types.go

package snapshot

import (
	"time"

	"github.com/kernel/hypeman/lib/hypervisor"
	"github.com/kernel/hypeman/lib/tags"
)

// SnapshotKind determines how snapshot data is captured and restored.
type SnapshotKind string

const (
	// SnapshotKindStandby captures snapshot-based standby state (memory/device/disk).
	SnapshotKindStandby SnapshotKind = "Standby"
	// SnapshotKindStopped captures stopped-state disk+metadata only.
	SnapshotKindStopped SnapshotKind = "Stopped"
)

// Snapshot is a centrally stored immutable snapshot resource.
type Snapshot struct {
	Id               string       `json:"id"`
	Name             string       `json:"name"`
	Kind             SnapshotKind `json:"kind"`
	Tags             tags.Tags    `json:"tags,omitempty"`
	SourceInstanceID string       `json:"source_instance_id"`
	SourceName       string       `json:"source_instance_name"`
	SourceHypervisor hypervisor.Type
	CreatedAt        time.Time `json:"created_at"`
	SizeBytes        int64     `json:"size_bytes"`
}

// ListSnapshotsFilter contains optional filters for listing snapshots.
type ListSnapshotsFilter struct {
	SourceInstanceID *string
	Kind             *SnapshotKind
	Name             *string
	Tags             tags.Tags
}

// Matches returns true if the given snapshot satisfies all filter criteria.
func (f *ListSnapshotsFilter) Matches(snapshot *Snapshot) bool {
	if f == nil {
		return true
	}
	if f.SourceInstanceID != nil && snapshot.SourceInstanceID != *f.SourceInstanceID {
		return false
	}
	if f.Kind != nil && snapshot.Kind != *f.Kind {
		return false
	}
	if f.Name != nil && snapshot.Name != *f.Name {
		return false
	}
	if !tags.Matches(snapshot.Tags, f.Tags) {
		return false
	}
	return true
}