-module(eventhub_app).
-behaviour(application).

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

start(_StartType, _StartArgs) ->
  application:ensure_all_started(mnesia),
  application:ensure_all_started(cowboy),

  case infra_sup:start_link() of
    {ok, Pid} ->
      ok = infra_mnesia:init_tables(),
      ok = infra_mnesia:wait_for_tables(),
      start_http(),
      {ok, Pid};
    Error ->
      Error
  end.

stop(_State) ->
  ok.

start_http() ->
  Port = application:get_env(eventhub, http_port, 8080),

  Dispatch = cowboy_router:compile([
    {'_', [
      {"/health", handler_health, []},
      {"/v1/register", handler_register, []},
      {"/v1/login", handler_login, []},
      {"/v1/refresh", handler_refresh, []},
      {"/v1/user/me", handler_user_me, []},
      {"/v1/user/bookings", handler_user_bookings, []},
      {"/v1/search", handler_search, []},
      {"/v1/calendars", handler_calendars, []},
      {"/v1/calendars/:id", handler_calendar_by_id, []},
      {"/v1/calendars/:calendar_id/events", handler_events, []},
      {"/v1/events/:id", handler_event_by_id, []},
      {"/v1/events/:id/occurrences", handler_event_occurrences, []},
      {"/v1/events/:id/occurrences/:start_time", handler_event_occurrences, []},
      {"/v1/events/:id/bookings", handler_bookings, []},
      {"/v1/bookings/:id", handler_booking_by_id, []}
    ]}
  ]),

  Middlewares = [
    cowboy_router,
    cowboy_handler
  ],

  Env = #{dispatch => Dispatch},

  cowboy:start_clear(http, [{port, Port}], #{
    env => Env,
    middlewares => Middlewares
  }),

  io:format("HTTP server started on port ~p~n", [Port]).