%% Copyright (c) 2017-2021 Guilherme Andrade <backwater@gandrade.net>
%%
%% 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.

%% @private
-module(backwater_sup).
-behaviour(supervisor).

%% ------------------------------------------------------------------
%% API Function Exports
%% ------------------------------------------------------------------

-export([start_link/0]).

%% ------------------------------------------------------------------
%% supervisor Function Exports
%% ------------------------------------------------------------------

-export([init/1]).

%% ------------------------------------------------------------------
%% Macro Definitions
%% ------------------------------------------------------------------

-define(CB_MODULE, ?MODULE).
-define(SERVER, ?MODULE).

%% ------------------------------------------------------------------
%% Type Definitions
%% ------------------------------------------------------------------

-type children_spec() ::
        [backwater_cache:child_spec(cache),
         ...].
-export_type([children_spec/0]).

%% ------------------------------------------------------------------
%% API Function Definitions
%% ------------------------------------------------------------------

-spec start_link() -> backwater_sup_util:start_link_ret().
start_link() ->
    supervisor:start_link({local, ?SERVER}, ?CB_MODULE, []).

%% ------------------------------------------------------------------
%% supervisor Function Definitions
%% ------------------------------------------------------------------

-spec init([]) -> {ok, {#{}, children_spec()}}.
init([]) ->
    Children = [backwater_cache:child_spec(cache)],
    {ok, {#{}, Children}}.