;;; Nani Project website

;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>

;;;

;;; This file is part of the Nani Project website.

;;;

;;; The Nani Project website is free software; you can redistribute it and/or modify it

;;; under the terms of the GNU Affero General Public License as published by

;;; the Free Software Foundation; either version 3 of the License, or (at

;;; your option) any later version.

;;;

;;; The Nani Project website 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 Affero General Public License for more details.

;;;

;;; You should have received a copy of the GNU Affero General Public License

;;; along with the Nani Project website.  If not, see <http://www.gnu.org/licenses/>.

(use-modules (nani kanji kanjivg))

(use-modules (ice-9 match))

(use-modules (ice-9 binary-ports))

(define (get-files directory)

  (let loop ((dir (opendir (string-append directory "/kanji/"))) (svgs '()))

    (let ((entry (readdir dir)))

      (cond

        ((eof-object? entry) svgs)

        ((string-contains entry "-") (loop dir svgs))

        ((string-prefix? "000" entry) (loop dir svgs))

        ((string-suffix? ".svg" entry)

         (loop dir (cons (string-append directory "/kanji/" entry) svgs)))

        (else (loop dir svgs))))))

(match (command-line)

  ((_ cmd kanjivg-dir output)

   (cond

    ((equal? cmd "build")

     (let* ((results

              (map

                (lambda (file)

                  (call-with-input-file file

                    (lambda (port)

                      (let ((r (xml->kanji port)))

                        (unless (kanji-kanji r)

                          (pk 'no-kanji file))

                        r))))

                (sort (get-files kanjivg-dir) string<?))))

       (call-with-output-file output

         (lambda (port)

           (put-bytevector port

             (serialize-kanjivg (filter

                                  (lambda (r) (kanji-kanji r))

                                  results)))))))

    (else (format #t "Unknown cmd ~a.~%" cmd)))))