(define-module (session-desktop)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages cups)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages gl)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages kerberos)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages nss)
  #:use-module (gnu packages pulseaudio)
  #:use-module (gnu packages xdisorg)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages xorg)
  #:use-module (guix download)
  #:use-module (guix gexp)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (guix licenses)
  #:use-module (nonguix build-system binary)
  #:use-module (nonguix build-system chromium-binary)
  #:use-module (nonguix licenses)
  #:use-module (ice-9 match))

(define-public session-desktop
  (package
    (name "session-desktop")
    (version "1.11.4")
    (source
     (origin
       (method url-fetch)
       (uri
        (string-append
         "https://github.com/oxen-io/" name "/releases/download/v" version "/" name "-linux-amd64-" version ".deb"))
       (sha256
        (base32 "1yfagz54gvx0nw70pwfqasfiv6b806kjz0jdllrr701fvaf815a9"))))
    (supported-systems '("x86_64-linux"))
    (build-system chromium-binary-build-system)
    (arguments
     (list #:validate-runpath? #f ; TODO: fails on wrapped binary and included other files
           #:wrapper-plan
           #~'("lib/Session/session-desktop")
           #:phases
           #~(modify-phases %standard-phases
               (replace 'unpack
                 (lambda _
                   (invoke "ar" "x" #$source)
                   (invoke "tar" "xvf" "data.tar.xz")
                   (copy-recursively "usr/" ".")
                   ;; Use the more standard lib directory for everything.
                   (rename-file "opt/" "lib")
                   ;; Remove unneeded files.
                   (delete-file-recursively "usr")
                   (delete-file "control.tar.gz")
                   (delete-file "data.tar.xz")
                   (delete-file "debian-binary")
                   (delete-file "environment-variables")
                   ;; Fix the .desktop file binary location.
                   (substitute* '("share/applications/session-desktop.desktop") 
                     (("/opt/Session/")
                      (string-append #$output "/bin/")))))
               (add-after 'install 'symlink-binary-file-and-cleanup
                 (lambda _
                   (delete-file (string-append #$output "/environment-variables"))
                   (mkdir-p (string-append #$output "/bin"))
                   (symlink (string-append #$output "/lib/Session/session-desktop")
                            (string-append #$output "/bin/session-desktop"))))
               (add-after 'install-wrapper 'wrap-where-patchelf-does-not-work
                 (lambda _
                   (wrap-program (string-append #$output "/lib/Session/session-desktop")
                     `("LD_LIBRARY_PATH" ":" prefix
                       (,(string-join
                          (list
                           (string-append #$output "/lib/Session"))
                          ":")))))))))
    (native-inputs (list tar))
    (home-page "https://getsession.org/")
    (synopsis "Session Desktop - Onion routing based messenger")
    (description "Session integrates directly with Oxen Service Nodes, which are a set of distributed, decentralized and Sybil resistant nodes. Service Nodes act as servers which store messages offline, and a set of nodes which allow for onion routing functionality obfuscating users IP Addresses. For a full understanding of how Session works, read the Session Whitepaper.")
    (license gpl3)))