%% This module returns a different value in websocket_init/1 depending on the query string.
-module(ws_init_h).
-behavior(cowboy_websocket).
-export([init/2]).
-export([websocket_init/1]).
-export([websocket_handle/2]).
-export([websocket_info/2]).
init(Req, _) ->
State = binary_to_atom(cowboy_req:qs(Req), latin1),
{cowboy_websocket, Req, State}.
%% Sleep to make sure the HTTP response was sent.
websocket_init(State) ->
timer:sleep(100),
do_websocket_init(State).
do_websocket_init(State=ok) ->
{[], State};
do_websocket_init(State=ok_hibernate) ->
{[], State, hibernate};
do_websocket_init(State=reply) ->
{[{text, "Hello"}], State};
do_websocket_init(State=reply_hibernate) ->
{[{text, "Hello"}], State, hibernate};
do_websocket_init(State=reply_close) ->
{[close], State};
do_websocket_init(State=reply_close_hibernate) ->
{[close], State, hibernate};
do_websocket_init(State=reply_many) ->
{[{text, "Hello"}, {binary, "World"}], State};
do_websocket_init(State=reply_many_hibernate) ->
{[{text, "Hello"}, {binary, "World"}], State, hibernate};
do_websocket_init(State=reply_many_close) ->
{[{text, "Hello"}, close], State};
do_websocket_init(State=reply_many_close_hibernate) ->
{[{text, "Hello"}, close], State, hibernate};
do_websocket_init(State=reply_trap_exit) ->
Text = "trap_exit: " ++ atom_to_list(element(2, process_info(self(), trap_exit))),
{[{text, Text}, close], State, hibernate}.
websocket_handle(_, State) ->
{[], State}.
websocket_info(_, State) ->
{[], State}.
