%%%-------------------------------------------------------------------
%% @doc efka top level supervisor.
%% @end
%%%-------------------------------------------------------------------

-module(efka_sup).

-behaviour(supervisor).

-export([start_link/0]).

-export([init/1]).

-define(SERVER, ?MODULE).

-spec start_link() -> {ok, pid()} | ignore | {error, term()}.
start_link() ->
    supervisor:start_link({local, ?SERVER}, ?MODULE, []).

%% sup_flags() = #{strategy => strategy(),         % optional
%%                 intensity => non_neg_integer(), % optional
%%                 period => pos_integer()}        % optional
%% child_spec() = #{id => child_id(),       % mandatory
%%                  start => mfargs(),      % mandatory
%%                  restart => restart(),   % optional
%%                  shutdown => shutdown(), % optional
%%                  type => worker(),       % optional
%%                  modules => modules()}   % optional
-spec init(list()) -> {ok, {supervisor:sup_flags(), [supervisor:child_spec()]}}.
init([]) ->
    SupFlags = #{strategy => one_for_one, intensity => 1000, period => 3600},
    ChildSpecs = [
        #{
            id => 'efka_logger',
            start => {'efka_logger', start_link, ["deploy_log"]},
            restart => permanent,
            shutdown => 2000,
            type => worker,
            modules => ['efka_logger']
        },

        #{
            id => 'efka_service_sup',
            start => {'efka_service_sup', start_link, []},
            restart => permanent,
            shutdown => 2000,
            type => supervisor,
            modules => ['efka_service_sup']
        },

        #{
            id => efka_service_model,
            start => {efka_service_model, start_link, []},
            restart => permanent,
            shutdown => 5000,
            type => worker,
            modules => ['efka_service_model']
        },

        #{
            id => 'efka_subscription',
            start => {'efka_subscription', start_link, []},
            restart => permanent,
            shutdown => 2000,
            type => worker,
            modules => ['efka_subscription']
        },

        #{
            id => 'efka_iot_client',
            start => {'efka_iot_client', start_link, []},
            restart => permanent,
            shutdown => 2000,
            type => worker,
            modules => ['efka_iot_client']
        },

        #{
            id => 'efka_iot_heartbeat',
            start => {'efka_iot_heartbeat', start_link, []},
            restart => permanent,
            shutdown => 2000,
            type => worker,
            modules => ['efka_iot_heartbeat']
        }

    ],

    {ok, {SupFlags, ChildSpecs}}.

%% internal functions