generic

type Datastore interface {
	IP() Storage[*metal.IP]
	Partition() Storage[*metal.Partition]
	Network() Storage[*metal.Network]
	FilesystemLayout() Storage[*metal.FilesystemLayout]
	Image() Storage[*metal.Image]
}

type Entity interface {
	// GetID returns the entity's id
	GetID() string
	// SetID sets the entity's id
	SetID(id string)
	// GetChanged returns the entity's changed time
	GetChanged() time.Time
	// SetChanged sets the entity's changed time
	SetChanged(changed time.Time)
	// GetCreated sets the entity's creation time
	GetCreated() time.Time
	// SetCreated sets the entity's creation time
	SetCreated(created time.Time)
}

type EntityQuery func(q r.Term) r.Term

type Migration struct {
	Name    string
	Version int
	Up      migrateFunc
}

type Storage[E Entity] interface {
	Create(ctx context.Context, e E) (E, error)
	Update(ctx context.Context, new, old E) error
	Upsert(ctx context.Context, e E) error
	Delete(ctx context.Context, e E) error
	Get(ctx context.Context, id string) (E, error)
	Find(ctx context.Context, queries ...EntityQuery) (E, error)
	List(ctx context.Context, queries ...EntityQuery) ([]E, error)
}