syntax = "proto3";

package dbproto;

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


// Same as bep.FileInfo, but without blocks
message FileInfoTruncated {
  string name = 1;
  int64 size = 3;
  int64 modified_s = 5;
  uint64 modified_by = 12;
  bep.Vector version = 9;
  int64 sequence = 10;
  reserved 16; // blocks
  string symlink_target = 17;
  bytes blocks_hash = 18;
  bytes encrypted = 19;
  bep.FileInfoType type = 2;
  uint32 permissions = 4;
  int32 modified_ns = 11;
  int32 block_size = 13;
  bep.PlatformData platform = 14;

  // The local_flags fields stores flags that are relevant to the local
  // host only. It is not part of the protocol, doesn't get sent or
  // received (we make sure to zero it), nonetheless we need it on our
  // struct and to be able to serialize it to/from the database.
  uint32 local_flags = 1000;

  // The version_hash is an implementation detail and not part of the wire
  // format.
  bytes version_hash = 1001;

  // The time when the inode was last changed (i.e., permissions, xattrs
  // etc changed). This is host-local, not sent over the wire.
  int64 inode_change_ns = 1002;

  // The size of the data appended to the encrypted file on disk. This is
  // host-local, not sent over the wire.
  int32 encryption_trailer_size = 1003;

  bool deleted = 6;
  bool invalid = 7;
  bool no_permissions = 8;
}


message FileVersion {
  bep.Vector version = 1;
  bool deleted = 2;
  repeated bytes devices = 3;
  repeated bytes invalid_devices = 4;
}

message VersionList {
  repeated FileVersion versions = 1;
}

// BlockList is the structure used to store block lists
message BlockList {
  repeated bep.BlockInfo blocks = 1;
}

// IndirectionHashesOnly is used to only unmarshal the indirection hashes
// from a FileInfo
message IndirectionHashesOnly {
  bytes blocks_hash = 18;
  bytes version_hash = 1001;
}

// For each folder and device we keep one of these to track the current
// counts and sequence. We also keep one for the global state of the folder.
message Counts {
  int32 files = 1;
  int32 directories = 2;
  int32 symlinks = 3;
  int32 deleted = 4;
  int64 bytes = 5;
  int64 sequence = 6; // zero for the global state
  bytes device_id = 17; // device ID for remote devices, or special values for local/global
  uint32 local_flags = 18; // the local flag for this count bucket
}

message CountsSet {
  repeated Counts counts = 1;
  int64 created = 2; // unix nanos
}

message ObservedFolder {
  google.protobuf.Timestamp time = 1;
  string label = 2;
  bool receive_encrypted = 3;
  bool remote_encrypted = 4;
}

message ObservedDevice {
  google.protobuf.Timestamp time = 1;
  string name = 2;
  string address = 3;
}