delta

type BaseSelectionType int

type BinaryDelta struct {
	// contains filtered or unexported fields
}

type DeltaAlgorithm interface {
	CreateDelta(baseData, targetData []byte) ([]byte, error)
	ApplyDelta(baseData, deltaData []byte) ([]byte, error)
	CompressionRatio(baseData, targetData, deltaData []byte) float64
}

type DeltaChain struct {
	BaseHash    string        `json:"base_hash"`    // Hash of base object
	Deltas      []*DeltaEntry `json:"deltas"`       // Ordered list of deltas
	TotalSize   int           `json:"total_size"`   // Total size of all deltas
	ChainLength int           `json:"chain_length"` // Current chain length
	LastAccess  time.Time     `json:"last_access"`  // Last access time
}

type DeltaCompression struct {
	// contains filtered or unexported fields
}

type DeltaEntry struct {
	Hash         string    `json:"hash"`          // Hash of the delta object
	BaseHash     string    `json:"base_hash"`     // Hash of the base object
	DeltaData    []byte    `json:"delta_data"`    // Compressed delta
	OriginalSize int       `json:"original_size"` // Size of original object
	DeltaSize    int       `json:"delta_size"`    // Size of delta
	CreatedAt    time.Time `json:"created_at"`    // When delta was created
	AccessCount  int64     `json:"access_count"`  // How often accessed
	ChainDepth   int       `json:"chain_depth"`   // Depth in delta chain
}

type DeltaInstruction struct {
	Type   InstructionType `json:"type"`
	Offset int             `json:"offset,omitempty"` // For copy instructions
	Length int             `json:"length"`
	Data   []byte          `json:"data,omitempty"` // For add instructions
}

type DeltaMatch struct {
	BaseStart   int `json:"base_start"`
	TargetStart int `json:"target_start"`
	Length      int `json:"length"`
}

type DeltaPacket struct {
	Type         DeltaType           `json:"type"`
	BaseSize     int                 `json:"base_size,omitempty"`
	TargetSize   int                 `json:"target_size,omitempty"`
	Length       int                 `json:"length,omitempty"`       // For full type
	Data         []byte              `json:"data,omitempty"`         // For full type
	Instructions []*DeltaInstruction `json:"instructions,omitempty"` // For delta type
}

type DeltaStats struct {
	TotalObjects        int64         `json:"total_objects"`
	DeltaObjects        int64         `json:"delta_objects"`
	BaseObjects         int64         `json:"base_objects"`
	TotalOriginalSize   int64         `json:"total_original_size"`
	TotalCompressedSize int64         `json:"total_compressed_size"`
	CompressionRatio    float64       `json:"compression_ratio"`
	AverageChainLength  float64       `json:"average_chain_length"`
	DeltaCreations      int64         `json:"delta_creations"`
	BasePromotions      int64         `json:"base_promotions"`
	ChainBreaks         int64         `json:"chain_breaks"`
	DecompressionTime   time.Duration `json:"decompression_time"`
	CompressionTime     time.Duration `json:"compression_time"`
}

type DeltaType byte

type InstructionType byte

type VCDIFFDelta struct {
	// contains filtered or unexported fields
}