validators

type GetValidatorOutput struct {
	NodeID    ids.NodeID
	PublicKey *bls.PublicKey
	Weight    uint64
}

type Set interface {
	// Add adds a validator
	Add(nodeID ids.NodeID, pk *bls.PublicKey, txID ids.ID, weight uint64) error

	// AddWeight adds weight to a validator
	AddWeight(nodeID ids.NodeID, weight uint64) error

	// Get returns a validator's weight
	Get(nodeID ids.NodeID) (uint64, bool)

	// GetWeight returns a validator's weight
	GetWeight(nodeID ids.NodeID) uint64

	// SubsetWeight returns the total weight of a subset
	SubsetWeight(subset []ids.NodeID) uint64

	// Remove removes a validator
	Remove(nodeID ids.NodeID) error

	// RemoveWeight removes weight from a validator
	RemoveWeight(nodeID ids.NodeID, weight uint64) error

	// Contains returns true if the validator is in the set
	Contains(nodeID ids.NodeID) bool

	// Len returns the number of validators
	Len() int

	// List returns all validator IDs
	List() []ids.NodeID

	// Weight returns the total weight
	Weight() uint64

	// Sample returns a sample of validators
	Sample(size int) ([]ids.NodeID, error)

	// String returns a string representation
	String() string
}

type State interface {
	// GetValidatorSet returns the validator set for a subnet at a given height
	GetValidatorSet(
		ctx interface{},
		height uint64,
		subnetID ids.ID,
	) (map[ids.NodeID]*GetValidatorOutput, error)

	// GetValidator returns a validator's info
	GetValidator(
		ctx interface{},
		subnetID ids.ID,
		nodeID ids.NodeID,
	) (*GetValidatorOutput, error)
}