router

type Handler interface {
	// HandleInbound handles inbound messages
	HandleInbound(ctx context.Context, msg HandlerMessage) error

	// HandleOutbound handles outbound messages
	HandleOutbound(ctx context.Context, msg HandlerMessage) error

	// Connected handles node connection events
	Connected(ctx context.Context, nodeID ids.NodeID) error

	// Disconnected handles node disconnection events
	Disconnected(ctx context.Context, nodeID ids.NodeID) error
}

type HandlerMessage struct {
	NodeID    ids.NodeID
	RequestID uint32
	Op        Op
	Message   []byte
}

type InboundHandler interface {
	HandleInbound(ctx context.Context, msg message.InboundMessage)
}

type InboundHandlerFunc func(ctx context.Context, msg message.InboundMessage)

type Message struct {
	NodeIDs   []ids.NodeID
	RequestID uint32
	Op        Op
	Bytes     []byte
}

type Op byte

type Router interface {
	// HandleInbound handles an inbound message
	HandleInbound(ctx context.Context, msg message.InboundMessage)

	// RegisterHandler registers a handler for a specific chain
	RegisterHandler(chainID ids.ID, handler Handler)

	// UnregisterHandler removes a handler for a specific chain
	UnregisterHandler(chainID ids.ID)

	// Deprecated is required for backward compatibility
	Deprecated()
}

type Sender interface {
	// Send sends a message to the specified nodes
	Send(ctx context.Context, msg Message) error

	// SendAppRequest sends an app request to the specified nodes
	SendAppRequest(ctx context.Context, nodeIDs []ids.NodeID, requestID uint32, payload []byte) error

	// SendAppResponse sends an app response to a specific node
	SendAppResponse(ctx context.Context, nodeID ids.NodeID, requestID uint32, payload []byte) error

	// SendAppGossip sends app gossip to the specified nodes
	SendAppGossip(ctx context.Context, nodeIDs []ids.NodeID, payload []byte) error
}