%% @doc Supervisor for the mb application.

-module(mbcs_sup).
-author('luxiangyu@msn.com').

-behaviour(application).
-behaviour(supervisor).

%% External exports
-export([start/0, start/2, init/1, stop/1, upgrade/0]).


%% @spec start() -> ServerRet
%% @doc API for starting the supervisor.
start(normal, Args) ->
    SupName = {local,?MODULE},
    case supervisor:start_link(SupName, ?MODULE, [Args]) of
	{ok, Pid} ->
	    {ok, Pid, {normal, Args}};
	Error -> 
	    Error
    end;
start(_, _) ->
    {error, badarg}.

start() ->
    SupName = {local,?MODULE},
    supervisor:start_link(SupName, ?MODULE, []).

stop(_StartArgs) ->
    ok.

%% @spec upgrade() -> ok
%% @doc Add processes if necessary.
upgrade() ->
    {ok, {_, Specs}} = init([]),
    [supervisor:start_child(?MODULE, Spec) || Spec <- Specs],
    ok.

%% @spec init(_) -> SupervisorTree
%% @doc supervisor callback, ensures yaws is in embedded mode and then
%%      returns the supervisor tree.
init([]) -> % Supervisor
    init();
init([[]]) -> % Application
    init();
init(BadArg) ->
    {error, {badarg, BadArg}}.
init() ->
    Processes = [{mbcs_server, {mbcs_server, start, []},
                 permanent, brutal_kill, worker, [mbcs_server]}],
    {ok, {{one_for_one, 1, 60}, Processes}}.