Agenda notifications for timeless entries, and variable by priority

[Adonay Felipe Nogueira <adfeno@openmailbox.org>]

I'm currently using the following in my .emacs file to have
notifications for Org agenda events:

# Begin of file part
(setq appt-delete-window-function (lambda () t))

(require 'notifications)
(defun adfeno-appt-disp-window-function (min-remaining future-time diary-entry)
  (when (atom min-remaining)
    (notifications-notify
     :title diary-entry
     :body min-remaining
     :category "presence"
     :urgency "normal")
    (if (string-match-p "[[:space:]]\\[#A\\][[:space:]]" diary-entry)
	(start-process "adfeno-appt-notification-important" nil
		       "paplay"
		       "/usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga")
      (start-process "adfeno-appt-notification-normal" nil
		     "timeout" "1"
		     "paplay"
		     "/usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga"))))
(setq appt-disp-window-function 'adfeno-appt-disp-window-function)

(defun adfeno-org-agenda-to-appt ()
  (interactive)
  (setq appt-time-msg-list nil)
    (org-agenda-to-appt))

(run-at-time "00:01" (* 24 (* 60 60)) 'adfeno-org-agenda-to-appt)

;; Ativa as notificações de atividades marcadas.
(require 'appt)
(appt-activate 1)
(adfeno-org-agenda-to-appt)
# End of file part

However, if my agenda entries have no time, but of course have a date,
the notifications, noticeably for #A-priprity entries, don't evidence a
longer sound alarm. And might not even be displaying a pop-up for these
#A-priority events, because I never see such pop-ups when starting Emacs
for the first time in a day.

So my questions are: Do you know a way to have notifications that:

- Vary depending on the priority of the entry.
- Accept timeless entries (no hour, minute, or second).
- Make sound notifications, also varying by priority.

... ?


Respectfully, Adonay.
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