core

type Chunk struct {
	Hash  Hash
	Size  uint32
	Data  []byte
	Flags ChunkFlag
}

type ChunkFlag uint8

type Config struct {
	// Version is the schema version of the config file. Omitted from JSON
	// when zero (legacy files) so existing config.json files load unchanged.
	Version int        `json:"version,omitempty"`
	User    UserConfig `json:"user"`
	Core    CoreConfig `json:"core"`
}

type CoreConfig struct {
	Compression      bool   `json:"compression"`
	CompressionLevel int    `json:"compression_level"`
	IgnoreFile       string `json:"ignore_file"`
	AutoSaveInterval int    `json:"auto_save_interval"`
	AutoSaveKeep     int    `json:"auto_save_keep"`
	// TrustMtime, when true, enables the (size, mtime) fast path in
	// CreateSnapshot: a file whose size and mtime match the index entry is
	// reused without re-chunking. This is a performance optimization that
	// trades correctness for speed — tools that preserve mtime while
	// changing content (cp -p, rsync --times, editor atomic-save that
	// restores mtime) would silently cause stale chunks to be reused.
	// Defaults to false (safe): every save re-chunks every file. Users who
	// understand the risk and need the speedup can set this true via
	// config.json or DRIFT_TRUST_MTIME=1.
	TrustMtime bool `json:"trust_mtime,omitempty"`
}

type FileEntry struct {
	Path     string
	Mode     FileMode
	Size     int64
	ModTime  int64 // unix timestamp in nanoseconds (time.UnixNano())
	Chunks   []Hash
	Hash     Hash
	Metadata *FileMetadata
}

type FileEntryProto struct {
	Path        string            `protobuf:"bytes,1,opt,name=path,proto3" json:"path,omitempty"`
	Mode        uint32            `protobuf:"varint,2,opt,name=mode,proto3" json:"mode,omitempty"`
	Size        int64             `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
	ModTime     int64             `protobuf:"varint,4,opt,name=mod_time,json=modTime,proto3" json:"mod_time,omitempty"`
	ChunkHashes [][]byte          `protobuf:"bytes,5,rep,name=chunk_hashes,json=chunkHashes,proto3" json:"chunk_hashes,omitempty"` // each is 32 bytes BLAKE3 hash
	MimeType    *string           `protobuf:"bytes,6,opt,name=mime_type,json=mimeType,proto3,oneof" json:"mime_type,omitempty"`
	FileHash    []byte            `protobuf:"bytes,7,opt,name=file_hash,json=fileHash,proto3" json:"file_hash,omitempty"` // 32 bytes BLAKE3 hash of the file
	Extra       map[string]string ``                                                                                      // optional metadata key-value pairs
	/* 137-byte string literal not displayed */
	// contains filtered or unexported fields
}

type FileMetadata struct {
	MIMEType string
	Extra    map[string]string
}

type FileMode uint32

type Hash [32]byte

type Index struct {
	Entries   []IndexEntry
	UpdatedAt int64
}

type IndexEntry struct {
	Path    string
	Hash    Hash
	Size    int64
	ModTime int64
	Chunks  []Hash
}

type IndexEntryProto struct {
	Path        string   `protobuf:"bytes,1,opt,name=path,proto3" json:"path,omitempty"`
	Hash        []byte   `protobuf:"bytes,2,opt,name=hash,proto3" json:"hash,omitempty"` // 32 bytes BLAKE3 hash
	Size        int64    `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
	ModTime     int64    `protobuf:"varint,4,opt,name=mod_time,json=modTime,proto3" json:"mod_time,omitempty"`
	ChunkHashes [][]byte `protobuf:"bytes,5,rep,name=chunk_hashes,json=chunkHashes,proto3" json:"chunk_hashes,omitempty"` // each is 32 bytes BLAKE3 hash
	// contains filtered or unexported fields
}

type IndexProto struct {
	Entries   []*IndexEntryProto `protobuf:"bytes,1,rep,name=entries,proto3" json:"entries,omitempty"`
	UpdatedAt int64              `protobuf:"varint,2,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty"`
	// contains filtered or unexported fields
}

type RefType string

type Reference struct {
	Name   string
	Type   RefType
	Target Hash
	SymRef string
}

type Snapshot struct {
	ID        SnapshotID
	PrevID    *SnapshotID // nil for the first commit
	Message   string
	Author    string
	Timestamp int64 // unix timestamp
	Files     []FileEntry
	Tags      []string
	TotalSize int64
}

type SnapshotID struct {
	Hash Hash
}

type SnapshotManifest struct {
	Id           []byte   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`                       // SnapshotID.Hash (32 bytes)
	PrevId       []byte   `protobuf:"bytes,2,opt,name=prev_id,json=prevId,proto3" json:"prev_id,omitempty"` // optional, nil for first commit
	Message      string   `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
	Author       string   `protobuf:"bytes,4,opt,name=author,proto3" json:"author,omitempty"`
	Timestamp    int64    `protobuf:"varint,5,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
	Tags         []string `protobuf:"bytes,6,rep,name=tags,proto3" json:"tags,omitempty"`
	TotalSize    int64    `protobuf:"varint,7,opt,name=total_size,json=totalSize,proto3" json:"total_size,omitempty"`
	FilesChanged int32    `protobuf:"varint,8,opt,name=files_changed,json=filesChanged,proto3" json:"files_changed,omitempty"` // file count
	// contains filtered or unexported fields
}

type SnapshotProto struct {
	IdHash     []byte            `protobuf:"bytes,1,opt,name=id_hash,json=idHash,proto3" json:"id_hash,omitempty"`                     // 32 bytes
	PrevIdHash []byte            `protobuf:"bytes,2,opt,name=prev_id_hash,json=prevIdHash,proto3,oneof" json:"prev_id_hash,omitempty"` // 32 bytes, nil for first commit
	Message    string            `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
	Author     string            `protobuf:"bytes,4,opt,name=author,proto3" json:"author,omitempty"`
	Timestamp  int64             `protobuf:"varint,5,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
	Files      []*FileEntryProto `protobuf:"bytes,6,rep,name=files,proto3" json:"files,omitempty"`
	Tags       []string          `protobuf:"bytes,7,rep,name=tags,proto3" json:"tags,omitempty"`
	TotalSize  int64             `protobuf:"varint,8,opt,name=total_size,json=totalSize,proto3" json:"total_size,omitempty"`
	// contains filtered or unexported fields
}

type SnapshotSummary struct {
	ID        SnapshotID
	PrevID    *SnapshotID // nil for the first commit
	Message   string
	Author    string
	Timestamp int64 // unix timestamp
	Tags      []string
	TotalSize int64
}

type UserConfig struct {
	Name  string
	Email string
}