v1

type Annotation struct {
	Key   string `parquet:","`
	Value string `parquet:","`
}

type Annotations struct {
	Keys   []string
	Values []string
}

type DownsampledProfileRow parquet.Row

type FunctionPersister struct{}

type InMemoryFunction struct {
	// Unique nonzero id for the function.
	Id uint64
	// Name of the function, in human-readable form if available.
	Name uint32
	// Name of the function, as identified by the system.
	// For instance, it can be a C++ mangled name.
	SystemName uint32
	// Source file containing the function.
	Filename uint32
	// Line number in source file.
	StartLine uint32
}

type InMemoryLine struct {
	// The id of the corresponding profile.Function for this line.
	FunctionId uint32
	// Line number in source code.
	Line int32
}

type InMemoryLocation struct {
	// Unique nonzero id for the location.  A profile could use
	// instruction addresses or any integer sequence as ids.
	Id uint64
	// The instruction address for this location, if available.  It
	// should be within [Mapping.memory_start...Mapping.memory_limit]
	// for the corresponding mapping. A non-leaf address may be in the
	// middle of a call instruction. It is up to display tools to find
	// the beginning of the instruction if necessary.
	Address uint64
	// The id of the corresponding profile.Mapping for this location.
	// It can be unset if the mapping is unknown or not applicable for
	// this profile type.
	MappingId uint32
	// Provides an indication that multiple symbols map to this location's
	// address, for example due to identical code folding by the linker. In that
	// case the line information above represents one of the multiple
	// symbols. This field must be recomputed when the symbolization state of the
	// profile changes.
	IsFolded bool
	// Multiple line indicates this location has inlined functions,
	// where the last entry represents the caller into which the
	// preceding entries were inlined.
	//
	// E.g., if memcpy() is inlined into printf:
	//
	//	line[0].function_name == "memcpy"
	//	line[1].function_name == "printf"
	Line []InMemoryLine
}

type InMemoryMapping struct {
	// Unique nonzero id for the mapping.
	Id uint64
	// Address at which the binary (or DLL) is loaded into memory.
	MemoryStart uint64
	// The limit of the address range occupied by this mapping.
	MemoryLimit uint64
	// Offset in the binary that corresponds to the first mapped address.
	FileOffset uint64
	// The object this entry is loaded from.  This can be a filename on
	// disk for the main binary and shared libraries, or virtual
	// abstractions like "[vdso]".
	Filename uint32
	// A string that uniquely identifies a particular program version
	// with high probability. E.g., for binaries generated by GNU tools,
	// it could be the contents of the .note.gnu.build-id field.
	BuildId uint32
	// The following fields indicate the resolution of symbolic info.
	HasFunctions    bool
	HasFilenames    bool
	HasLineNumbers  bool
	HasInlineFrames bool
}

type InMemoryProfile struct {
	// A unique UUID per ingested profile
	ID uuid.UUID

	// SeriesIndex references the underlying series and is generated when
	// writing the TSDB index. The SeriesIndex is different from block to
	// block.
	SeriesIndex uint32

	// StacktracePartition is the partition ID of the stacktrace table that this profile belongs to.
	StacktracePartition uint64

	// TotalValue is the sum of all values in the profile.
	TotalValue uint64

	// SeriesFingerprint references the underlying series and is purely based
	// on the label values. The value is consistent for the same label set (so
	// also between different blocks).
	SeriesFingerprint model.Fingerprint

	// frames with Function.function_name fully matching the following
	// regexp will be dropped from the samples, along with their successors.
	DropFrames int64
	// frames with Function.function_name fully matching the following
	// regexp will be kept, even if it matches drop_frames.
	KeepFrames int64
	// Time of collection (UTC) represented as nanoseconds past the epoch.
	TimeNanos int64
	// Duration of the profile, if a duration makes sense.
	DurationNanos int64
	// The number of events between sampled occurrences.
	Period int64
	// Freeform text associated to the profile.
	Comments []int64
	// Index into the string table of the type of the preferred sample
	// value. If unset, clients should default to the last sample value.
	DefaultSampleType int64

	Samples Samples

	Annotations Annotations
}

type LocationPersister struct{}

type MappingPersister struct{}

type Models interface {
	*Profile | InMemoryProfile |
		*googlev1.Location | InMemoryLocation |
		*googlev1.Function | InMemoryFunction |
		*googlev1.Mapping | InMemoryMapping |
		*Stacktrace |
		string
}

type Persister[T any] interface {
	PersisterName
	Schema() *parquet.Schema
	Deconstruct(parquet.Row, T) parquet.Row
	Reconstruct(parquet.Row) (T, error)
}

type PersisterName interface {
	Name() string
}

type Profile struct {
	// A unique UUID per ingested profile
	ID uuid.UUID `parquet:",uuid"`

	// SeriesIndex references the underlying series and is generated when
	// writing the TSDB index. The SeriesIndex is different from block to
	// block.
	SeriesIndex uint32 `parquet:",delta"`

	// StacktracePartition is the partition ID of the stacktrace table that this profile belongs to.
	StacktracePartition uint64 `parquet:",delta"`

	// TotalValue is the sum of all values in the profile.
	TotalValue uint64 `parquet:",delta"`

	// SeriesFingerprint references the underlying series and is purely based
	// on the label values. The value is consistent for the same label set (so
	// also between different blocks).
	SeriesFingerprint model.Fingerprint `parquet:"-"`

	// The set of samples recorded in this profile.
	Samples []*Sample `parquet:",list"`

	// frames with Function.function_name fully matching the following
	// regexp will be dropped from the samples, along with their successors.
	DropFrames int64 `parquet:",optional"` // Index into string table.
	// frames with Function.function_name fully matching the following
	// regexp will be kept, even if it matches drop_frames.
	KeepFrames int64 `parquet:",optional"` // Index into string table.
	// Time of collection (UTC) represented as nanoseconds past the epoch.
	TimeNanos int64 `parquet:",delta,timestamp(nanosecond)"`
	// Duration of the profile, if a duration makes sense.
	DurationNanos int64 `parquet:",delta,optional"`
	// The number of events between sampled occurrences.
	Period int64 `parquet:",optional"`
	// Freeform text associated to the profile.
	Comments []int64 `parquet:",list"` // Indices into string table.
	// Index into the string table of the type of the preferred sample
	// value. If unset, clients should default to the last sample value.
	DefaultSampleType int64 `parquet:",optional"`

	// Additional metadata about the profile
	Annotations []*Annotation `parquet:",list"`
}

type ProfilePersister struct{}

type ProfileRow parquet.Row

type Sample struct {
	StacktraceID uint64             `parquet:",delta"`
	Value        int64              `parquet:",delta"`
	Labels       []*profilev1.Label `parquet:",list"`
	SpanID       uint64             `parquet:",optional"`
}

type SampleColumns struct {
	StacktraceID parquet.LeafColumn
	Value        parquet.LeafColumn
	SpanID       parquet.LeafColumn
}

type Samples struct {
	StacktraceIDs []uint32
	Values        []uint64
	// Span associated with samples.
	// Optional: Spans == nil, if not present.
	Spans []uint64
}

type SamplesBySpanID Samples

type SliceRowReader[T any] struct {
	// contains filtered or unexported fields
}

type Stacktrace struct {
	LocationIDs []uint64 `parquet:",list"`
}

type StacktracePersister struct{}

type StringPersister struct{}