;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 pukkamustard <pukkamustard@posteo.net>
;;; Copyright © 2025 Evgeny Pisemsky <mail@pisemsky.site>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages diagram)
  #:use-module (guix packages)
  #:use-module (guix build-system gnu)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix gexp)
  #:use-module (guix utils)
  #:use-module ((guix licenses) #:prefix license:))

(define-public pikchr
  (let ((commit "221988914eff6efe")
        (revision "0"))                       ;increment for each new snapshot
    (package
      (name "pikchr")
      ;; To update, use the last check-in in https://pikchr.org/home/timeline?r=trunk
      (version (string-append revision "-" (string-take commit 5)))
      (source (origin
                (method url-fetch)
                (uri (string-append "https://pikchr.org/home/tarball/" commit
                                    "/pikchr.tar.gz"))
                (file-name (string-append "pikchr-" version ".tar.gz"))
                (sha256
                 (base32
                  "0yclkincsgfni4scjzp5avdsij8vmyxjn0q2qkwjhn3p43y8nxzd"))))
      (build-system gnu-build-system)
      (arguments
       '(#:tests? #f                              ;no tests
         #:phases
         (modify-phases %standard-phases
           (delete 'bootstrap)
           (delete 'configure)
           (replace 'install
             (lambda* (#:key outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
                      (bin (string-append out "/bin")))
                 (install-file "pikchr" bin)))))))
      (home-page "https://pikchr.org")
      (synopsis "Markup language for diagrams in technical documentation")
      (description
       "Pikchr (pronounced @emph{picture}) is a PIC-like markup language for
diagrams in technical documentation.  Pikchr is designed to be embedded in
fenced code blocks of Markdown or similar mechanisms of other documentation
markup languages.")
      (license license:bsd-0))))

(define-public dpic
  (let ((commit "1354b63eb7120e5d0d40855c18d69e413a636ef2")
        (revision "0"))
    (package
      (name "dpic")
      (version (git-version "2025.08.01" revision commit))
      (home-page "https://gitlab.com/aplevich/dpic")
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url (string-append home-page ".git"))
               (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32 "00r4dqwmlbpbb7kshprp9n29cmb8vxy345xqpzlba6bnw5vrgpv9"))))
      (build-system gnu-build-system)
      (arguments
       (list
        #:tests? #f
        #:make-flags
        #~(list (string-append "CC=" #$(cc-for-target))
                (string-append "DESTDIR=" #$output))))
      (synopsis "Implementation of the pic language")
      (description
       "Dpic is an implementation of the pic \"little language\" for creating
line drawings and illustrations for documents, web pages, and other
uses.")
      (license (list license:bsd-2 license:cc-by3.0 license:lppl1.3c)))))