(*
 *    Copyright (C) 2020 -- 2022  Alban Gruin
 *
 *    ucs is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU Affero General Public License as published
 *    by the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    ucs 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 Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with ucs.  If not, see <http://www.gnu.org/licenses/>.
 *)

module Event : sig
  type t

  val make : CalendarLib.Calendar.t -> CalendarLib.Calendar.t ->
             string -> string option -> string list -> t

  val to_string : string -> t -> int -> string
end

type t = Event.t list

val filter_empty_locations : t -> t
val filter_groups : string list -> t -> t
val get_all_groups : t -> string Seq.t
val to_string : string -> t -> string