%%%-------------------------------------------------------------------
%% @doc mtproto_proxy top level supervisor.
%% @end
%% <pre>
%% dc_pool_sup (simple_one_for_one)
%%   dc_pool_1 [conn1, conn3, conn4, ..]
%%   dc_pool_-1 [conn2, ..]
%%   dc_pool_2 [conn5, conn7, ..]
%%   dc_pool_-2 [conn6, conn8, ..]
%%   ...
%% down_conn_sup (simple_one_for_one)
%%   conn1
%%   conn2
%%   conn3
%%   conn4
%%   ...
%%   connN
%% </pre>
%%%-------------------------------------------------------------------

-module(mtproto_proxy_sup).

-behaviour(supervisor).

%% API
-export([start_link/0]).

%% Supervisor callbacks
-export([init/1]).

-define(SERVER, ?MODULE).

%%====================================================================
%% API functions
%%====================================================================

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

%%====================================================================
%% Supervisor callbacks
%%====================================================================

init([]) ->
    SupFlags = #{strategy => one_for_all,       %TODO: maybe change strategy
                 intensity => 50,
                 period => 5},
    Childs = [#{id => mtp_down_conn_sup,
                type => supervisor,
                start => {mtp_down_conn_sup, start_link, []}},
              #{id => mtp_dc_pool_sup,
                type => supervisor,
                start => {mtp_dc_pool_sup, start_link, []}},
              #{id => mtp_config,
                start => {mtp_config, start_link, []}},
              #{id => mtp_session_storage,
                start => {mtp_session_storage, start_link, []}}
             ],
    {ok, {SupFlags, Childs}}.