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open StdLabels
open Brr
open Brr_note
open Note

(** Return the sidebar *)
let get
  : unit -> El.t option
  = fun () ->

    List.find_opt (El.children @@ Document.body G.document)
      ~f:(fun t -> El.has_tag_name El.Name.aside t)

let rec clean
  : El.t -> unit
  = fun el ->
    List.iter (El.children el)
      ~f:(fun el ->
          (* Remove the links from the sidebar, keep h1 and other stuff *)
          if (El.has_tag_name (Jstr.v "nav") el)
          || (El.has_tag_name (Jstr.v "ul") el) then
            El.remove el
          else
            clean el
        )

let click_event el =
  Evr.on_el
    Ev.click
    Evr.unit
    el

let show_value = function
  | None -> El.txt' ""
  | Some input ->
    El.txt (Jstr.of_int input)

let add_button
  : El.t -> unit E.t * unit E.t
  = fun element ->

    let open El in

    let delete =
      button
        [ El.i
            ~at:At.[ class' (Jstr.v "fas")
                   ; class' (Jstr.v "fa-times-circle") ]
            []
        ; txt' "Delete "] in

    let delete_event = click_event delete in

    let export =
      button
        [ El.i
            ~at:At.[ class' (Jstr.v "fas")
                   ; class' (Jstr.v "fa-download") ]
            []
        ; txt' "Download"] in
    let export_event = click_event export in


    let nib_size, value  =
      Elements.Input.slider
        ~at:At.[ type' (Jstr.v "range")
               ; v (Jstr.v "min") (Jstr.v "0")
               ; v (Jstr.v "max") (Jstr.v "50")
               ; id (Jstr.v "nib_size")
               ] in

    let width = El.div [] in
    Elr.def_children
      width
      (value
       |> S.map (fun v ->
           [ txt' "Width : "
           ; show_value v ]
         )
      );

    let input_angle, angle_event =
      Elements.Input.slider
        ~at:At.[ type' (Jstr.v "range")
               ; v (Jstr.v "min") (Jstr.v "0")
               ; v (Jstr.v "max") (Jstr.v "90")] in
    let angle = El.div [] in
    Elr.def_children
      angle
      (angle_event
       |> S.map (fun v ->
           [ txt' "Angle : "
           ; show_value v
           ; txt' "°" ]
         )
      );

    let click = Evr.on_el Ev.click Evr.unit delete in
    let _ = click in

    let () =
      El.append_children element
        [ hr ()
        ; delete
        ; export
        ; hr ()

        ; width
        ; nib_size
        ; El.br ()

        ; angle
        ; input_angle

        ]
    in
    delete_event, export_event