namespace mmo.beacon;

enum Verb:byte {
    Join = 0,
    Leave,
    List
}

union Request {
    JoinRequest,
    LeaveRequest,
    ListRequest
}

table Call {
    request:Request;
}

table JoinRequest {
    uid:string (required);
    contact:string (required);
    clock:long;
}

table LeaveRequest {
    uid:string (required);
}

table ListRequest {}

union Response {
    JoinResponse,
    LeaveResponse,
    ListResponse
}

table CallResp {
    response:Response;
}

table JoinResponse {}

table LeaveResponse {}

table ListResponse {
    entities:[Entity];
}

table Entity {
    uid:string (required);
    // vector clock representing the state of this thing
    clock:long;
}