;;
;; mailman2.scm
;;
;; Mailman management interface - Mailman version 2.x support
;;
;; ISC License
;;
;; Copyright 2023 Brmlab, z.s.
;; Dominik Pantůček <dominik.pantucek@trustica.cz>
;;
;; Permission to use, copy, modify, and/or distribute this software
;; for any purpose with or without fee is hereby granted, provided
;; that the above copyright notice and this permission notice appear
;; in all copies.
;; 
;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;;

(declare (unit mailman2))

(module
 mailman2
 (
  list-mailman2-lists
  list-mailman2-list-members
  
  add-email-to-mailman2-list
  remove-email-from-mailman2-list
  )

 (import scheme
	 (chicken base)
	 (chicken pathname)
	 (chicken string)
	 (chicken sort)
	 (chicken format)
	 srfi-1
	 util-bst-lset
	 util-io
	 mailman-common
	 configuration)

 ;; Returns full path to given mailman binary
 (define (mailman-bin bin)
   (make-pathname (*mailman2-bin*) bin))

 ;; Mailman-specific process output lines capture
 (define (get-mailman-output-lines bin . args)
   (apply
    get-process-output-lines
    (mailman-bin bin)
    args))

 ;; Sends all lines to the process
 (define (mailman-send/recv bin args . lines)
   (apply
    process-send/recv
    (mailman-bin bin)
    args
    lines))
    
 ;; Returns the list of available lists
 (define (list-mailman2-lists)
   (get-mailman-output-lines "list_lists" "-b"))

 ;; Returns the list of members of given list
 (define (list-mailman2-list-members lst)
   (sort
    (get-mailman-output-lines "list_members" lst)
    string-ci<?))

 ;; Adds given email to given listname
 (define (add-email-to-mailman2-list listname email)
   (print "Add " email " to " listname ".")
   (let ((result
	  (mailman-send/recv
	   "add_members"
	   (list "-r" "-" listname)
	   email)))
     (let loop ((lines result))
       (when (not (null? lines))
	 (print " | " (car lines))
	 (loop (cdr lines))))))

 ;; Removes given email from given listname
 (define (remove-email-from-mailman2-list listname email)
   (print "Remove " email " from " listname ".")
   (let ((result
	  (get-mailman-output-lines
	   "remove_members" listname
	   (sprintf "~A" email))))
     (let loop ((lines result))
       (when (not (null? lines))
	 (print " | " (car lines))
	 (loop (cdr lines))))))

 )