(* BSD-2-Clause License *)

type _ t =
  | Basic : Jv.t -> [> `Basic ] t
  | Geojson : Jv.t -> [> `Geojson ] t
  | Marker : Jv.t -> [> `Marker ] t
  | Tile : Jv.t -> [> `Tile ] t
  | Vector : Jv.t -> [> `Vector ] t

type _ sub =
  | Basic : [> `Basic ] sub
  | Geojson : [> `Geojson ] sub
  | Marker : [> `Marker ] sub
  | Tile : [> `Tile ] sub
  | Vector : [> `Vector ] sub

(** Basic layers *)

(** [add_to map layer] adds [layer] to [map] *)
val add_to : Map.t -> _ t -> unit

(** [remove layer] removes [layer] from the map it is currently active on *)
val remove : _ t -> unit

(** [remove_from map layer] removes [layer] from [map] *)
val remove_from : Map.t -> _ t -> unit

(** [bind_popup popup layer] binds [popup] to [layer] *)
val bind_popup : Popup.t -> _ t -> unit

(** [unbind_popup layer] unbinds the popup bound to [layer] *)
val unbind_popup : _ t -> unit

(** [open_popup layer] opens the popup bound to [layer] *)
val open_popup : _ t -> unit

(** [close_popup layer] closes the popup bound to [layer] *)
val close_popup : _ t -> unit

(** [get_popup layer] is the popup bound to [layer] *)
val get_popup : _ t -> Popup.t

(** [to_jv o] is [o] as a {!Jv.t} *)
val to_jv : _ t -> Jv.t

(** [of_jv tag o] is [o] as a [tag t] *)
val of_jv : 'a sub -> Jv.t -> 'a t

(** [on event handler layer] add an event listener on [layer] for event [event]
    with handler [handler] *)
val on : 'a Event.sub -> ('a Event.t -> 'b) -> 'c t -> unit

(** Geojson layers *)

(** type for geojson option, used to create geojson *)
type geojson_opt =
  | Point_to_layer of (Jv.t -> Latlng.t -> [ `Marker ] t)
  | Style of (Jv.t -> unit)
  | On_each_feature of (Jv.t -> [ `Geojson ] t -> unit)
  | Filter of (Jv.t -> bool)
  | Coords_to_latlng of (Jv.t -> Latlng.t)
  | Markers_inherit_options of bool

(** [create_geojson geojson] is a new geojson layer *)
val create_geojson : Jv.t -> geojson_opt list -> [ `Geojson ] t

(** Tile layers *)

type tile_layer_opt =
  | Min_zoom of int
  | Max_zoom of int
  | Subdomains of string array
  | Error_tile_url of string
  | Zoom_offset of int
  | Tms of bool
  | Zoom_reverse of bool
  | Detect_retina of bool
  | Cross_origin of bool
  | Referrer_policy of bool
  | Tile_size of Point.t
  | Opacity of float
  | Update_when_idle of bool
  | Update_when_zooming of bool
  | Update_interval of int
  | Z_index of int
  | Bounds of (* LatLngBounds *) Latlng.t * Latlng.t
  | Max_native_zoom of int
  | Min_native_zoom of int
  | No_wrap of bool
  | Pane of string
  | Class_name of string
  | Keep_buffer of int

(** [create_tile url attribution opts] create a new tile layer *)
val create_tile :
  string -> attribution:string -> tile_layer_opt list -> [ `Tile ] t

(** [create_tile_osm opts] create a new tile layer with tile server and
    attribution set to [openstreetmap.org]. See
    {:https://wiki.openstreetmap.org/wiki/Tile_servers} *)
val create_tile_osm : tile_layer_opt list -> [ `Tile ] t

(** [create_polyline l] create a polyline layer from [l] *)
val create_polyline : Latlng.t list -> [ `Vector ] t