%%%-------------------------------------------------------------------
%%% @doc Factory supervisor for `macula_download' children.
%%%
%%% Meant to be embedded in the caller's own supervision tree: the
%%% application decides when to start a new download and when to
%%% cancel one via `supervisor:terminate_child/2' (or
%%% `macula_download:cancel/1' on the child pid directly). Children
%%% are `temporary' — a finished or crashed download is never
%%% restarted.
%%% @end
%%%-------------------------------------------------------------------
-module(macula_download_sup).

-behaviour(supervisor).

-export([start_link/0]).
-export([init/1]).

-spec start_link() -> {ok, pid()}.
start_link() ->
    supervisor:start_link(?MODULE, []).

%% @private
init([]) ->
    ChildSpec = #{
        id => macula_download,
        start => {macula_download, start_link, []},
        restart => temporary,
        shutdown => 5_000,
        type => worker,
        modules => [macula_download]
    },
    {ok, {#{strategy => simple_one_for_one, intensity => 10, period => 10},
          [ChildSpec]}}.