-module(erserver_app).
-behaviour(application).

-export([start/2]).
-export([stop/1]).

start(_Type, _Args) ->
	PortStr = os:getenv("PORT", "31337"),
	{Port, _} = string:to_integer(PortStr),
	DebugModeEnv = os:getenv("DEBUG_MODE", "false"),

	ClientManager = spawn(websocket_handler, client_manager, []),
	Dispatch = cowboy_router:compile([
		{ '_'
		, [ {"/", websocket_handler, {ClientManager}}
		  , {"/", cowboy_static, {priv_file, erlang_server, "client/host.html"}}
		  , {"/host.js", cowboy_static, {priv_file, erlang_server, "client/host.js"}}
		  , {"/types.js", cowboy_static, {priv_file, erlang_server, "client/types.js"}}
		  , {"/watcher.js", cowboy_static, {priv_file, erlang_server, "client/watcher.js"}}
		  , {"/watch", cowboy_static, {priv_file, erlang_server, "client/watcher.html"}}
		  ]
		}
	]),
	if
		DebugModeEnv =:= "true" ->
			Opts =
				[ {certfile, "../cert.pem"}
				, {keyfile, "../key.pem"}
				, {port, Port}
				, inet
				, inet6
				],
			{ok, _} = cowboy:start_tls(
				pokesz_erserver,
				Opts,
				#{env => #{dispatch => Dispatch}}
			);
		true ->
			Opts =
				[ {port, Port}
				, inet6
				, {ip, {0,0,0,0,0,0,0,1}} %% ::1
				],
			{ok, _} = cowboy:start_clear(
				pokesz_erserver,
				Opts,
				#{env => #{dispatch => Dispatch}}
			)
	end,
	erserver_sup:start_link().

stop(_State) ->
	ok.