validators

type Manager interface {
	validators.State

	// OnAcceptedBlockID registers the ID of the latest accepted block.
	// It is used to update the [recentlyAccepted] sliding window.
	OnAcceptedBlockID(blkID ids.ID)
}

type State interface {
	GetTx(txID ids.ID) (*txs.Tx, status.Status, error)

	GetLastAccepted() ids.ID
	GetStatelessBlock(blockID ids.ID) (block.Block, error)

	// ApplyValidatorWeightDiffs iterates from [startHeight] towards the genesis
	// block until it has applied all of the diffs up to and including
	// [endHeight]. Applying the diffs modifies [validators].
	//
	// Invariant: If attempting to generate the validator set for
	// [endHeight - 1], [validators] must initially contain the validator
	// weights for [startHeight].
	//
	// Note: Because this function iterates towards the genesis, [startHeight]
	// should normally be greater than or equal to [endHeight].
	ApplyValidatorWeightDiffs(
		ctx context.Context,
		validators map[ids.NodeID]*validators.GetValidatorOutput,
		startHeight uint64,
		endHeight uint64,
		netID ids.ID,
	) error

	// ApplyValidatorPublicKeyDiffs iterates from [startHeight] towards the
	// genesis block until it has applied all of the diffs up to and including
	// [endHeight]. Applying the diffs modifies [validators].
	//
	// Invariant: If attempting to generate the validator set for
	// [endHeight - 1], [validators] must initially contain the validator
	// weights for [startHeight].
	//
	// Note: Because this function iterates towards the genesis, [startHeight]
	// should normally be greater than or equal to [endHeight].
	ApplyValidatorPublicKeyDiffs(
		ctx context.Context,
		validators map[ids.NodeID]*validators.GetValidatorOutput,
		startHeight uint64,
		endHeight uint64,
	) error
}