type AcquireError interface {
	error

	Amount() uint64
	Unwrap() error
}

type Client interface {
	closer.Closer

	CreateResource(
		ctx context.Context,
		coordinationNodePath string,
		resource Resource,
	) (err error)
	AlterResource(
		ctx context.Context,
		coordinationNodePath string,
		resource Resource,
	) (err error)
	DropResource(
		ctx context.Context,
		coordinationNodePath string,
		resourcePath string,
	) (err error)
	ListResource(
		ctx context.Context,
		coordinationNodePath string,
		resourcePath string,
		recursive bool,
	) (_ []string, err error)
	DescribeResource(
		ctx context.Context,
		coordinationNodePath string,
		resourcePath string,
	) (_ *Resource, err error)
	AcquireResource(
		ctx context.Context,
		coordinationNodePath string,
		resourcePath string,
		amount uint64,
		opts ...options.AcquireOption,
	) (err error)
}

type HierarchicalDrrSettings struct {
	MaxUnitsPerSecond       float64
	MaxBurstSizeCoefficient float64
	PrefetchCoefficient     float64
	PrefetchWatermark       float64
}

type Resource struct {
	ResourcePath    string
	HierarchicalDrr HierarchicalDrrSettings
}