (ServiceStartReply);
  rpc ServiceStop(ServiceStopRequest) returns (ServiceStopReply);
  rpc ServiceRestart(ServiceRestartRequest) returns (ServiceRestartReply);

  rpc Start(StartRequest) returns (StartReply) {
    option deprecated = true;
  };
  rpc Stop(StopRequest) returns (StopReply) {
    option deprecated = true;
  };

  rpc Version(google.protobuf.Empty) returns (VersionReply);
}

// The response message containing the reboot status.
message RebootReply {}

// The response message containing the restart status.
message ResetReply {}

// The response message containing the shutdown status.
message ShutdownReply {}

message UpgradeRequest {
  string image = 1;
}

message UpgradeReply {
  string ack = 1;
}

message ServiceListReply {
  repeated ServiceInfo services = 1;
}

message ServiceInfo {
  string id = 1;
  string state = 2;
  ServiceEvents events = 3;
  ServiceHealth health = 4;
}

message ServiceEvents {
  repeated ServiceEvent events = 1;
}

message ServiceEvent {
  string msg = 1;
  string state = 2;
  google.protobuf.Timestamp ts = 3;
}

message ServiceHealth {
  bool unknown = 1;
  bool healthy = 2;
  string last_message = 3;
  google.protobuf.Timestamp last_change = 4;
}

message ServiceStartRequest {
  string id = 1;
}

message ServiceStartReply {
  string resp = 1;
}

message ServiceStopRequest {
  string id = 1;
}

message ServiceStopReply {
  string resp = 1;
}

message ServiceRestartRequest {
  string id = 1;
}

message ServiceRestartReply {
  string resp = 1;
}

message StartRequest {
  option deprecated = true;
  string id = 1;
}

message StartReply {
  option deprecated = true;
  string resp = 1;
}

message StopRequest {
  option deprecated = true;
  string id = 1;
}

message StopReply {
  option deprecated = true;
  string resp = 1;
}

// StreamingData is used to stream back responses
message StreamingData {
  bytes bytes = 1;
  string errors = 2;
}

// CopyOutRequest describes a request to copy data out of Talos node
//
// CopyOut produces .tar.gz archive which is streamed back to the caller
message CopyOutRequest {
  // Root path to start copying data out, it might be either a file or directory
  string root_path = 1;
}

// LSRequest describes a request to list the contents of a directory
message LSRequest {
  // Root indicates the root directory for the list.  If not indicated, '/' is
  // presumed.
  string root = 1;
  // Recurse indicates that subdirectories should be recursed.
  bool recurse = 2;
  // RecursionDepth indicates how many levels of subdirectories should be
  // recursed.  The default (0) indicates that no limit should be enforced.
  int32 recursion_depth = 3;
}

// FileInfo describes a file or directory's information
message FileInfo {
  // Name is the name (including prefixed path) of the file or directory
  string name = 1;
  // Size indicates the number of bytes contained within the file
  int64 size = 2;
  // Mode is the bitmap of UNIX mode/permission flags of the file
  uint32 mode = 3;
  // Modified indicates the UNIX timestamp at which the file was last modified
  int64 modified = 4; // TODO: unix timestamp or include proto's Date type
  // IsDir indicates that the file is a directory
  bool is_dir = 5;
  // Error describes any error encountered while trying to read the file
  // information.
  string error = 6;
  // Link is filled with symlink target
  string link = 7;
  // RelativeName is the name of the file or directory relative to the RootPath
  string relative_name = 8;
}

// The response message containing the requested df stats.
message MountsReply {
  repeated MountStat stats = 1;
}

// The response message containing the requested processes.
message MountStat {
  string filesystem = 1;
  uint64 size = 2;
  uint64 available = 3;
  string mounted_on = 4;
}

message VersionReply {
  string tag = 1;
  string sha = 2;
  string built = 3;
  string go_version = 4;
  string os = 5;
  string arch = 6;
}