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;;;  gnc-module.scm
;;;  Guile module which allows initialization of the gnucash module
;;;  system from Scheme 
;;;
;;;  Copyright 2001 Linux Developers Group
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;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2 of
;; the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, contact:
;;
;; Free Software Foundation           Voice:  +1-617-542-5942
;; 51 Franklin Street, Fifth Floor    Fax:    +1-617-542-2652
;; Boston, MA  02110-1301,  USA       gnu@gnu.org
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


(define-module (gnucash gnc-module))

(use-modules (ice-9 match))

(define (deprecate . lst)
  ;; 4.x deprecation. remove in 5.x
  (issue-deprecation-warning (string-concatenate lst)))

(define (no-op-deprecation-warning)
  (deprecate "* WARNING * Guile wrappers for the gnc module system have been \
deprecated. This particular function call is now a no-op. Please use \
equivalent (use-modules ...) calls instead."))

(define-public gnc:module-system-init no-op-deprecation-warning)
(define-public gnc:module-system-refresh no-op-deprecation-warning)
(define-public gnc:module-load-optional no-op-deprecation-warning)
(define-public gnc:module-unload no-op-deprecation-warning)

(define-public (gnc:module-load gnc-mod-name mod-sys-version)
  (let* ((mod-name-split (string-split gnc-mod-name #\/))
         (mod-name-str (string-join mod-name-split " "))
         (scm-mod-name (map string->symbol mod-name-split)))

    (match gnc-mod-name
      ("gnucash/app-utils"
       (deprecate "* WARNING * 'gnc:module-load (\"gnucash/app-utils\" 0)' has \
been deprecated and will be removed in gnucash 5.0. Use '(use-modules (gnucash \
engine) (gnucash app-utils))' instead. Use of the '(gnucash engine)' guile \
module is optional and depends on whether or not you use functions from \
this module in your code or not.")
       (use-modules (gnucash engine) (gnucash app-utils)))

      ((or "gnucash/tax/de_DE" "gnucash/tax/us")
       (set! scm-mod-name `(gnucash locale ,(list-ref scm-mod-name 2) tax))
       (set! mod-name-str (string-join (map symbol->string scm-mod-name) " "))
       (deprecate "* WARNING * '(gnc:module-load \"" gnc-mod-name "\" 0)' has \
been deprecated. Use '(use-modules (" mod-name-str "))' instead.")
       (module-use! (current-module) (resolve-interface scm-mod-name)))

      ((or "gnucash/gnome-utils" "gnucash/html" "gnucash/report/report-system")
       (when (string=? gnc-mod-name "gnucash/report/report-system")
         (set! mod-name-str "gnucash report"))
       (set! scm-mod-name '(gnucash report))
       (deprecate "* WARNING * '(gnc:module-load \"" gnc-mod-name "\" 0)' has \
been deprecated. Use '(use-modules (gnucash engine) (gnucash app-utils) \
(" mod-name-str "))' instead. Use of the '(gnucash engine)' or \
'(gnucash app-utils)' guile modules is optional and depends on whether \
or not you use functions from this module in your code or not.")
       (use-modules (gnucash engine) (gnucash app-utils))
       (module-use! (current-module) (resolve-interface scm-mod-name)))

      (_ (deprecate "* WARNING * '(gnc:module-load \"" gnc-mod-name "\" 0)' \
has been deprecated. Use '(use-modules (" mod-name-str "))' instead. \
Additional guile modules may have to be loaded depending on your specific code.")
       (module-use! (current-module) (resolve-interface scm-mod-name))))))
