;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
;;;
;;; 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 (test-elpa)
  #:use-module (guix import elpa)
  #:use-module (guix tests)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-64)
  #:use-module (ice-9 match))

(define elpa-mock-archive
  '(1
    (ace-window .
                [(0 9 0)
                 ((avy
                   (0 2 0)))
                 "Quickly switch windows." single
                 ((:url . "https://github.com/abo-abo/ace-window")
                  (:keywords "window" "location"))])
    (auctex .
            [(11 88 6)
             nil "Integrated environment for *TeX*" tar
             ((:url . "http://www.gnu.org/software/auctex/"))])))

(define auctex-readme-mock "This is the AUCTeX description.")

(define* (elpa-package-info-mock name #:optional (repo "gnu"))
  "Simulate retrieval of 'archive-contents' file from REPO and extraction of
information about package NAME. (Function 'elpa-package-info'.)"
  (let* ((archive elpa-mock-archive)
         (info (filter (lambda (p) (eq? (first p) (string->symbol name)))
                       (cdr archive))))
    (if (pair? info) (first info) #f)))

(define elpa-version->string
  (@@ (guix import elpa) elpa-version->string))

(define package-source-url
  (@@ (guix import elpa) package-source-url))

(define ensure-list
  (@@ (guix import elpa) ensure-list))

(define package-home-page
  (@@ (guix import elpa) package-home-page))

(define make-elpa-package
  (@@ (guix import elpa) make-elpa-package))

(test-begin "elpa")

(define (eval-test-with-elpa pkg)
  (mock
   ;; replace the two fetching functions
   ((guix import elpa) fetch-elpa-package
    (lambda* (name #:optional (repo "gnu"))
      (let ((pkg (elpa-package-info-mock name repo)))
        (match pkg
          ((name version reqs synopsis kind . rest)
           (let* ((name (symbol->string name))
                  (ver (elpa-version->string version))
                  (url (package-source-url kind name ver repo)))
             (make-elpa-package name ver
                                (ensure-list reqs) synopsis kind
                                (package-home-page (first rest))
                                auctex-readme-mock
                                url)))
          (_ #f)))))
   (mock
    ((guix build download) url-fetch
     (lambda (url file . _)
       (call-with-output-file file
         (lambda (port)
           (display "fake tarball" port)))))

    (match (elpa->guix-package pkg)
      (('package
         ('name "emacs-auctex")
         ('version "11.88.6")
         ('source
          ('origin
            ('method 'url-fetch)
            ('uri ('string-append
                   "https://elpa.gnu.org/packages/auctex-" 'version ".tar"))
            ('sha256 ('base32 (? string? hash)))))
         ('build-system 'emacs-build-system)
         ('home-page "http://www.gnu.org/software/auctex/")
         ('synopsis "Integrated environment for *TeX*")
         ('description (? string?))
         ('license 'license:gpl3+))
       #t)
      (x
       (pk 'fail x #f))))))

(test-assert "elpa->guix-package test 1"
  (eval-test-with-elpa "auctex"))

(test-end "elpa")
s='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-05-10 11:07:51 +0200'>2015-05-10</span></td><td><a href='/guix/commit/README?id=47c66da00b737b28f27429e472c71cf987409b60'>build: Require Guile &gt;= 2.0.7.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-10-27 13:53:46 +0100'>2014-10-27</span></td><td><a href='/guix/commit/README?id=8a96bd4bb0f0b67f535ab84d22d1275436fa0b8e'>doc: Add a note about optional GnuTLS dependency.</a><span class='msg-avail'>...</span></td><td>Ian Denhardt</td></tr>
<tr><td><span title='2014-10-06 19:34:27 +0200'>2014-10-06</span></td><td><a href='/guix/commit/README?id=288dca55a8070b502fd403639e791967dbe55b34'>doc: Mention optional dependency on Guile-JSON.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-09-02 17:44:56 +0200'>2014-09-02</span></td><td><a href='/guix/commit/README?id=fa747b27fc972240ca3f00a1a4d36e6601d0450e'>doc: Update "Installing Guix from Guix".</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-08-26 20:00:40 +0200'>2014-08-26</span></td><td><a href='/guix/commit/README?id=d17ef3562088fae280f8a1506d6da71e5f7de135'>doc: Replace /nix/store with /gnu/store in README.</a><span class='msg-avail'>...</span></td><td>John Darrington</td></tr>
<tr><td><span title='2014-04-10 21:41:58 +0200'>2014-04-10</span></td><td><a href='/guix/commit/README?id=47d347b725aa5bb64468b99da1fc3a644cf1e1c2'>doc: Mention 'gcc-toolchain' in README.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-11-16 21:56:44 +0100'>2013-11-16</span></td><td><a href='/guix/commit/README?id=8db351e338afa0b8278571105776a7e2391e49ef'>doc: Improve "Installing Guix from Guix" section.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-07-19 00:07:03 +0200'>2013-07-19</span></td><td><a href='/guix/commit/README?id=8b2d9e5d44691110aa34d768d3aae4a4d862011a'>doc: Improve build instructions in README and HACKING.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-07-17 11:01:42 +0200'>2013-07-17</span></td><td><a href='/guix/commit/README?id=4a328f7342ade8dd8536638e19bc8a5b33bb89fe'>doc: Mark 2.0.5 as being the minimum Guile version.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-06-12 09:16:54 +0200'>2013-06-12</span></td><td><a href='/guix/commit/README?id=d4c748607995bec8a13f058bdeba89e41ff6539c'>doc: Describe the build procedure in more detail.</a><span class='msg-avail'>...</span></td><td>Konrad Hinsen</td></tr>