(* Js_of_ocaml library
 * http://www.ocsigen.org/js_of_ocaml/
 * Copyright (C) 2014 Hugo Heuzard
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, with linking exception;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *)

(* https://developer.mozilla.org/en-US/docs/Web/API/EventSource *)
open Js
open Dom
open! Import

type state =
  | CONNECTING
  | OPEN
  | CLOSED

class type ['a] messageEvent = object
  inherit ['a] Dom.event

  method data : js_string t readonly_prop

  method origin : js_string t readonly_prop

  method lastEventId : js_string t readonly_prop
end

class type eventSource = object ('self)
  method url : js_string t readonly_prop

  method withCredentials : bool t readonly_prop

  method readyState : state readonly_prop

  method close : unit meth

  method onopen : ('self t, 'self Dom.event t) event_listener writeonly_prop

  method onmessage : ('self t, 'self messageEvent t) event_listener writeonly_prop

  method onerror : ('self t, 'self Dom.event t) event_listener writeonly_prop
end

class type options = object
  method withCredentials : bool t writeonly_prop
end

let withCredentials b : options t =
  let init = Js.Unsafe.obj [||] in
  init##.withCredentials := Js.bool b;
  init

let eventSource = Js.Unsafe.global##._EventSource

let eventSource_options = Js.Unsafe.global##._EventSource

let addEventListener = Dom.addEventListener
