;;; Guile-Git --- GNU Guile bindings of libgit2
;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2021, 2024 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Guile-Git.
;;;
;;; Guile-Git 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.
;;;
;;; Guile-Git 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 Guile-Git.  If not, see <http://www.gnu.org/licenses/>.

(define-module (tests config)
  #:use-module (srfi srfi-64))

(use-modules (tests helpers))
(use-modules (git))

(test-begin "config")

(libgit2-init!)

(with-repository "simple-bare" directory

  (test-equal "config entry get"
    "true"
    (let* ((repository (repository-open directory))
           (config (repository-config repository))
           (entry (config-get-entry config "core.bare")))
      (config-entry-value entry)))

  (test-equal "config entry get, nonexistent"
    GIT_ENOTFOUND
    (catch 'git-error
      (lambda ()
        (let* ((repository (repository-open directory))
               (config (repository-config repository)))
          (config-get-entry config "something.that.does-not-exist")))
      (lambda (key error . rest)
        (git-error-code error))))

  (test-equal "config entry"
    "true"
    (let* ((repository (repository-open directory))
           (config (repository-config repository))
           (bare #f))
      (config-foreach config (lambda (entry)
                               (when (equal? (config-entry-name entry) "core.bare")
                                 (set! bare (config-entry-value entry)))
                               0))
      bare))

  (test-equal "config entry fold"
    "true"
    (let* ((repository (repository-open directory))
           (config (repository-config repository)))
      (config-fold (lambda (entry out)
                     (gc)
                     (format #t "~a~%" entry)
                     (if (equal? (config-entry-name entry) "core.bare")
                         (config-entry-value entry)
                         out))
                   #f config)))

  (test-assert "config entry fold, capture entries"
    ;; Purposefully capture the <config-entry> record passed by 'config-fold'
    ;; and make sure we can access them after 'config-fold' has returned.
    (let* ((repository (repository-open directory))
           (config     (repository-config repository))
           (entries    (config-fold cons '() config))
           (keys       '("core.bare" "core.filemode"
                         "core.repositoryformatversion")))
      (gc)

      ;; Since ~/.gitconfig can add arbitrary entries, only look at KEYS.
      (equal? (sort (filter (lambda (name)
                              (member name keys))
                            (map config-entry-name entries))
                    string<?)
              keys)))

  (test-equal "set-config-string & co."
    `("Hello, world." "42" ,(number->string (expt 2 42)) "false")
    (let* ((repository (repository-open directory))
           (config     (repository-config repository)))
      (and (not (false-if-exception (config-get-entry config "guix.test.string")))
           (begin
             (set-config-string config "guix.test.string" "Hello, world.")
             (set-config-integer config "guix.test.int32" 42)
             (set-config-integer config "guix.test.int64" (expt 2 42))
             (set-config-boolean config "guix.test.boolean" #f)
             (repository-close! repository)
             (let ((repository (repository-open directory))
                   (config     (repository-config repository)))
               (system* "cat" (string-append directory "/config"))
               (map (lambda (key)
                      (config-entry-value (config-get-entry config key)))
                    '("guix.test.string"
                      "guix.test.int32"
                      "guix.test.int64"
                      "guix.test.boolean"))))))))

(libgit2-shutdown!)

(test-end)
