snow

type Context struct {
	NetworkID uint32
	SubnetID  ids.ID
	ChainID   ids.ID
	NodeID    ids.ShortID

	XChainID    ids.ID
	DJTXAssetID ids.ID

	Log                 logging.Logger
	DecisionDispatcher  EventDispatcher
	ConsensusDispatcher EventDispatcher
	Lock                sync.RWMutex
	Keystore            keystore.BlockchainKeystore
	SharedMemory        atomic.SharedMemory
	BCLookup            ids.AliaserReader
	SNLookup            SubnetLookup
	Namespace           string
	Metrics             prometheus.Registerer

	// Epoch management
	EpochFirstTransition time.Time
	EpochDuration        time.Duration
	Clock                mockable.Clock

	// snowman++ attributes
	ValidatorState    validators.State  // interface for P-Chain validators
	StakingLeafSigner crypto.Signer     // block signer
	StakingCertLeaf   *x509.Certificate // block certificate
	// contains filtered or unexported fields
}

type ContextInitializable interface {
	// InitCtx initializes an object provided a *Context object
	InitCtx(ctx *Context)
}

type EventDispatcher interface {
	Issue(ctx *Context, containerID ids.ID, container []byte) error
	// If the returned error is non-nil, the chain associated with [ctx] should shut
	// down and not commit [container] or any other container to its database as accepted.
	// Accept must be called before [containerID] is committed to the VM as accepted.
	Accept(ctx *Context, containerID ids.ID, container []byte) error
	Reject(ctx *Context, containerID ids.ID, container []byte) error
}

type SubnetLookup interface {
	SubnetID(chainID ids.ID) (ids.ID, error)
}