;;
;; members-base.scm
;;
;; Storage for member files.
;;
;; 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 members-base))

(module
 members-base
 (
  load-members
  members-base-tests!
  )

 (import scheme
	 (chicken base)
	 (chicken pathname)
	 (chicken file posix)
	 (chicken file)
	 testing
	 dictionary)

 ;; Gets all files and symbolic links from given directory. The
 ;; symbolic links are represented by cons cells with car being the
 ;; name and cdr the link target.
 (define (get-files+symlinks dn)
   (let loop ((fns (directory dn))
	      (rs '()))
     (if (null? fns)
	 rs
	 (let* ((fn (car fns))
		(ffn (make-pathname dn fn)))
	   (loop (cdr fns)
		 (if (symbolic-link? ffn)
		     (cons (cons fn (read-symbolic-link ffn)) rs)
		     (if (regular-file? ffn)
			 (cons fn rs)
			 rs)))))))

 (define (files+symlinks->files-dictionary ls)
   (let ((links (filter pair? ls))
	 (files (filter string? ls)))
     (print links)
     (print files)))

 (define (load-members dn)
   ;; get the directory contents
   (files+symlinks->files-dictionary (get-files+symlinks dn))
   ;; filter all ids
   ;; resolve links (it might be unknown!)
   ;; load member files
   1)

 (define (members-base-tests!)
   (run-tests
    members-base
    ))

 )