syntax = "proto2";

enum Type {
    BOOTSTRAP_REQUEST = 1;
    BOOTSTRAP_RESPONSE = 2;
    CONNECTED = 3;
    DISCONNECTED = 4;
    ADD_ITEM = 5;
    REMOVE_ITEM = 6;
    HEARTBEAT = 7;
}

message Message {
    required Type type = 1;
    map<string, State> bootstrap = 2; // For bootstrap events
    optional bytes data = 3; // For state event
    optional bytes signature = 4;
    optional bytes id = 5; // For connected and disconnected events
}

message State {
    repeated bytes connectedTo = 1;
}