%%-----------------------------------------------------------------------------
%% Copyright (c) 2014, Feng Lee <feng@slimchat.io>
%% 
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%% 
%% The above copyright notice and this permission notice shall be included in all
%% copies or substantial portions of the Software.
%% 
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
%% SOFTWARE.
%%------------------------------------------------------------------------------

%%------------------------------------------------------------------------------
%% Core PubSub Topic
%%------------------------------------------------------------------------------
-record(topic, {
	name	:: binary(),
	node	:: node()
}).

-type topic() :: #topic{}.

-record(topic_subscriber, {
	topic	:: binary(),
	qos = 0	:: integer(),
	subpid	:: pid()
}).

-record(topic_trie_node, {
	node_id			:: binary(),
	edge_count = 0	:: non_neg_integer(),
	topic			:: binary()
}).

-record(topic_trie_edge, {
	node_id	:: binary(),
	word	:: binary()
}).

-record(topic_trie, {
	edge	:: #topic_trie_edge{},
	node_id	:: binary()
}).